Table 1 Characteristics of patients in five latent exposure groups.
Overall | Group 1 | Group 2 | Group 3 | Group 4 | Group 5 | p-value | |
|---|---|---|---|---|---|---|---|
n | 3605 | 1348 | 789 | 516 | 247 | 705 | |
Age at initial visit, y, mean ± SD | 54.3 ± 12.9 | 55.7 ± 10.7 | 56.7 ± 15.1 | 55.1 ± 10.9 | 49.7 ± 17.1 | 49.9 ± 12.4 | < 0.001 |
Age on 9/11/2001, y, mean ± SD | 41.8 ± 12.5 | 42.0 ± 10.5 | 42.9 ± 14.7 | 41.4 ± 10.7 | 40.4 ± 17.2 | 40.8 ± 12.3 | 0.008 |
Sex, n (%) | 0.007 | ||||||
Female | 1802 (50.0) | 633 (47.0) | 427 (54.1) | 253 (49.0) | 138 (55.9) | 351 (49.8) | |
Male | 1803 (50.0) | 715 (53.0) | 362 (45.9) | 263 (51.0) | 109 (44.1) | 354 (50.2) | |
Race/ethnicity, n (%) | < 0.001 | ||||||
Non-Hispanic White | 1715 (47.6) | 681 (50.5) | 374 (47.4) | 280 (54.3) | 141 (57.1) | 239 (33.9) | |
Non-Hispanic Black | 693 (19.2) | 322 (23.9) | 71 (9.0) | 88 (17.1) | 35 (14.2) | 177 (25.1) | |
Hispanic | 670 (18.6) | 233 (17.3) | 93 (11.8) | 93 (18.0) | 29 (11.7) | 222 (31.5) | |
Non-Hispanic Asian | 448 (12.4) | 76 (5.6) | 242 (30.7) | 46 (8.9) | 36 (14.6) | 48 (6.8) | |
Non-Hispanic Other | 79 (2.2) | 36 (2.7) | < 10 | < 10 | < 10 | 19 (2.7) | |
BMI group, kg/m2, n (%) | < 0.001 | ||||||
Underweight/normal (< 25) | 947 (26.3) | 317 (23.5) | 129 (25.0) | 225 (28.5) | 89 (36.0) | 187 (26.5) | |
Overweight (25–29) | 1038 (28.8) | 420 (31.2) | 151 (29.3) | 178 (22.6) | 61 (24.7) | 228 (32.3) | |
Obese (> 30) | 1032 (28.6) | 434 (32.2) | 162 (31.4) | 120 (15.2) | 56 (22.7) | 260 (36.9) | |
Missing | 588 (16.3) | 177 (13.1) | 74 (14.3) | 266 (33.7) | 41 (16.6) | 30 (4.3) | |
Income, n (%) | < 0.001 | ||||||
≤ 15 K | 1393 (38.6) | 419 (31.1) | 154 (29.8) | 354 (44.9) | 142 (57.5) | 324 (46.0) | |
15–30 K | 468 (13.0) | 165 (12.2) | 54 (10.5) | 120 (15.2) | 33 (13.4) | 96 (13.6) | |
> 30 K | 1744 (48.4) | 764 (56.7) | 308 (59.7) | 315 (39.9) | 72 (29.1) | 285 (40.4) | |
Smoking, n (%) | 0.177 | ||||||
No | 2180 (60.5) | 841 (62.4) | 307 (59.5) | 485 (61.5) | 140 (56.7) | 407 (57.7) | |
Yes | 1425 (39.5) | 507 (37.6) | 209 (40.5) | 304 (38.5) | 107 (43.3) | 298 (42.3) |
