cohort·neurology, geriatrics, epidemiology, public health·PMC10338640
Prevalence of dementia in India: National and state estimates from a nationwide study
Alzheimer's & dementia : the journal of the Alzheimer's Association · 38 authors, 23 centres
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This study estimated the nationwide prevalence of dementia among adults aged 60 and older in India using a large, population-based sample. The central result is that 7.4% of this age group has dementia, representing an estimated 8.8 million individuals, with significant variation based on age, education, sex, and state.
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Prevalence was higher in women (9.0% vs. 5.8%), rural areas (8.4% vs. Significant cross-state variation was observed, ranging from 4.5% in Delhi to 11.0% in Jammu and Kashmir, though this was largely attributable to demographic differences. Limitations include that the clinical consensus subsample did not provide state-level representation and involved clinician adjudication without in-person examination. The findings indicate a substantial and growing burden, with a projected 16.9 million cases by 2036, highlighting the need for localized planning and support.
