Prevalence by age/gender

The GBD (India State-Level Disease Burden Initiative Neurological Disorders Collaborators, 2021) study provides a breakdown of dementia prevalence as per age and gender, demonstrating higher prevalence of dementia among women than men in India. This is available on Page 125 of the Supplementary document: https://www.thelancet.com/cms/10.1016/S2214-109X(21)00164-9/attachment/26ff536c-3eec-45f7-897a-183dc4e7777e/mmc1.pdf

Prevalence by ethnic groups

The prevalence of dementia across ethnic groups has not been widely studied in India. One study conducted in the state of Jammu and Kashmir examined the prevalence of dementia among the ethnic Dogra population compared to the migrant Kashmiri Pandit population (Raina, Razdan and Pandita, 2010; Raina et al., 2008). The study reported overall prevalence of dementia in those aged 60 and over as 1.83% in the ethnic Dogra population, which was lower than the prevalence rate among the migrant Kashmiri Pandits (6.5%) reported in an earlier study (Raina, Razdan and Pandita, 2010, Raina et al., 2008).

References:

India State-Level Disease Burden Initiative Neurological Disorders Collaborators (2021). The burden of neurological disorders across the states of India: The Global Burden of Disease Study 1990-2019. The Lancet. Global health, 9(8), e1129–e1144.

Raina, S. K., Razdan, S., & Pandita, K. K. (2010). Prevalence of dementia in ethnic Dogra population of Jammu district, North India: a comparison survey. Neurology Asia, 15(1).

Raina, S., Raina, S., Razdan, S., & Pandita, K. (2008). Prevalence of dementia among Kashmiri migrants. Annals of Indian Academy of Neurology, 11(2), 106. https://doi.org/10.4103/0972-2327.41878