Table 1 Sample characteristics of DYNOPTA, the 97 NSMH and 07 NSMH
| Â | DYNOPTA | 97NSMH | 07NSMH |
|---|---|---|---|
Total N | 3908 | 1788 | 1905 |
Gender (n, %) | Â | Â | Â |
   Male | 1954 (50.0%) | 728 (40.7%) | 904 (47.5%) |
   Female | 1954 (50.0%) | 1060 (59.3%) | 1001 (52.5%) |
Age (n, %) | Â | Â | Â |
   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, %) | Â | Â | - |
   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 | Â | Â | Â |
   Yes | - | 502 (28.1%) | 420 (22.0%) |
   No | - | 1286 (71.9%) | 1485 (78.0%) |