Table 1 Clinical characteristics of case–control samples
| Â | African Americans (AAs) | European American (EAs) | ||
|---|---|---|---|---|
|  | SD cases (n = 1,562) | Contols (n = 343) | SD cases (n = 981) | Contols (n = 351) |
AD, n (%) | 1064 (68.1%) | 0 (0%) | 671 (68.4%) | 0 (0%) |
CD, n (%) | 1309 (83.8%) | 0 (0%) | 696 (70.9%) | 0 (0%) |
OD, n (%) | 358 (22.9%) | 0 (0%) | 577 (58.8%) | 0 (0%) |
MjD, n (%) | 531 (34.0%) | 0 (0%) | 318 (32.4%) | 0 (0%) |
AD + CD + OD + MjD, n(%) | 87 (5.6%) | 0 (0%) | 131 (13.4%) | 0 (0%) |
AD + CD + OD, n(%) | 196 (12.5%) | 0 (0%) | 283 (28.8%) | 0 (0%) |
AD + OD + MjD, n(%) | 90 (5.8%) | 0 (0%) | 141 (14.4%) | 0 (0%) |
AD + CD + MjD, n(%) | 360 (23.0%) | 0 (0%) | 195 (19.9%) | 0 (0%) |
CD + OD + MjD, n(%) | 116 (7.4%) | 0 (0%) | 182 (18.6%) | 0 (0%) |
AD + CD, n(%) | 854 (54.7%) | 0 (0%) | 476 (48.5%) | 0 (0%) |
AD + OD, n(%) | 217 (13.9%) | 0 (0%) | 321 (32.7%) | 0 (0%) |
AD + MjD, n(%) | 424 (27.1%) | 0 (0%) | 232 (23.6) | 0 (0%) |
CD + OD, n(%) | 303 (19.4%) | 0 (0%) | 436 (44.4%) | 0 (0%) |
CD + MjD, n(%) | 454 (29.1%) | 0 (0%) | 260 (26.5%) | 0 (0%) |
OD + MjD, n(%) | 123 (7.9%) | 0 (0%) | 206 (21.0%) | 0 (0%) |
Male, n (%) | 786 (50.5%) | 153 (44.6%) | 485 (49.4%) | 190 (54.1%) |
|  | χ2 = 3.45, df = 1, P = 0.063 |  | χ2 = 1.70, df = 1, P = 0.192 |  |
Age, years | 39 ± 9 | 39 ± 9 | 38 ± 12 | 41 ± 13 |
|  | t = −1.029, P = 0.304 (2-tailed) |  | t = 4.76, P = 2.2 × 10-6 (2-tailed) |  |