Table 1 Gender and age distributions of all subjects prior to matching, and those of the unmatched and matched subjects
| Â | NGR (Group I) | IGR (Group II) | DM (Group III) |
|---|---|---|---|
Before matching | Â | Â | Â |
n (men/women) | 1768 (623/1145) | 524 (184/340) | 431 (182/249) |
Age (years) | 52.6 ± 11.5 | 57.2 ± 10.2 | 60.0 ± 9.2 |
Unmatched | Â | Â | Â |
n (men/women) | 598 (165/433) | 135 (31/104) | 88 (35/53) |
Age (years) | 43.8 ± 11.1 | 56.5 ± 12.8 | 67.2 ± 7.4 |
Matched | Â | Â | Â |
n (men/women) | 1170 (458/712) | 389 (153/236) | 343 (147/196) |
Age (years) | 57.1 ± 8.7 | 57.5 ± 9.1 | 58.1 ± 8.6 |