Table 1 Descriptive statistics of the study population in depression among the training cohort
Factors | Levels | Overall (n = 5956), % | Depression (n = 1154), % | Non-depression (n = 4802), % | P value |
|---|---|---|---|---|---|
Gender | Male | 2692 (45.2) | 477 (41.3) | 2215 (46.1) | 0.004 |
Female | 3264 (54.8) | 677 (58.7) | 2587 (53.9) | ||
Age | 20 ~ 29 | 1041 (17.5) | 152 (13.2) | 889 (18.5) | < 0.001 |
30 ~ 39 | 1013 (17.0) | 178 (15.4) | 835 (17.4) | ||
40 ~ 49 | 1100 (18.5) | 236 (20.5) | 864 (18.0) | ||
50 ~ 59 | 947 (15.9) | 222 (19.2) | 725 (15.1) | ||
60 ~ 69 | 908 (15.2) | 194 (16.8) | 714 (14.9) | ||
> = 70 | 947 (15.9) | 172 (14.9) | 775 (16.1) | ||
Race | Hispanic | 988 (16.6) | 230 (19.9) | 758 (15.8) | < 0.001 |
Non-Hispanic White | 3127 (52.5) | 520 (45.1) | 2607 (54.3) | ||
African American | 1024 (17.2) | 231 (20.0) | 793 (16.5) | ||
Other | 817 (13.7) | 173 (15.0) | 644 (13.4) | ||
Marry | Married/Cohabitting | 3469 (58.2) | 572 (49.6) | 2897 (60.3) | < 0.001 |
Unmarried | 1056 (17.7) | 213 (18.5) | 843 (17.6) | ||
Wid/Div/Sep | 1431 (24.0) | 369 (32.0) | 1062 (22.1) | ||
Physical activity | Vigorous | 1122 (18.8) | 125 (10.8) | 997 (20.8) | < 0.001 |
Inadequate | 812 (13.6) | 113 (9.8) | 699 (14.6) | ||
Moderate | 627 (10.5) | 66 (5.7) | 561 (11.7) | ||
Sedentary | 3395 (57.0) | 850 (73.7) | 2545 (53.0) | ||
Income | < = 4 | 2048 (34.4) | 566 (49.0) | 1482 (30.9) | < 0.001 |
< = 8 | 2382 (40.0) | 433 (37.5) | 1949 (40.6) | ||
< = 12 | 1526 (25.6) | 155 (13.4) | 1371 (28.6) | ||
Sleep time | < 6 h | 1126 (18.9) | 321 (27.8) | 805 (16.8) | < 0.001 |
< = 8 h | 4394 (73.8) | 713 (61.8) | 3681 (76.7) | ||
> 8 h | 436 (7.3) | 120 (10.4) | 316 (6.6) | ||
Hypertension | Yes | 2545 (42.7) | 590 (51.1) | 1955 (40.7) | < 0.001 |
No | 3411 (57.3) | 564 (48.9) | 2847 (59.3) | ||
Blood lead | Grade 1 | 754 (12.7) | 96 (8.3) | 658 (13.7) | < 0.001 |
Grade 2 | 1447 (24.3) | 297 (25.7) | 1150 (23.9) | ||
Grade 3 | 1779 (29.9) | 335 (29.0) | 1444 (30.1) | ||
Grade 4 | 1976 (33.2) | 426 (36.9) | 1550 (32.3) |