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Table 4 Distribution of cognitive status and subcategories of CIND and dementia

From: Prevalence and pattern of cognitive impairment in rural and urban populations from Northern Portugal

Cognitive status N % R:U F:M Age (years) Education (years) MMSE score
NCI 974   0.94 0.96 66.2 (5) 4.0 (1) 28.0 (2)
CIND 141   1.3 1.5 69.9 (6) 3.0 (2) 22.0 (3)
   General vascular 36 25.5 1.1 1.8 70.1 (7) 3.0 (2) 23.5 (3)
   Depression 26 18.4 1.1 8.1 69.6 (4) 3.0 (2) 23.0 (2)
   Cerebrovascular 20 14.2 1.4 1.3 69.7 (5) 3.0 (2) 22.5 (4)
   Alcohol abuse 13 9.2 3.3 0.1 69.5 (5) 1.0 (2) 19.0 (3)
   Traumatic brain injury 11 7.8 0.7 0.4 68.6 (7) 2.0 (2) 22.0 (3)
   Sociocultural 8 5.7 8|0 8|0 75.2 (5) 0.5 (1) 18.0 (3)
   Other neurological 8 5.7 0.6 1.1 73.4 (3) 4.0 (3) 26.0 (4)
   Mental retardation 7 5.0 1.5 7|0 65.4 (8) 0.0 (0) 14.0 (3)
   Psychiatric 6 4.3 1.2 0.7 67.0 (7) 4.0 (3) 26.0 (3)
   No other condition 6 4.3 1.2 3.4 66.9 (8) 2.5 (2) 23.5 (4)
Dementia 31   2.1 0.7 73.9 (4) 2.0 (2) 17.0 (4)
   AD 12 38.7 3.0 2.0 75.0 (7) 2.0 (2) 18.5 (5)
   Vascular 12 38.7 1.8 0.3 70.4 (4) 2.5 (2) 17.0 (4)
   Alcohol 2 6.5 0.6 0|2 75.2 (4) 0.5 (1) 18.0 (3)
   Parkinson 1 3.2 1|0 1|0 74.1 3.0 20.0
   Rapidly progressive 1 3.2 1|0 0|1 71.5 11.0 24.0
   Unclassifiable 3 12.9 3|0 1.4 76.7 (2) 1.0 (2) 12.0 (6)
  1. R:U - rural urban prevalence ratio; F:M - female/male prevalence ratio; median and interquartile deviation for other variables; whenever category is empty the ratio is indicated by a vertical line (|); MMSE: Mini Mental State Examination