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Table 1 Sample characteristics of DYNOPTA, the 97 NSMH and 07 NSMH

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

  DYNOPTA 97NSMH 07NSMH
Total N 3908 1788 1905
Gender (n, %)    
   Male 1954 (50.0%) 728 (40.7%) 904 (47.5%)
   Female 1954 (50.0%) 1060 (59.3%) 1001 (52.5%)
Age (n, %)    
   65-69 441 (11.3%) 576 (32.2%) 636 (33.4%)
   70-74 931 (23.8%) 499 (27.9%) 468 (24.6%)
   75+ 2536 (64.9%) 713 (39.9%) 801 (42.0%)
   75-79 1099 (28.1%) - 444 (23.3%)
   80-84 797 (20.4%) - 357 (18.7%)
   85-89 458 (11.7%) - -
   90-94 140 (3.6%) - -
   95+ 42 (1.1%) - -
Education (n, %)    -
   no formal education 14 (0.4%) - -
   some or all of primary school or secondary school 2172 (55.6%) - -
   non-tertiary study (i.e. apprenticeship/trade, certificate, undergraduate diploma 1137 (29.1%) - -
   tertiary study (bachelor degree, post-graduate diploma, higher degree) 321 (8.2%) - -
   Missing - No Response/Educated Overseas 264 (6.8%) - -
Finished secondary school    
   Yes - 502 (28.1%) 420 (22.0%)
   No - 1286 (71.9%) 1485 (78.0%)