Global Impact Atlas & Models
Global Impact Atlas · reviewed data snapshot 18 Aug 2026
Local data first. Assumptions only where the data stop.
The Global Impact model now separates epidemiology, clinical addressability, real-world reach and assumed treatment effect. The atlas covers the USA, China, Taiwan, Qatar, the EU member states, Germany by Bundesland, China by province, Switzerland, the United Kingdom, the United Arab Emirates (with Dubai-specific context where available), Saudi Arabia, India, Brazil, New Zealand, Australia, Japan, South Korea, Canada, Mexico and Argentina. Every default retains its provenance: SOURCED, DERIVED, TRANSFERRED, ASSUMPTION, HISTORICAL or DATA GAP. Transferred values are comparison proxies, not national epidemiology.
Clickable evidence map
Click a country. Drill into Germany or China.
Map fill intensity represents the selected metric when a numeric default exists. The source-quality badge remains separate so a large derived estimate is never visually mistaken for a measured registry count. Switch between absolute annual counts and rates where the denominator is meaningful.
What changed from the previous model
Better local defaults — and clearer research targets.
| Region | OHCA default | Thrombectomy default | HIE default | Heat stroke | Severe TBI | Concussion |
|---|
Interactive societal impact & break-even lab
Source default → addressability → reach → effect → societal value.
Select a region from the map or dropdown. Sourced and locally derived denominators can load as defaults. TRANSFERRED comparison proxies are deliberately not activated automatically; the visitor must explicitly choose “Use transferred proxy”. If no compatible denominator exists, enter a scenario value and it will be marked USER INPUT while the original data gap remains visible.
Subnational methodology
Germany and China: direct overrides beat national scaling.
Germany · 16 Bundesländer
2025 state populations are sourced from Destatis. Germany now uses the SOURCED national 2024 EMS-resuscitation frame rather than the old transferred European 55/100,000 proxy: ≈136,000 OHCA events overall and ≈54,000–67,000 EMS resuscitation attempts depending on register/reference extrapolation, with the later nationwide communication using ≈67,000. Until state-specific clinical counts are loaded, Bundesland OHCA values are only a DERIVED population-share allocation of the ≈67,000 national EMS-resuscitation frame. Thrombectomy likewise remains a DERIVED population-share allocation of the sourced German 2024 total of 21,609. Neither is a measured state volume. Reimbursement uses a different geography: procurement and fee planning should ultimately drill down to Landkreise, kreisfreie Städte and other responsible rescue-service bodies rather than treating the Bundesland epidemiology layer as the payment layer. Open the reimbursement atlas →
China · 31 province-level regions
2024 population and crude birth rates come from the NBS Statistical Yearbook 2025. Where no provincial clinical registry value is available, OHCA uses the national BASIC-OHCA rate/attempt fraction and MT uses the national stroke-centre procedure rate as explicit DERIVED placeholders. Zhejiang OHCA and Guangdong MT override those placeholders with direct regional evidence.
NBS Statistical Yearbook 2025 · Zhejiang OHCA · Guangdong thrombectomy
EU · all 27 member states
Country populations use the 2025 Eurostat population dataset. Outside national direct sources, the clickable member-state map uses EU-level OHCA and thrombectomy rates only as TRANSFERRED comparison proxies. The OHCA proxy is 55/100,000 and is not considered interchangeable with the previously used 89/100,000 figure because the underlying Utstein/registry denominator may differ. These proxies are not national registry epidemiology and are not auto-loaded into the calculator.
HIE needs ranges, not a magic point
The USA uses a clinically reviewed population-based rate around 1.7/1,000 births. China is shown with a 3–6/1,000 literature range and a 4.5/1,000 midpoint only as an ASSUMPTION for model conversion. Other markets retain a visible gap or transferred planning rate until a comparable local source is loaded.
Research-draft status
What is strong — and what the next data work will complete.
USA. CARES provides a strong 2024 OHCA denominator; the national MT estimate remains older (2021). HIE now uses a local clinically reviewed incidence rather than the previous generic 1.5/1,000 assumption. Severe heatstroke, severity-specific TBI and community concussion remain data gaps. CARES/AHA · HIE
China. National OHCA attempted is derived from BASIC-OHCA; the thrombectomy default is updated to 81,865 procedures in reporting stroke centres (2023), replacing the older 104,704 arithmetic estimate. BASIC-OHCA · China Stroke Report
Germany. The 2024 denominator layer is now versioned by definition: ≈136,000 all-OHCA events, ≈54,000–67,000 EMS resuscitation attempts depending on register/reference extrapolation, and ≈67,000 in the later nationwide communication. These are not interchangeable with the site’s narrower addressability assumptions. Mechanical thrombectomy is 21,609 in 2024; a separate DRG series reported 22,445 in 2023, so methodology/vintage are retained. HIE is shown as ≈981 only as a DERIVED 2025 birth-based frame, alongside the historical German observation of median 543 HIE/year in 2010–2017. Severe TBI remains HISTORICAL/DERIVED: ≈8,220 observed cases/year in 2013–2017, with 13.6/100,000 estimated after correction. German OHCA 2024 · German MT 2024 · German HIE · TBI source
Canada. About 60,000 OHCA/year is a sourced national magnitude. CCDSS reports 97,010 strokes in adults in 2023/24, but this is not an EVT count, so thrombectomy remains a data gap instead of being inferred from all stroke. Heart & Stroke · CCDSS
UAE & Dubai. The register now carries the official system context without converting it into clinical counts: UAE population ~11.29m in 2024 and 18,685 inpatient beds (~1.66/1,000); Dubai resident population ~4.471m in Q3 2025. OHCA, EVT, HIE, severe heatstroke, severe TBI and concussion remain denominator-specific data gaps until DHA/DCAS/MOHAP extracts are available. MOHAP Open Data · DHA Open Data
Saudi Arabia. Population is now framed at ~35.3m for 2024. The SOHAR registry is retained as regional evidence (3,671 OHCA cases across selected regions, 2019–2022), not a national incidence estimate; national SRCA/MOH and claims extracts remain the next step. SOHAR · GASTAT
Japan. Population is ~123.05m in the 2025 research frame. FDMA now provides a national 2023 cardiac-arrest system denominator: 140,575 transported cardiopulmonary-arrest patients, including 90,550 cardiogenic cases. This is a sourced national EMS-system count, but it is not definition-equivalent to German EMS resuscitation attempts and is not an AIRCHILL-eligible population. National EVT remains a targeted MHLW NDB procedure extraction. FDMA 2023 cardiac-arrest data · MHLW NDB Open Data
South Korea. The previous generic gap has been replaced for OHCA: national surveillance reported 33,586 OHCA cases transported by 119 EMS in 2023. With the 2025 population frame, the atlas can calculate a system rate while keeping AIRCHILL addressability separate. EVT remains a targeted HIRA/NHIS claims extraction. National OHCA surveillance · HIRA
Brazil, New Zealand & Australia. Population denominators are now loaded so existing sourced/derived clinical frames can be rate-normalised: Brazil 213.421m (2025), New Zealand ~5.325m (Jun 2025), Australia ~27.5m research frame. Broad TBI, heat and hospital-only concussion measures keep their phenotype warnings and are not relabelled as device-eligible populations.
UK. OHCAO, SSNAP, HES and TARN are the preferred next extraction paths. A historical OHCA magnitude can be displayed as HISTORICAL/ASSUMPTION, but current MT, severe TBI and community concussion stay open until denominator-compatible extracts are loaded. OHCAO · SSNAP
India, Mexico, Argentina. Public national denominators are currently insufficient for several models. The atlas therefore shows gaps instead of scaling foreign incidence rates to very large populations. Local registry/authority outreach is the next step. India OHCA review · Mexico OHCA literature · Argentina stroke programme
Heatstroke. This remains one of the largest denominator gaps. The productive hierarchy is: local severe heatstroke count → T67.0 hospitalizations → ICU/organ-failure subset → only then a standardized per-100 sensitivity. CDC heat surveillance · Destatis diagnosis data
The chain, drawn: source cohort to societal value
The left panel is the funnel the fields above define. The right panel shows where the money goes in one year at those settings. Both redraw on every change, and both are the same arithmetic as the result table — no extra assumptions.
Value figures only appear once a value per outcome is set. Everything here inherits the evidence quality of the source cohort shown above the table — a transferred or modelled default stays transferred or modelled after it has been multiplied.