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Table 2 Mean (standard error) of MMSE scores for the DYNOPTA baseline population and NSMH (aged 65+) as a whole, by gender and by age cohort

From: Estimates of probable dementia prevalence from population-based surveys compared with dementia prevalence estimates based on meta-analyses

   DYNOPTA 97NSMH 07NSMH
Age Groups   N Mean Std. Err 95% Conf. Interval N Mean Std. Err 95% Conf. Interval N Mean Std. Err 95% Conf. Interval
65-69 Total 441 28.73 0.13 28.48 - 28.98 576 27.71*** 0.14 27.09 - 28.34 636 28.70 0.08 28.49 - 28.90
  Males 162 28.69 0.17 28.35 - 29.04 283 27.28** 0.18 26.37 - 28.20 333 28.62 0.10 28.28 - 28.96
  Females 279 28.77 0.20 28.38 - 29.16 293 28.16 0.17 27.68 - 28.63 303 28.76 0.11 28.50 - 29.03
70-74 Total 931 27.58 0.12 27.34 - 27.82 499 27.20 0.16 26.49 - 27.92 468 28.39* 0.10 28.14 - 28.64
  Males 483 27.43 0.12 27.19 - 27.67 200 26.80* 0.28 25.93 - 27.66 241 28.30 0.14 28.01 - 28.60
  Females 448 27.71 0.18 27.35 - 28.07 299 27.49 0.19 26.75 - 28.22 227 28.47 0.14 28.14 - 28.80
75+ Total 2536 26.27 0.09 26.08 - 26.45 713 26.40 0.17 24.94 - 27.87 801 27.90** 0.09 27.69 - 28.11
  Males 1309 26.35 0.11 26.14 - 26.56 245 26.36 0.33 24.41 - 28.30 330 27.75 0.14 27.36 - 28.15
  Females 1227 26.22 0.13 25.97 - 26.47 468 26.43 0.19 25.14 - 27.71 471 28.02 0.11 27.78 - 28.26
75-79 Total 1099 26.98 0.11 26.76 - 27.21      444 28.07** 0.12 27.97 - 28.16
  Males 589 26.95 0.14 26.68 - 27.22      198 27.82* 0.19 27.67 - 27.97
  Females 510 27.01 0.16 26.69 - 27.33      246 28.26 0.15 28.15 - 28.38
80-84 Total 797 26.06 0.17 25.73 - 26.39      357 27.77** 0.13 27.67 - 27.87
  Males 412 26.04 0.20 25.64 - 26.44      132 27.86 0.19 27.71 - 28.02
  Females 385 26.07 0.24 25.61 - 26.54      225 27.72 0.17 27.58 - 27.85
85-89 Total 458 25.35 0.21 24.94 - 25.76         
  Males 246 25.19 0.27 24.66 - 25.73         
  Females 212 24.43 0.28 24.88 - 25.98         
90-94 Total 140 24.26 0.41 23.46 - 25.06         
  Males 52 23.35 0.84 21.69 - 25.00         
  Females 88 24.53 0.46 23.63 - 25.42         
90+ Total 182 23.48 0.39 22.71 - 24.24         
  Males 62 23.15 0.75 21.67 - 24.63         
  Females 120 23.56 0.45 22.68 - 24.43         
95+ Total 42 21.20 0.87 19.50 - 22.91         
  Males 10 22.03 1.84 18.36 - 25.69         
  Females 32 21.10 0.94 19.25 - 22.95         
  1. * p < .05; ** p < .001 t-test analyses between gender were computed within each study for each Age Group category. t-test analyses for between DYNOPTA and both NSMH surveys were computed for total within each Age Group category.