Westminster local authority · 2021
The missing millions — locally
7.7%
Adults estimated to have undiagnosed hypertension.
Estimated prevalence of undiagnosed adult hypertension · Persons, 16+ yrs
England: 8.6% · 2021
healthcards · Westminster · 2021
What this means
An estimated 13,761 adults in Westminster have high blood pressure without knowing it — on top of those diagnosed. That is why blood-pressure checks in pharmacies, GP surgeries and community events matter.
95% confidence interval: 7.3–8.4 %. Source population denominator: 178,957 (Persons, 16+ yrs); this measure is modelled, not a direct count of cases.
Fingertips marks this indicator Not compared to England — shown for context only.
Recorded value (Westminster)
- 2021: 7.7%
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Source & provenance
- Indicator:
- Estimated prevalence of undiagnosed adult hypertension (ID 94111)
- Source:
- OHID, based on ONS and NHS England data (Health Survey for England modelling)
- Area:
- Westminster (E09000033), Upper-tier local authority (post Apr 2023)
- Period:
- 2021; retrieved 2026-10-13 (distinct from reporting period)
- Population:
- Persons, 16+ yrs
- Note:
- Modelled estimate from Health Survey for England, applied to 2021.
Caveats
- A 2021 modelled estimate. Treat as a ballpark, not a precise count.
- Built from Health Survey for England blood-pressure measurements and reported diagnosis, then modelled to local populations.
- Blood-pressure threshold used: 140/90 mmHg or above.
- Lower means fewer adults walking around with unknown high blood pressure.
Missing or suppressed values are never shown as zero — every card above passed validation with a real numeric value.