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. Author manuscript; available in PMC: 2023 Aug 21.
Published in final edited form as: Alzheimers Dement. 2023 Jan 13;19(7):2898–2912. doi: 10.1002/alz.12928

TABLE 3.

Comparison of state- and urbanicity-specific estimates of dementia prevalence to those of prior studies

Authors Year Geographic location,
state		 Age Sample
size		 Diagnostic
criteria		 Prevalence 95% CI Diff
(P < 0.05)
Urban
 Vas et al.29 2001 Mumbai, Maharashtra 65+ 24,488 DSM-IV 2.3 1.8–2.8
 Shaji et al.31 2005 Ernakulam, Kerala 65+ 1934 DSM-IV 3.4 2.7–4.1 *
 Das et al.32 2006 Kolkata, West Bengal 60+ 5430 DSM-IV 1.0 0.8–1.3 *
 Rodriguez et al.36 2008 Chennai, Tamil Nadu 65+ 1005 DSM-IV 0.9 0.3–1.5 *
  10/66 dementia 7.5 5.8–9.1
 Mathuranath et al.37 2010 Trivandrum, Kerala 65+ 1672 DSM-IV 4.9 3.8–5.9
 Seby etal.38 2011 Pune, Maharashtra 65+ 202 ICD-10 14.9 NR
 Banerjee et al.33 2017 Kolkata, West Bengal 50+ 17,584 DSM-IV 1.3 1.1–1.6 *
 LASI 2017–2020 All India 60+ 10,756 CDR>=1 5.3 4.3–6.4
  Kerala 60+ 570 CDR>=1 7.8 4.6–11.0
  Maharashtra 60+ 848 CDR>=1 5.0 2.7–7.4
  Tamil Nadu 60+ 871 CDR>=1 4.1 2.3–6.0
  West Bengal 60+ 776 CDR>=1 5.6 3.6–7.7
Rural
 Shaji et al.39 1996 Ernakulam, Kerala 60+ 2067 DSM-IIIR 3.2 Not Reported
 Rajkumar et al.30 1997 Thiroporur, Tamil Nadu 60+ 750 ICD-10 3.5 2.2–4.8
 Chandra et al.34 1998 Ballabgarh, Haryana 65+ 3869 DSM-IV, CDR > = 0.5 1.4 1.0–1.9 *
 Rodriguez et al.36 2008 Vellore, Tamil Nadu 65+ 999 DSM-IV 0.8 0.2–1.3 *
  10/66 dementia 10.6 8.6–12.6
 Tiwari et al.35 2013 Lucknow, Uttar Pradesh 60+ 2146 ICD-10 2.8 2.0–3.9 *
 Gurukartick et al.40 2016 Villupuram district, Tamil Nadu 65+ 1300 DSM-IV 3.1 NR
 LASI 2017–2020 All India 60+ 20,721 CDR>=1 8.4 7.1–9.6
  Haryana 60+ 600 CDR>=1 6.2 3.5–8.8
  Kerala 60+ 640 CDR>=1 8.7 5.0–12.4
  Tamil Nadu 60+ 663 CDR>=1 7.8 4.6–11.0
  Uttar Pradesh 60+ 1740 CDR>=1 8.4 6.2–10.7

Note:

*

Indicates prior study’s estimate is outside of the 95% CI of the state- and urbanicity-specific estimates from LASI.

Abbreviations: CDR, Clinical Dementia Rating;19 CI, confidence interval; DSM-IV, the Diagnostic and Statistical Manual of Mental Disorders, 4th edition;43 DSM-IIIR, Psychiatry Diagnostic & Statistical Manual of Mental Disorders, 3rd edition Revised;41 ICD-10, International Classification of Disease, the 10th revision;42 LASI, Longitudinal Aging Study in India; NR, not reported; 10/66 dementia, the 10/66 dementia algorithm.44