Table 1 Characteristics of emergency physicians and the general population before and after propensity score matching
Variables | Unmatched | Matcheda | ||||
|---|---|---|---|---|---|---|
Physicians (N = 10 457) | General population (N = 101 120) | P value | Physicians (N = 9271) | General population (N = 9271) | P value | |
Age (years) |  |  | < 0.001 |  |  | 1.000 |
 ≤ 30 | 2600 (24.9%) | 63 743 (63.0%) | 2442 (26.3%) | 2442 (26.3%) |  | |
 31–40 | 4977 (47.6%) | 14 681 (14.5%) | 3949 (42.6%) | 3949 (42.6%) |  | |
 ≥ 41 | 2880 (27.5%) | 22 696 (22.4%) | 2880 (31.1%) | 2880 (31.1%) |  | |
Gender |  |  | < 0.001 |  |  | 1.000 |
 Male | 7632 (73.0%) | 42 930 (42.5%) | 6446 (69.5%) | 6446 (69.5%) |  | |
 Female | 2825 (27.0%) | 58 190 (57.5%) | 2825 (30.5%) | 2825 (30.5%) |  | |
Marital status |  |  | < 0.001 |  |  | 1.000 |
 Unmarried/other | 1629 (15.6%) | 65 492 (64.8%) | 1629 (17.6%) | 1629 (17.6%) |  | |
 Married | 8828 (84.4%) | 35 628 (35.2%) | 7642 (82.4%) | 7642 (82.4%) |  | |
Educational level |  |  | < 0.001 |  |  | 1.000 |
 Associate degree or below | 1684 (16.1%) | 46 756 (46.2%) | 1684 (18.2%) | 1684 (18.2%) |  | |
 Bachelor degree or above | 8773 (83.9%) | 54 364 (53.8%) | 7587 (81.8%) | 7587 (81.8%) |  | |
Habitual residence |  |  | < 0.001 |  |  | 1.000 |
 Western region | 3820 (36.5%) | 23 511 (23.3%) | 3004 (32.4%) | 3004 (32.4%) |  | |
 Central region | 2830 (27.1%) | 21 812 (21.6%) | 2460 (26.5%) | 2460 (26.5%) |  | |
 Eastern region | 3807 (36.4%) | 55 797 (55.2%) | 3807 (41.1%) | 3807 (41.1%) |  | |
Major depression |  |  | < 0.001 |  |  | < 0.001 |
 No | 6723 (64.3%) | 87 086 (86.1%) | 6030 (65.0%) | 7934 (85.6%) |  | |
 Yes | 3734 (35.7%) | 14 034 (13.9%) | 3241 (35.0%) | 1337 (14.4%) |  | |
Severity of depressive symptoms |  |  | < 0.001 |  |  | < 0.001 |
 None | 2330 (22.3%) | 52 149 (51.6%) | 2109 (22.7%) | 4995 (53.9%) |  | |
 Mild | 4393 (42.0%) | 34 937 (34.6%) | 3921 (42.3%) | 2939 (31.7%) |  | |
 Moderate | 2027 (19.4%) | 9683 (9.6%) | 1765 (19.0%) | 879 (10.3%) |  | |
 Moderately severe | 1097 (10.5%) | 2956 (2.9%) | 949 (10.2%) | 298 (3.2%) |  | |
 Severe | 610 (5.8%) | 1395 (1.4%) | 527 (5.7%) | 101 (0.9%) |  | |