Essex county · 2021
The missing millions — locally
8.9%
Adults estimated to have undiagnosed hypertension.
Estimated prevalence of undiagnosed adult hypertension · Persons, 16+ yrs
England: 8.6% · 2021
healthcards · Essex · 2021
What this means
An estimated 109,432 adults in Essex 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: 8.5–9.6 %. Source population denominator: 1,227,267 (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 (Essex)
- 2021: 8.9%
Share this card
Share a link or download an image to post or send. Each image includes the area, reporting period, statistic and source.
/essex/cards/undiagnosed-hypertension
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:
- Essex (E10000012), 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.