Table 1 Demographic characteristics of participants
|  | Lower exposure risk group (n = 1890) | Higher exposure risk group (n = 820) | Medical team members in a small epidemic in Beijing (n = 700) | Medical team members in the Hubei outbreak (n = 67) |
|---|---|---|---|---|
Gender | ||||
 Male | 459 (24.3%) | 135 (16.5%) | 143 (20.4%) | 23 (34.3%) |
 Female | 1431 (75.7%) | 685 (83.5%) | 557 (79.6%) | 44 (65.7%) |
Age | ||||
  < 30 y | 308 (16.3%) | 200 (24.4%) | 188 (26.9%) | 8 (11.9%) |
 30–40 y | 869 (46.0%) | 444 (54.1%) | 402 (57.4%) | 39 (58.2) |
 41–50 y | 500 (26.5%) | 158 (19.3%) | 103 (14.7%) | 17 (25.4%) |
  > 50 y | 213 (11.2%) | 18 (2.2%) | 7 (1%) | 3 (4.5%) |
M | 38.33 | 34.75 | 33.92 | 37.52 |
SD | 8.70 | 7.36 | 6.27 | 7.68 |
Professions | ||||
 Doctors | 480 (25.4%) | 252 (31.1%) | 80 (11.4%) | 17 (25.4%) |
 Nurses | 676 (35.8%) | 503 (62.1%) | 567 (81%) | 48 (71.6%) |
 Medical technicians | 483 (25.7%) | 51 (6.3%) | 45 (6.4%) | 1 (1.5%) |
 Administrative staff | 251 (13.3%) | 4 (0.5%) | 8 (1.1%) | 1 (1.5%) |
Length of working experience | ||||
  < 5 y | 239 (12.9%) | 148 (18.2%) | 81 (11.6%) | 3 (4.5%) |
 5–10 y | 440 (23.8%) | 248 (30.5%) | 270 (38.8%) | 18 (26.9%) |
 11–20 y | 603 (32.7%) | 286 (35.1%) | 264 (37.9%) | 31 (46.3%) |
 21–30 y | 386 (20.9%) | 108 (13.3%) | 77 (11.1%) | 12 (17.9%) |
  > 30 y | 178 (9.6%) | 24 (2.9%) | 4 (0.6%) | 3 (4.5%) |
M | 15.86 | 12.26 | 11.92 | 15.37 |
SD | 9.93 | 7.95 | 6.70 | 8.24 |
Marriage | ||||
 Unmarried | 276 (14.6%) | 242 (29.5%) | 241 (34.0%) | 15 (22.4%) |
 Married | 1545 (81.7%) | 551 (67.2%) | 439 (61.9%) | 50 (74.6%) |
 Divorced | 66 (3.5%) | 26 (3.2%) | 27 (3.8%) | 2 (3.0%) |
 Other | 3 (0.2%) | 1 (0.1%) | 2 (0.3%) | 0 (0%) |
Annual income (CNY) | ||||
  < 200 k | 1223 (64.7%) | 561 (68.4%) | 449 (64.1%) | 41 (61.2%) |
 200–300 k | 602 (31.9%) | 244 (29.8%) | 241 (34.4%) | 22 (32.8%) |
 300–500 k | 57 (3%) | 13 (1.6%) | 9 (1.3%) | 3 (4.5%) |
 >500 k | 8 (0.4%) | 2 (0.2%) | 1 (0.1%) | 1 (1.5%) |