Hunger and food securitypeoplemodeled estimate
Prevalence of undernourishment
Who is likely to have chronically insufficient dietary energy?
What it countsPeople or population share
Unitpeople or percent
PopulationWhole population
Geographic universeGlobal and country estimates
Time basisAnnual model estimate / multi-year statistical framework
Official sourceSOFI / FAO
What to watch
Common confusion: Often treated as the same as FIES food insecurity or acute food-crisis classifications.
Comparison limit: Not interchangeable with FIES, GRFC/IPC/CH, or child-wasting estimates.
Adding rule: Do not add to the other hunger headline populations.
Related measures
overlaps with:
Moderate or severe FIES. The populations may overlap, but the measures use different constructs and the source package does not quantify overlap.
not directly comparable to:
Moderate or severe FIES. Modeled chronic dietary-energy inadequacy versus experience-based food-access difficulty.
not directly comparable to:
IPC/CH Phase 3 or worse. Global modeled chronic-hunger estimate versus acute classification in selected crisis settings.
not directly comparable to:
Wasting. Child anthropometric outcome versus whole-population dietary-energy estimate.
Related WSI content: Hunger is not one number
Technical details
Stable measure ID: WSI-MEASURE-POU
Registry version: WSI-SMR-v1.0.0
Source release: The State of Food Security and Nutrition in the World 2026
Source release ID: WSI-SOURCE-SOFI-2026
Indicator code: Not recorded in the current source package
Output type: Modeled prevalence and number
Status: active
Link to this measure
Hunger and food securitypeopleperiod prevalence
Moderate or severe food insecurity measured by FIES
Who reports difficulty accessing adequate food?
What it countsPeople or population share
Unitpeople or percent
PopulationPeople age 15+ surveyed, calibrated to population estimates
Geographic universeGlobal and country estimates
Time basisPast 12 months / official reporting period
Official sourceSOFI / FAOSTAT FIES
What to watch
Common confusion: Often equated with chronic undernourishment or crisis-level acute food insecurity.
Comparison limit: Broader experiential measure; not a count of chronically undernourished people.
Adding rule: Do not add to PoU, GRFC/IPC/CH, or wasting totals.
Related measures
includes subset:
Severe FIES. Severe FIES is included within moderate-or-severe FIES.
overlaps with:
Undernourishment (PoU). The populations may overlap, but the measures use different constructs and the source package does not quantify overlap.
overlaps with:
IPC/CH Phase 3 or worse. People may appear in both systems, but the measures have different universes, periods, and classification methods.
not directly comparable to:
Undernourishment (PoU). Modeled chronic dietary-energy inadequacy versus experience-based food-access difficulty.
not directly comparable to:
IPC/CH Phase 3 or worse. Experience-based prevalence versus acute severity classification in analysed crisis settings.
not directly comparable to:
Wasting. Child physical outcome versus experience-based food access.
not additive to:
Severe FIES. Severe FIES is already included within moderate-or-severe FIES.
Related WSI content: Hunger is not one number
Technical details
Stable measure ID: WSI-MEASURE-FIES-MODSEV
Registry version: WSI-SMR-v1.0.0
Source release: The State of Food Security and Nutrition in the World 2026
Source release ID: WSI-SOURCE-SOFI-2026
Indicator code: Not recorded in the current source package
Output type: Experience-based prevalence and number
Status: active
Link to this measure
Hunger and food securitypeopleperiod prevalence
Severe food insecurity measured by FIES
Who experiences the most severe range of reported food-access difficulty?
What it countsPeople or population share
Unitpeople or percent
PopulationPeople age 15+ surveyed, calibrated to population estimates
Geographic universeCountry and territory records in the validated FIES profile
Time basisPast 12 months / official reporting period
Official sourceFAOSTAT FIES
What to watch
Common confusion: Sometimes added to moderate-or-severe FIES even though it is already included.
Comparison limit: A subset of moderate-or-severe FIES; the Step 11B chart summarizes 125 records in prevalence bands.
Adding rule: Do not add to moderate-or-severe FIES.
Related measures
Related WSI content: Hunger is not one number
Technical details
Stable measure ID: WSI-MEASURE-FIES-SEVERE
Registry version: WSI-SMR-v1.0.0
Source release: Validated 125-record FIES evidence profile
Source release ID: WSI-SOURCE-WSI-FIES-2023-2025-V1.1
Indicator code: Not recorded in the current source package
Output type: Experience-based prevalence and number
Status: active
Link to this measure
Hunger and food securitypeopleclassification-period population
High acute food insecurity at Crisis or worse
Who in analysed crisis settings needs urgent action?
What it countsPeople in covered crisis areas
Unitpeople
PopulationPeople in covered crisis areas
Geographic universeSelected crisis countries and areas
Time basisCurrent or projected acute analysis period
Official sourceGRFC / IPC / Cadre Harmonisé
What to watch
Common confusion: Often treated as a global prevalence estimate comparable to FIES or PoU.
Comparison limit: The GRFC 2026 headline covers 47 analysed countries and territories, not the global population.
Adding rule: Do not add to global FIES, PoU, or child-wasting populations.
Related measures
overlaps with:
Moderate or severe FIES. People may appear in both systems, but the measures have different universes, periods, and classification methods.
overlaps with:
Wasting. The populations may overlap, but the source package does not estimate the overlap and the measures count different outcomes.
not directly comparable to:
Undernourishment (PoU). Global modeled chronic-hunger estimate versus acute classification in selected crisis settings.
not directly comparable to:
Moderate or severe FIES. Experience-based prevalence versus acute severity classification in analysed crisis settings.
not directly comparable to:
Wasting. Child nutrition outcome versus acute food-insecurity classification.
same concept, different universe:
Phase 3 - Crisis. Both use acute food-insecurity phase concepts, but the registered observation is from a narrower 14-country 2026 set while the GRFC headline covers 47 settings in 2025.
same concept, different universe:
Phase 4 - Emergency. Both use acute food-insecurity phase concepts, but the registered observation is from a narrower 14-country 2026 set while the GRFC headline covers 47 settings in 2025.
same concept, different universe:
Phase 5 - Catastrophe/Famine. Both use acute food-insecurity phase concepts, but the registered observation is from a narrower 14-country 2026 set while the GRFC headline covers 47 settings in 2025.
Related WSI content: Hunger is not one number
Technical details
Stable measure ID: WSI-MEASURE-GRFC-IPC3PLUS
Registry version: WSI-SMR-v1.0.0
Source release: Global Report on Food Crises 2026
Source release ID: WSI-SOURCE-GRFC-2026
Indicator code: Not recorded in the current source package
Output type: Severity-classified acute population
Status: active
Link to this measure
Hunger and food securitypeopleclassification-period population
Cadre Harmonisé Phase 3 - Crisis
How many people are in Crisis, excluding those already counted in more severe phases?
What it countsPeople
Unitpeople
PopulationAnalysed population in the validated 14-country set
Geographic universeFourteen Cadre Harmonisé countries
Time basisJune-August 2026 displayed period
Official sourceCadre Harmonisé source evidence
What to watch
Common confusion: The cumulative Phase 3+ control includes Phase 4 and Phase 5 populations.
Comparison limit: Specific to the validated 14-country June-August 2026 set.
Adding rule: May be added to the mutually exclusive Phase 4 and Phase 5 values from the same set and period only.
Related measures
mutually exclusive with:
Phase 4 - Emergency. The Step 11B chart derives mutually exclusive phase populations for the same set and period.
mutually exclusive with:
Phase 5 - Catastrophe/Famine. The Step 11B chart derives mutually exclusive phase populations for the same set and period.
same concept, different universe:
IPC/CH Phase 3 or worse. Both use acute food-insecurity phase concepts, but the registered observation is from a narrower 14-country 2026 set while the GRFC headline covers 47 settings in 2025.
Related WSI content: Hunger is not one number
Technical details
Stable measure ID: WSI-MEASURE-CH-PHASE3
Registry version: WSI-SMR-v1.0.0
Source release: Validated 14-country Cadre Harmonisé phase composition
Source release ID: WSI-SOURCE-WSI-CH-2026-V1.1
Indicator code: Not recorded in the current source package
Output type: WSI-derived mutually exclusive phase population
Status: active
Link to this measure
Hunger and food securitypeopleclassification-period population
Cadre Harmonisé Phase 4 - Emergency
How many people are in Emergency, excluding Phase 5?
What it countsPeople
Unitpeople
PopulationAnalysed population in the validated 14-country set
Geographic universeFourteen Cadre Harmonisé countries
Time basisJune-August 2026 displayed period
Official sourceCadre Harmonisé source evidence
What to watch
Common confusion: The cumulative Phase 4+ control already includes Phase 5.
Comparison limit: Specific to the validated 14-country June-August 2026 set.
Adding rule: May be added to the mutually exclusive Phase 3 and Phase 5 values from the same set and period only.
Related measures
mutually exclusive with:
Phase 3 - Crisis. The Step 11B chart derives mutually exclusive phase populations for the same set and period.
mutually exclusive with:
Phase 5 - Catastrophe/Famine. The Step 11B chart derives mutually exclusive phase populations for the same set and period.
same concept, different universe:
IPC/CH Phase 3 or worse. Both use acute food-insecurity phase concepts, but the registered observation is from a narrower 14-country 2026 set while the GRFC headline covers 47 settings in 2025.
Related WSI content: Hunger is not one number
Technical details
Stable measure ID: WSI-MEASURE-CH-PHASE4
Registry version: WSI-SMR-v1.0.0
Source release: Validated 14-country Cadre Harmonisé phase composition
Source release ID: WSI-SOURCE-WSI-CH-2026-V1.1
Indicator code: Not recorded in the current source package
Output type: WSI-derived mutually exclusive phase population
Status: active
Link to this measure
Hunger and food securitypeopleclassification-period population
Cadre Harmonisé Phase 5 - Catastrophe/Famine
How many people are classified in Catastrophe/Famine?
What it countsPeople
Unitpeople
PopulationAnalysed population in the validated 14-country set
Geographic universeFourteen Cadre Harmonisé countries
Time basisJune-August 2026 displayed period
Official sourceCadre Harmonisé source evidence
What to watch
Common confusion: Sometimes treated as an additional count on top of cumulative Phase 4+ or Phase 3+ values.
Comparison limit: Specific to the validated 14-country June-August 2026 set.
Adding rule: May be added only to mutually exclusive Phase 3 and Phase 4 values from the same set and period.
Related measures
mutually exclusive with:
Phase 3 - Crisis. The Step 11B chart derives mutually exclusive phase populations for the same set and period.
mutually exclusive with:
Phase 4 - Emergency. The Step 11B chart derives mutually exclusive phase populations for the same set and period.
same concept, different universe:
IPC/CH Phase 3 or worse. Both use acute food-insecurity phase concepts, but the registered observation is from a narrower 14-country 2026 set while the GRFC headline covers 47 settings in 2025.
Related WSI content: Hunger is not one number
Technical details
Stable measure ID: WSI-MEASURE-CH-PHASE5
Registry version: WSI-SMR-v1.0.0
Source release: Validated 14-country Cadre Harmonisé phase composition
Source release ID: WSI-SOURCE-WSI-CH-2026-V1.1
Indicator code: Not recorded in the current source package
Output type: Source-reported phase population
Status: active
Link to this measure
Child nutritionchildrenprevalence estimate
Child wasting
Which children have a serious physical nutrition outcome?
What it countsChildren under age five or prevalence
Unitchildren or percent
PopulationChildren under age five
Geographic universeGlobal and regional estimates
Time basisSurvey/model reference year
Official sourceUNICEF/WHO/World Bank JME
What to watch
Common confusion: Often treated as another count of food-insecure or hungry people.
Comparison limit: A child nutrition outcome, not a food-access or acute-crisis population measure.
Adding rule: Do not add to PoU, FIES, or GRFC/IPC/CH populations.
Related measures
includes subset:
Severe wasting. Severe wasting is included within total wasting.
overlaps with:
IPC/CH Phase 3 or worse. The populations may overlap, but the source package does not estimate the overlap and the measures count different outcomes.
not directly comparable to:
Undernourishment (PoU). Child anthropometric outcome versus whole-population dietary-energy estimate.
not directly comparable to:
IPC/CH Phase 3 or worse. Child nutrition outcome versus acute food-insecurity classification.
not additive to:
Severe wasting. Severe wasting is already included within total wasting.
Related WSI content: Hunger is not one number
Technical details
Stable measure ID: WSI-MEASURE-JME-WASTING
Registry version: WSI-SMR-v1.0.0
Source release: Joint Child Malnutrition Estimates 2025 edition
Source release ID: WSI-SOURCE-JME-2025
Indicator code: Not recorded in the current source package
Output type: Prevalence and number of children
Status: active
Link to this measure
Child nutritionchildrenprevalence estimate
Severe child wasting
How many children are in the severe wasting subset?
What it countsChildren under age five or prevalence
Unitchildren or percent
PopulationChildren under age five
Geographic universeGlobal and regional estimates
Time basisSurvey/model reference year
Official sourceUNICEF/WHO/World Bank JME
What to watch
Common confusion: Sometimes added to total wasting even though severe wasting is already included.
Comparison limit: A subset of total wasting.
Adding rule: Do not add to total wasting.
Related measures
subset of:
Wasting. Severe wasting is included within total wasting.
not additive to:
Wasting. Severe wasting is already included within total wasting.
Related WSI content: Hunger is not one number
Technical details
Stable measure ID: WSI-MEASURE-JME-SEVERE-WASTING
Registry version: WSI-SMR-v1.0.0
Source release: Joint Child Malnutrition Estimates 2025 edition
Source release ID: WSI-SOURCE-JME-2025
Indicator code: Not recorded in the current source package
Output type: Prevalence and number of children
Status: active
Link to this measure
Refugees and protectionpeopleyear-end stock
Refugees globally - broad UNHCR headline
How many people are included in UNHCR’s broad global refugee headline?
What it countsPeople
Unitpeople
PopulationThree published refugee/protection groupings
Geographic universeWorld
Time basisEnd-year stock
Official sourceUNHCR Global Trends
What to watch
Common confusion: Often treated as identical to refugees under UNHCR mandate or combined again with the refugee-like subset.
Comparison limit: The 41.6 million headline is a rounded grouping of three components.
Adding rule: Do not add the refugee-like subset again.
Related measures
includes component:
UNHCR-mandate refugees. Refugees under UNHCR mandate are one component of the broad headline.
derived from:
UNHCR-mandate refugees. The published rounded broad headline is consistent with these three source components.
not directly comparable to:
All-cause IDP stock. Cross-border refugee categories versus people displaced within their country.
Related WSI content: Displacement is not one number
Technical details
Stable measure ID: WSI-MEASURE-REFUGEES-GLOBAL
Registry version: WSI-SMR-v1.0.0
Source release: Global Trends 2025
Source release ID: WSI-SOURCE-UNHCR-GLOBAL-TRENDS-2025
Indicator code: Not recorded in the current source package
Output type: Published rounded stock headline
Status: active
Link to this measure
Refugees and protectionpeopleyear-end stock
Refugees under UNHCR mandate
How many refugees are reported under UNHCR’s mandate?
What it countsPeople
Unitpeople
PopulationRefugees under UNHCR mandate
Geographic universeWorld
Time basisEnd-year stock
Official sourceUNHCR Global Trends
What to watch
Common confusion: Often used as if it were the same as the broader 41.6 million refugee headline.
Comparison limit: Includes people in refugee-like situations.
Adding rule: May be combined with the other two published components only when reproducing the broad headline; do not add refugee-like situations separately.
Related measures
includes subset:
Refugee-like situations. UNHCR states that refugee-like situations are included within refugees under its mandate.
component of:
Refugees globally. Refugees under UNHCR mandate are one component of the broad headline.
used to derive:
Refugees globally. The published rounded broad headline is consistent with these three source components.
not additive to:
Refugee-like situations. Refugee-like situations are already included within the UNHCR-mandate refugee total.
Related WSI content: Displacement is not one number
Technical details
Stable measure ID: WSI-MEASURE-REFUGEES-UNHCR
Registry version: WSI-SMR-v1.0.0
Source release: Global Trends 2025
Source release ID: WSI-SOURCE-UNHCR-GLOBAL-TRENDS-2025
Indicator code: Not recorded in the current source package
Output type: Source-reported stock
Status: active
Link to this measure
Refugees and protectionpeopleyear-end stock
People in refugee-like situations
How many people are reported in refugee-like situations?
What it countsPeople
Unitpeople
PopulationPeople in refugee-like situations
Geographic universeWorld
Time basisEnd-year stock
Official sourceUNHCR figures and methodology
What to watch
Common confusion: Frequently added to refugees under UNHCR mandate even though it is already included.
Comparison limit: Subset of refugees under UNHCR mandate.
Adding rule: Do not add to refugees under UNHCR mandate or the broad refugee headline.
Related measures
subset of:
UNHCR-mandate refugees. UNHCR states that refugee-like situations are included within refugees under its mandate.
not additive to:
UNHCR-mandate refugees. Refugee-like situations are already included within the UNHCR-mandate refugee total.
Related WSI content: Displacement is not one number
Technical details
Stable measure ID: WSI-MEASURE-REFUGEE-LIKE
Registry version: WSI-SMR-v1.0.0
Source release: Global Trends 2025
Source release ID: WSI-SOURCE-UNHCR-GLOBAL-TRENDS-2025
Indicator code: Not recorded in the current source package
Output type: Source-reported stock subset
Status: active
Link to this measure
Refugees and protectionpeopleyear-end stock
Other people in need of international protection
How many people are reported in this separate international-protection category?
What it countsPeople
Unitpeople
PopulationOther people in need of international protection
Geographic universeWorld
Time basisEnd-year stock
Official sourceUNHCR Global Trends
What to watch
Common confusion: Sometimes omitted when readers reconstruct the broad refugee headline.
Comparison limit: A separate component of the broad 41.6 million headline.
Adding rule: Can be combined with the two other published components only for the broad refugee headline.
Related measures
component of:
Refugees globally. Other people in need of international protection are one component of the broad headline.
used to derive:
Refugees globally. The published rounded broad headline is consistent with these three source components.
Related WSI content: Displacement is not one number
Technical details
Stable measure ID: WSI-MEASURE-OIP
Registry version: WSI-SMR-v1.0.0
Source release: Global Trends 2025
Source release ID: WSI-SOURCE-UNHCR-GLOBAL-TRENDS-2025
Indicator code: Not recorded in the current source package
Output type: Source-reported stock
Status: active
Link to this measure
Refugees and protectionpeopleyear-end stock
Palestine refugees under UNRWA mandate
How many Palestine refugees are reported under UNRWA mandate in the broad headline?
What it countsPeople
Unitpeople
PopulationPalestine refugees under UNRWA mandate
Geographic universeWorld
Time basisEnd-year stock
Official sourceUNHCR Global Trends / UNRWA mandate category
What to watch
Common confusion: Sometimes omitted or treated as if it were already within the UNHCR-mandate refugee component.
Comparison limit: Reported separately under UNRWA mandate and used as one component of the broad headline.
Adding rule: Can be combined with the other two components only for the broad refugee headline.
Related measures
component of:
Refugees globally. Palestine refugees under UNRWA mandate are one component of the broad headline.
used to derive:
Refugees globally. The published rounded broad headline is consistent with these three source components.
Related WSI content: Displacement is not one number
Technical details
Stable measure ID: WSI-MEASURE-PALESTINE-REFUGEES-UNRWA
Registry version: WSI-SMR-v1.0.0
Source release: Global Trends 2025
Source release ID: WSI-SOURCE-UNHCR-GLOBAL-TRENDS-2025
Indicator code: Not recorded in the current source package
Output type: Source-reported stock
Status: active
Link to this measure
Internal displacementpeopleyear-end stock
People living in internal displacement - all causes
How many people were still living in internal displacement at year-end?
What it countsPeople
Unitpeople
PopulationInternally displaced people
Geographic universeIDMC global estimate
Time basisEnd-year stock
Official sourceIDMC GRID
What to watch
Common confusion: Often compared directly with annual internal displacement movements.
Comparison limit: A people stock at one point in time, not the number of displacement events during the year.
Adding rule: Conflict and disaster stock components can be combined within the same year and source universe.
Related measures
derived from:
Conflict IDP stock. All-cause IDP stock is composed of conflict/violence and disaster stock values.
derived from:
Disaster IDP stock. All-cause IDP stock is composed of conflict/violence and disaster stock values.
not directly comparable to:
Refugees globally. Cross-border refugee categories versus people displaced within their country.
Related WSI content: Displacement is not one number
Technical details
Stable measure ID: WSI-MEASURE-IDP-STOCK-ALL
Registry version: WSI-SMR-v1.0.0
Source release: Global Report on Internal Displacement 2026
Source release ID: WSI-SOURCE-IDMC-GRID-2026
Indicator code: Not recorded in the current source package
Output type: Source-reported stock
Status: active
Link to this measure
Internal displacementpeopleyear-end stock
People living in internal displacement due to conflict and violence
How many people remained internally displaced by conflict and violence at year-end?
What it countsPeople
Unitpeople
PopulationConflict- and violence-related IDPs
Geographic universeIDMC global estimate
Time basisEnd-year stock
Official sourceIDMC GRID
What to watch
Common confusion: Often compared directly with conflict-related displacement movements during the year.
Comparison limit: Counts people remaining displaced, not repeated movements.
Adding rule: Can be combined with the disaster IDP stock from the same year and source universe.
Related measures
used to derive:
All-cause IDP stock. All-cause IDP stock is composed of conflict/violence and disaster stock values.
people versus movements:
Conflict displacement movements. The conflict and violence stock counts people; the flow counts displacement events and may count one person more than once.
Related WSI content: Displacement is not one number
Technical details
Stable measure ID: WSI-MEASURE-IDP-STOCK-CONFLICT
Registry version: WSI-SMR-v1.0.0
Source release: Global Report on Internal Displacement 2026
Source release ID: WSI-SOURCE-IDMC-GRID-2026
Indicator code: Not recorded in the current source package
Output type: Source-reported stock
Status: active
Link to this measure
Internal displacementpeopleyear-end stock
People living in internal displacement due to disasters
How many people remained internally displaced by disasters at year-end?
What it countsPeople
Unitpeople
PopulationDisaster-related IDPs
Geographic universeIDMC global estimate
Time basisEnd-year stock
Official sourceIDMC GRID
What to watch
Common confusion: Often compared directly with disaster displacement movements during the year.
Comparison limit: Counts people remaining displaced, not temporary evacuations or repeated movements as events.
Adding rule: Can be combined with the conflict IDP stock from the same year and source universe.
Related measures
used to derive:
All-cause IDP stock. All-cause IDP stock is composed of conflict/violence and disaster stock values.
people versus movements:
Disaster displacement movements. The disasters stock counts people; the flow counts displacement events and may count one person more than once.
Related WSI content: Displacement is not one number
Technical details
Stable measure ID: WSI-MEASURE-IDP-STOCK-DISASTER
Registry version: WSI-SMR-v1.0.0
Source release: Global Report on Internal Displacement 2026
Source release ID: WSI-SOURCE-IDMC-GRID-2026
Indicator code: Not recorded in the current source package
Output type: Source-reported stock
Status: active
Link to this measure
Internal displacementeventsannual flow
Internal displacement movements - all causes
How many internal displacement movements occurred during the year?
What it countsMovements
Unitmovements
PopulationInternal displacement movements
Geographic universeIDMC recorded countries and territories
Time basisAnnual flow
Official sourceIDMC GRID
What to watch
Common confusion: Often interpreted as unique people or compared directly with the year-end IDP stock.
Comparison limit: A person may be counted more than once; some disaster movements may be temporary or pre-emptive.
Adding rule: Conflict and disaster movements can be combined within the same year and source universe; do not add to the year-end stock.
Related measures
stock versus flow:
All-cause IDP stock. The all causes stock counts people at year-end; the flow counts movements during the year.
people versus movements:
All-cause IDP stock. The all causes stock counts people; the flow counts displacement events and may count one person more than once.
not directly comparable to:
Refugees globally. Year-end refugee stock versus annual internal displacement movements.
not directly comparable to:
All-cause IDP stock. People at year-end versus movement events during the year.
Related WSI content: Displacement is not one number
Technical details
Stable measure ID: WSI-MEASURE-IDP-MOVEMENTS-ALL
Registry version: WSI-SMR-v1.0.0
Source release: Global Report on Internal Displacement 2026
Source release ID: WSI-SOURCE-IDMC-GRID-2026
Indicator code: Not recorded in the current source package
Output type: Source-reported movement flow
Status: active
Link to this measure
Internal displacementeventsannual flow
Internal displacement movements linked to conflict and violence
How many conflict-related internal displacement movements occurred during the year?
What it countsMovements
Unitmovements
PopulationConflict- and violence-related movements
Geographic universeIDMC recorded countries and territories
Time basisAnnual flow
Official sourceIDMC GRID
What to watch
Common confusion: Often treated as unique people or as the number still displaced at year-end.
Comparison limit: One person can be counted more than once.
Adding rule: Can be combined with disaster movements from the same year and source universe; do not add to conflict IDP stock.
Related measures
stock versus flow:
Conflict IDP stock. The conflict and violence stock counts people at year-end; the flow counts movements during the year.
people versus movements:
Conflict IDP stock. The conflict and violence stock counts people; the flow counts displacement events and may count one person more than once.
Related WSI content: Displacement is not one number
Technical details
Stable measure ID: WSI-MEASURE-IDP-MOVEMENTS-CONFLICT
Registry version: WSI-SMR-v1.0.0
Source release: Global Report on Internal Displacement 2026
Source release ID: WSI-SOURCE-IDMC-GRID-2026
Indicator code: Not recorded in the current source package
Output type: Source-reported movement flow
Status: active
Link to this measure
Internal displacementeventsannual flow
Internal displacement movements linked to disasters
How many disaster-related internal displacement movements occurred during the year?
What it countsMovements
Unitmovements
PopulationDisaster-related movements
Geographic universeIDMC recorded countries and territories
Time basisAnnual flow
Official sourceIDMC GRID
What to watch
Common confusion: Often treated as unique people or as the number still displaced at year-end.
Comparison limit: One person can be counted more than once; some movements may be temporary or pre-emptive.
Adding rule: Can be combined with conflict movements from the same year and source universe; do not add to disaster IDP stock.
Related measures
stock versus flow:
Disaster IDP stock. The disasters stock counts people at year-end; the flow counts movements during the year.
people versus movements:
Disaster IDP stock. The disasters stock counts people; the flow counts displacement events and may count one person more than once.
Related WSI content: Displacement is not one number
Technical details
Stable measure ID: WSI-MEASURE-IDP-MOVEMENTS-DISASTER
Registry version: WSI-SMR-v1.0.0
Source release: Global Report on Internal Displacement 2026
Source release ID: WSI-SOURCE-IDMC-GRID-2026
Indicator code: Not recorded in the current source package
Output type: Source-reported movement flow
Status: active
Link to this measure
Infectious diseaseeventsannual flow
Reported suspected dengue cases
How many suspected dengue cases were reported?
What it countsReported case events
Unitreported cases
PopulationPeople reported through national dengue surveillance
Geographic universeAmericas regional surveillance reporting universe
Time basisAnnual surveillance period
Official sourcePan American Health Organization
What to watch
Common confusion: Often read as the total number of infections or unique people infected.
Comparison limit: Surveillance counts depend on reporting and do not correct for under-ascertainment.
Adding rule: Do not add confirmed or severe cases because they are subsets of suspected cases.
Related measures
includes subset:
Severe dengue cases. Severe cases are included within reported suspected cases.
not additive to:
Confirmed dengue cases. Adding confirmed cases to suspected cases would double count the confirmed subset.
not additive to:
Severe dengue cases. Adding severe cases to suspected cases would double count the severe subset.
event versus outcome:
Dengue deaths. Deaths are outcomes associated with reported cases, not another case category.
used to derive:
Confirmed share. The denominator is the suspected-case count.
used to derive:
Severe share. The denominator is the suspected-case count.
Related WSI content: Dengue in the Americas
Technical details
Stable measure ID: WSI-MEASURE-DENGUE-SUSPECTED-CASES
Registry version: WSI-SMR-v1.1.0
Source release: Reported dengue in the Americas, 2025 - validated WSI release v1.1
Source release ID: WSI-SOURCE-PAHO-DENGUE-AMERICAS-2025
Indicator code: Suspected cases
Output type: Source-reported surveillance count
Status: active
Link to this measure
Infectious diseaseeventsannual flow
Reported confirmed dengue cases
How many reported dengue cases were confirmed?
What it countsConfirmed case events within reported suspected cases
Unitreported cases
PopulationReported suspected cases with confirmation status
Geographic universeAmericas regional surveillance reporting universe
Time basisAnnual surveillance period
Official sourcePan American Health Organization
What to watch
Common confusion: Sometimes treated as an additional population beyond suspected cases.
Comparison limit: Confirmation practices and reporting can differ across settings.
Adding rule: Subset of suspected cases; do not add to the suspected total.
Related measures
not additive to:
Suspected dengue cases. Adding confirmed cases to suspected cases would double count the confirmed subset.
used to derive:
Confirmed share. The numerator is the confirmed-case count.
Related WSI content: Dengue in the Americas
Technical details
Stable measure ID: WSI-MEASURE-DENGUE-CONFIRMED-CASES
Registry version: WSI-SMR-v1.1.0
Source release: Reported dengue in the Americas, 2025 - validated WSI release v1.1
Source release ID: WSI-SOURCE-PAHO-DENGUE-AMERICAS-2025
Indicator code: Confirmed cases
Output type: Source-reported surveillance count
Status: active
Link to this measure
Infectious diseaseeventsannual flow
Reported severe dengue cases
How many reported dengue cases were classified as severe?
What it countsSevere case events within reported suspected cases
Unitreported cases
PopulationReported suspected dengue cases
Geographic universeAmericas regional surveillance reporting universe
Time basisAnnual surveillance period
Official sourcePan American Health Organization
What to watch
Common confusion: Sometimes added to suspected cases even though it is a subset.
Comparison limit: Severity classification depends on surveillance definitions and reporting.
Adding rule: Subset of suspected cases; do not add to the suspected total.
Related measures
not additive to:
Suspected dengue cases. Adding severe cases to suspected cases would double count the severe subset.
used to derive:
Severe share. The numerator is the severe-case count.
not directly comparable to:
Dengue deaths. Deaths and severe cases are different outcome and severity measures.
not directly comparable to:
Severe share. A share and a case count answer different questions.
Related WSI content: Dengue in the Americas
Technical details
Stable measure ID: WSI-MEASURE-DENGUE-SEVERE-CASES
Registry version: WSI-SMR-v1.1.0
Source release: Reported dengue in the Americas, 2025 - validated WSI release v1.1
Source release ID: WSI-SOURCE-PAHO-DENGUE-AMERICAS-2025
Indicator code: Severe cases
Output type: Source-reported surveillance count
Status: active
Link to this measure
Infectious diseasepeopleannual flow
Reported dengue deaths
How many dengue deaths were reported?
What it countsReported deaths
Unitdeaths
PopulationReported dengue deaths
Geographic universeAmericas regional surveillance reporting universe
Time basisAnnual surveillance period
Official sourcePan American Health Organization
What to watch
Common confusion: Deaths are sometimes treated as another mutually exclusive case category.
Comparison limit: A death count is an outcome measure and should be interpreted separately from case counts.
Adding rule: Do not add deaths to case counts to create a total burden.
Related measures
outcome versus event:
Suspected dengue cases. Deaths are outcomes associated with reported cases, not another case category.
not directly comparable to:
Severe dengue cases. Deaths and severe cases are different outcome and severity measures.
not directly comparable to:
Case-fatality rate. A rate and a death count answer different questions.
Related WSI content: Dengue in the Americas
Technical details
Stable measure ID: WSI-MEASURE-DENGUE-DEATHS
Registry version: WSI-SMR-v1.1.0
Source release: Reported dengue in the Americas, 2025 - validated WSI release v1.1
Source release ID: WSI-SOURCE-PAHO-DENGUE-AMERICAS-2025
Indicator code: Deaths
Output type: Source-reported outcome count
Status: active
Link to this measure
Infectious diseaserateperiod rate
Confirmed cases as share of suspected cases
What share of reported suspected cases were confirmed?
What it countsRatio of two reported case counts
Unitpercent
PopulationReported suspected dengue cases
Geographic universeAmericas regional surveillance reporting universe
Time basisAnnual surveillance period
Official sourceWSI arithmetic from PAHO controls
What to watch
Common confusion: Not a population incidence rate and not a separate count.
Comparison limit: Depends on surveillance confirmation practices and the suspected-case denominator.
Adding rule: A rate cannot be added to case counts.
Related measures
Related WSI content: Dengue in the Americas
Technical details
Stable measure ID: WSI-MEASURE-DENGUE-CONFIRMED-SHARE
Registry version: WSI-SMR-v1.1.0
Source release: Reported dengue in the Americas, 2025 - validated WSI release v1.1
Source release ID: WSI-SOURCE-PAHO-DENGUE-AMERICAS-2025
Indicator code: Confirmed / suspected
Output type: WSI-derived ratio from source counts
Status: active
Link to this measure
Infectious diseaserateperiod rate
Severe cases as share of suspected cases
What share of reported suspected cases were classified as severe?
What it countsRatio of severe case events to suspected case events
Unitpercent
PopulationReported suspected dengue cases
Geographic universeAmericas regional surveillance reporting universe
Time basisAnnual surveillance period
Official sourceWSI arithmetic from PAHO controls
What to watch
Common confusion: Not a population risk or incidence rate.
Comparison limit: Uses reported suspected cases as the denominator and does not adjust for under-ascertainment.
Adding rule: A rate cannot be added to case counts.
Related measures
not directly comparable to:
Severe dengue cases. A share and a case count answer different questions.
Related WSI content: Dengue in the Americas
Technical details
Stable measure ID: WSI-MEASURE-DENGUE-SEVERE-SHARE
Registry version: WSI-SMR-v1.1.0
Source release: Reported dengue in the Americas, 2025 - validated WSI release v1.1
Source release ID: WSI-SOURCE-PAHO-DENGUE-AMERICAS-2025
Indicator code: Severe / suspected
Output type: WSI-derived ratio from source counts
Status: active
Link to this measure
Infectious diseaserateperiod rate
Reported dengue case-fatality rate
How many reported deaths occurred relative to reported suspected cases?
What it countsRatio of reported deaths to reported suspected cases
Unitpercent
PopulationReported suspected dengue cases
Geographic universeAmericas regional surveillance reporting universe
Time basisAnnual surveillance period
Official sourcePAHO reported rate; WSI arithmetic reproduces the value
What to watch
Common confusion: Not a population mortality rate and not a count of deaths.
Comparison limit: Depends on both death reporting and the reported-case denominator.
Adding rule: A rate cannot be added to case counts or deaths.
Related measures
derived from:
Dengue deaths. The numerator is the reported death count.
not directly comparable to:
Dengue deaths. A rate and a death count answer different questions.
Related WSI content: Dengue in the Americas
Technical details
Stable measure ID: WSI-MEASURE-DENGUE-CASE-FATALITY-RATE
Registry version: WSI-SMR-v1.1.0
Source release: Reported dengue in the Americas, 2025 - validated WSI release v1.1
Source release ID: WSI-SOURCE-PAHO-DENGUE-AMERICAS-2025
Indicator code: Deaths / suspected
Output type: Source-reported rounded rate with reproducible arithmetic
Status: active
Link to this measure
Mortalitycountannual outcome count
Estimated under-five deaths
How many children were estimated to die before age 5?
What it countsEstimated deaths
Unitdeaths
PopulationLive-born children from birth to exact age 5
Geographic universeWorld and UN IGME reporting geographies
Time basisAnnual model estimate
Official sourceUN Inter-agency Group for Child Mortality Estimation
What to watch
Common confusion: Often added to neonatal deaths even though neonatal deaths are already included.
Comparison limit: A count describing total scale; it is not interchangeable with the probability per 1,000 live births.
Adding rule: Neonatal deaths are a subset; do not add them to under-five deaths.
Related WSI content: A falling rate can still mean millions of deaths
Technical details
Stable measure ID: WSI-MEASURE-UNIGME-U5-DEATHS
Registry version: WSI-SMR-v1.2.0
Status: Active; official source verified
Link to this measure
Mortalityrateperiod probability
Under-five mortality rate
What is the estimated probability of dying before age 5?
What it countsDeaths relative to live births
Unitdeaths per 1,000 live births
PopulationLive births under the period's mortality conditions
Geographic universeWorld and UN IGME reporting geographies
Time basisAnnual model estimate
Official sourceUN Inter-agency Group for Child Mortality Estimation
What to watch
Common confusion: Sometimes read as a percentage or added to neonatal mortality rate.
Comparison limit: The live-birth denominator changes the question; use the death count to understand total scale.
Adding rule: Do not add to NMR or to any death count.
Related WSI content: A falling rate can still mean millions of deaths
Technical details
Stable measure ID: WSI-MEASURE-UNIGME-U5MR
Registry version: WSI-SMR-v1.2.0
Status: Active; official source verified
Link to this measure
Mortalitycountannual outcome count
Estimated neonatal deaths
How many deaths were estimated during the first 28 days of life?
What it countsEstimated deaths
Unitdeaths
PopulationLive-born children from birth to exact day 28
Geographic universeWorld and UN IGME reporting geographies
Time basisAnnual model estimate
Official sourceUN Inter-agency Group for Child Mortality Estimation
What to watch
Common confusion: Often treated as additional to under-five deaths.
Comparison limit: This is an age-defined subset inside the under-five death count.
Adding rule: Subset of under-five deaths; never add to the under-five total.
Related WSI content: A falling rate can still mean millions of deaths
Technical details
Stable measure ID: WSI-MEASURE-UNIGME-NEONATAL-DEATHS
Registry version: WSI-SMR-v1.2.0
Status: Active; official source verified
Link to this measure
Mortalityrateperiod probability
Neonatal mortality rate
What is the estimated probability of dying during the first 28 days?
What it countsDeaths relative to live births
Unitdeaths per 1,000 live births
PopulationLive births under the period's neonatal mortality conditions
Geographic universeWorld and UN IGME reporting geographies
Time basisAnnual model estimate
Official sourceUN Inter-agency Group for Child Mortality Estimation
What to watch
Common confusion: Sometimes subtracted from or added to U5MR as though the marginal probabilities were components.
Comparison limit: The age interval is nested within U5MR, but the published rates must not be naively added or subtracted.
Adding rule: Do not add to U5MR or to a death count.
Related WSI content: A falling rate can still mean millions of deaths
Technical details
Stable measure ID: WSI-MEASURE-UNIGME-NMR
Registry version: WSI-SMR-v1.2.0
Status: Active; official source verified
Link to this measure
Mortalitysharecomposition share
Neonatal share of under-five deaths
What share of under-five deaths occurred in the first 28 days?
What it countsShare of a death total
Unitpercent of under-five deaths
PopulationEstimated under-five deaths in the same year and UN IGME vintage
Geographic universeWorld in this Visual Brief
Time basisAnnual derived share
Official sourceWSI derivation from UN IGME point estimates
What to watch
Common confusion: A rising share can be misread as a rising neonatal death count.
Comparison limit: The share can rise while both neonatal and total under-five deaths fall.
Adding rule: The share describes the composition of under-five deaths; it is not added to the count.
Related WSI content: A falling rate can still mean millions of deaths
Technical details
Stable measure ID: WSI-MEASURE-UNIGME-NEONATAL-SHARE
Registry version: WSI-SMR-v1.2.0
Status: Active; official source verified
Link to this measure
Mortalitytrend statisticrate of change
Annual rate of reduction in child mortality
How quickly did a child mortality rate decline over the stated interval?
What it countsAverage annual pace of change
Unitpercent per year
PopulationThe underlying global U5MR or NMR series over the stated interval
Geographic universeWorld in this Visual Brief
Time basisMulti-year interval
Official sourceUN Inter-agency Group for Child Mortality Estimation
What to watch
Common confusion: Sometimes read as a mortality rate or as evidence of a particular cause.
Comparison limit: ARR describes pace, not level, total deaths, or causation.
Adding rule: Do not add to rates, counts, or shares.
Related WSI content: A falling rate can still mean millions of deaths
Technical details
Stable measure ID: WSI-MEASURE-UNIGME-CHILD-ARR
Registry version: WSI-SMR-v1.2.0
Status: Active; official source verified
Link to this measure
Mortalitycountannual outcome count
Estimated maternal deaths
How many women were estimated to die from maternal causes during the year?
What it countsEstimated deaths
Unitdeaths
PopulationWomen dying while pregnant or within 42 days of pregnancy termination from related or aggravated causes, excluding incidental causes
Geographic universe195 countries and territories in the revised MMEIG 2000-2023 release
Time basisAnnual model estimate
Official sourceMaternal Mortality Estimation Inter-Agency Group
What to watch
Common confusion: Sometimes combined with child deaths or treated as the numerator alone for cross-setting risk comparison.
Comparison limit: Use MMR for deaths relative to live births; keep 2023 maternal deaths separate from 2024 child deaths.
Adding rule: Do not combine with child mortality counts in this brief.
Related WSI content: A falling rate can still mean millions of deaths
Technical details
Stable measure ID: WSI-MEASURE-MMEIG-MATERNAL-DEATHS
Registry version: WSI-SMR-v1.2.0
Status: Active; official source verified
Link to this measure
Mortalityratioperiod ratio
Maternal mortality ratio
What is the estimated maternal-death burden relative to live births?
What it countsMaternal deaths relative to live births
Unitmaternal deaths per 100,000 live births
PopulationMaternal deaths and live births in the same population and year
Geographic universe195 countries and territories in the revised MMEIG 2000-2023 release
Time basisAnnual model estimate
Official sourceMaternal Mortality Estimation Inter-Agency Group
What to watch
Common confusion: Often called a rate, read as a percentage, or treated as a count.
Comparison limit: MMR uses 100,000 live births as its denominator and is not the same construct as adult lifetime risk.
Adding rule: Do not add to any child mortality rate, count, or lifetime risk.
Related WSI content: A falling rate can still mean millions of deaths
Technical details
Stable measure ID: WSI-MEASURE-MMEIG-MMR
Registry version: WSI-SMR-v1.2.0
Status: Active; official source verified
Link to this measure
Mortalityprobabilitylifetime probability
Adult lifetime risk of maternal death
What is the estimated lifetime probability of maternal death under current conditions?
What it countsProbability over the remaining lifetime
Unitprobability, commonly expressed as 1 in N
PopulationGirls age 15 under the reference year's mortality and fertility conditions
Geographic universe195 countries and territories in the revised MMEIG 2000-2023 release
Time basisPeriod life-table estimate
Official sourceMaternal Mortality Estimation Inter-Agency Group
What to watch
Common confusion: Often treated as a simple rescaling of MMR.
Comparison limit: Lifetime risk depends on fertility and competing mortality as well as MMR.
Adding rule: Do not add to MMR, maternal deaths, or child mortality indicators.
Related WSI content: A falling rate can still mean millions of deaths
Technical details
Stable measure ID: WSI-MEASURE-MMEIG-LIFETIME-RISK
Registry version: WSI-SMR-v1.2.0
Status: Active; official source verified
Link to this measure
Mortalitytrend statisticrate of change
Annual rate of reduction in maternal mortality ratio
How quickly did MMR decline, or how quickly would it need to decline for a stated target scenario?
What it countsAverage annual pace of change
Unitpercent per year
PopulationThe global MMR series or a target-consistent scenario over the stated interval
Geographic universeWorld in this Visual Brief
Time basisMulti-year interval
Official sourceMaternal Mortality Estimation Inter-Agency Group
What to watch
Common confusion: The 14.8% required pace can be misread as a forecast.
Comparison limit: Historical ARR and required ARR answer different questions; the required value is a scenario, not a projection.
Adding rule: Do not add to MMR or death counts.
Related WSI content: A falling rate can still mean millions of deaths
Technical details
Stable measure ID: WSI-MEASURE-MMEIG-MMR-ARR
Registry version: WSI-SMR-v1.2.0
Status: Active; official source verified
Link to this measure
Mortalitytargettarget threshold
SDG 3.1 global maternal mortality target
What global MMR threshold is specified for 2030?
What it countsTarget threshold
Unitmaternal deaths per 100,000 live births
PopulationGlobal maternal mortality ratio
Geographic universeWorld
Time basis2030 target
Official sourceUnited Nations Sustainable Development Goal 3.1
What to watch
Common confusion: Sometimes drawn as though it were a forecasted 2030 estimate.
Comparison limit: The target provides a benchmark in the same unit as MMR; it is not an observed or forecast value.
Adding rule: Do not add to MMR or any count.
Related WSI content: A falling rate can still mean millions of deaths
Technical details
Stable measure ID: WSI-MEASURE-SDG-MMR-TARGET
Registry version: WSI-SMR-v1.2.0
Status: Active; official source verified
Link to this measure