Table 1 Demographic characteristics of participants, by age band
Variable | 19 yr or less n = 237 (19.4%) | 20 to 44 yr n = 702 (57.5%) | 45 yr or more n = 281 (23.0%) | ALL n = 1220 |
|---|---|---|---|---|
Male gender, n (%) | 139 (58.6%) | 440 (62.7%) | 192 (68.3%) | 771 (63.2%) |
Age in years, mean (SD) | 13.8 (4.9) | 31.6 (7.0) | 52.3 (5.5) | 32.9 (14.1) |