Some hospitals do track dementia related admissions. Only a few tertiary referral hospitals maintain dementia registries that record and report on the dementia patients that have been seen in these specialist memory/cognitive disorders clinics. These centres typically conduct scientific studies that report on clinical profiles and risk factors of dementia or specific subtypes of dementia (Alladi et al., 2011; Alladi et al., 2014; Bharath et al., 2017; Nair et al., 2012; Tripathi et al., 2012). However, these registries do not periodically report the numbers of persons with dementia evaluated in the clinics.

References:

Alladi, S., Mekala, S., Chadalawada, S.K., Jala, S., Mridula, R., Kaul, S., 2011. Subtypes of Dementia: A Study from a Memory Clinic in India. Dement. Geriatr. Cogn. Disord. 32, 32–38. https://doi.org/10.1159/000329862

Alladi, S., Shailaja, M., Mridula, K.R., Haritha, C.A., Kavitha, N., Khan, S.A., Divyaraj, G., Kaul, S., 2014. Mild Cognitive Impairment: Clinical and Imaging Profile in a Memory Clinic Setting in India. Dement. Geriatr. Cogn. Disord. 37, 113–124. https://doi.org/10.1159/000354955

Bharath, S., Sadanand, S., Kumar, K.J., Balachandar, R., Joshi, H., Varghese, M., 2017. Clinical and neuropsychological profile of persons with mild cognitive impairment, a hospital based study from a lower and middle income country. Asian J. Psychiatr. 30, 185–189. https://doi.org/10.1016/j.ajp.2017.10.007

Nair, G., Van Dyk, K., Shah, U., Purohit, D.P., Pinto, C., Shah, A.B., Grossman, H., Perl, D., Ganwir, V., Shanker, S., Sano, M., 2012. Characterizing Cognitive Deficits and Dementia in an Aging Urban Population in India. Int. J. Alzheimers. Dis. 2012, 1–8. https://doi.org/10.1155/2012/673849

Tripathi, M., Vibha, D., Gupta, P., Bhatia, R., Srivastava, M.V.P., Vivekanandhan, S., Bhushan Singh, M., Prasad, K., Dergalust, S., Mendez, M.F. (2012). Risk factors of dementia in North India: a case–control study. Aging Ment. Health 16, 228–235. https://doi.org/10.1080/13607863.2011.583632