Inferred relative Parkinson's prevalence in England

Method in one paragraph

The original study used public prescription and practice-location data to estimate relative Parkinson's prevalence by geography. Prescription activity was treated as a proxy rather than a direct case count, so the result is exploratory and directional rather than definitive.

Why it matters

Even imperfect spatial signals can help point toward places where demographics, service access, prescribing patterns, or environmental factors deserve a closer look.

Caveats

• Prescription counts are only a proxy.
• Local prescribing habits can distort the signal.
• Patient residence and surgery location may differ.
• Age structure and case mix are not directly controlled.