Catchment map and bias governance
Where a person lives changes what the data can see. This panel makes social context and model equity visible instead of leaving them implicit.
Catchment map
Synthetic neighbourhoods shaded by area deprivation decile. Select an area to see its care-navigation flags.
Riverbend East
Automatic navigation flags raised for this synthetic area.
- Transport access
- low
- Language support need
- high
- Connectivity
- 68% household coverage (synthetic)
Navigation flags describe services to consider with the person. They are not triage, and they never decide care.
Bias and fairness auditing board
Model performance by demographic segment on synthetic evaluation data. Read-only: changes are made through the Governance Studio.
Age band
synthetic evaluation set- 18–39recall 84% · false alerts 9% · n=1240
- 40–64recall 82% · false alerts 11% · n=3110
- 65–79recall 78% · false alerts 14% · n=2480
- 80+recall 69% · false alerts 19% · n=940
Recall falls in the oldest band, where baseline vital signs differ most from the training population.
Recorded race or ethnicity group
synthetic evaluation set- Group Arecall 83% · false alerts 10% · n=3600
- Group Brecall 76% · false alerts 15% · n=1180
- Group Crecall 71% · false alerts 17% · n=640
- Not recordedrecall 66% · false alerts 21% · n=350
Segments with fewer synthetic records show wider uncertainty. Visual grading is a known weakness across skin tones.
Sex or gender recorded
synthetic evaluation set- Femalerecall 81% · false alerts 12% · n=3900
- Malerecall 80% · false alerts 12% · n=3700
- Other or not recordedrecall 72% · false alerts 18% · n=170
Difference is small in this synthetic extract but is monitored each cycle rather than assumed stable.
Area deprivation decile
synthetic evaluation set- Decile 1–3 (most deprived)recall 72% · false alerts 18% · n=1900
- Decile 4–7recall 80% · false alerts 13% · n=3400
- Decile 8–10recall 85% · false alerts 9% · n=2470
Lower recall in the most deprived deciles tracks with sparser monitoring data, not with biology.
⚠️ Make sure to double-check the physical patient presentation to confirm this information.
Override activity
Overrides recorded by nurses feed the equity review: repeated overrides in one segment are a bias signal.
No overrides recorded yet in this browser.