Table 1.
Demographic characteristics of respondents
| Characteristics | Total, No. (%) | No. (%) | Pearson χ2 | P Value | |
|---|---|---|---|---|---|
| Male | Female | ||||
| (N = 123,768) | (N = 87,330) | (N = 36,438) | |||
| Age, mean (SD), years | 30.3 (6.4) | 30.5 (6.4) | 30.1 (6.6) | 362.008 | <0.001 |
| Education levels, years | 6.109 | 0.106 | |||
| ≤6 Years | 1065 (0.9) | 766 (0.9) | 299 (0.8) | ||
| 7–9 Years | 35,682 (28.8) | 25,108 (28.8) | 10,574 (29.0) | ||
| 10–12 Years | 48,522 (39.2) | 34,128 (39.1) | 14,394 (39.5) | ||
| ≥13Years | 38,499 (31.1) | 27,328 (31.3) | 11,171 (30.7) | ||
| Ethnicities | 1.129 | 0.288 | |||
| Han | 110,243 (89.1) | 77,840 (89.1) | 32,403 (88.9) | ||
| Minorities | 13,525 (10.9) | 9490 (10.9) | 4035 (11.1) | ||
| Provinces or Regions | 2.275 | 0.131 | |||
| Hubei | 9924 (8.0) | 7068 (8.1) | 2856 (7.8) | ||
| Others | 113,844 (92.0) | 80,262 (91.9) | 33,582 (92.2) | ||
| Residence | 0.093 | 0.761 | |||
| Urban | 68,505 (55.3) | 48,361 (55.4) | 20,144 (55.3) | ||
| Rural | 55,263 (44.7) | 38,969 (44.6) | 16,294 (44.7) | ||
| Marital status | 0.051 | 0.822 | |||
| Married | 49,983 (40.4) | 35,250 (40.4) | 14,733 (40.4) | ||
| Not married | 73,785 (59.6) | 52,080 (59.6) | 21,705 (59.6) | ||
| Health status | 1.641 | 0.440 | |||
| Very healthy | 92,396 (74.7) | 65,147 (74.6) | 27,249 (74.8) | ||
| Well | 28,832 (23.3) | 20,363 (23.3) | 8469 (23.2) | ||
| General or poor | 2540 (2.1) | 1820 (2.1) | 720 (2.0) | ||
| Smoking status | 0.933 | 0.627 | |||
| Hardly ever | 91,008 (73.5) | 64,282 (73.6) | 26,726 (73.3) | ||
| Sometimes | 892 (7.2) | 6286 (7.2) | 2640 (7.2) | ||
| Always | 23,834 (19.3) | 16,762 (19.2) | 7072 (19.4) | ||
| Alcohol consumption | 2.830 | 0.243 | |||
| Hardly ever | 111,717 (90.3) | 78,889 (90.3) | 32,828 (90.1) | ||
| Sometimes | 11,032 (8.9) | 7742 (8.9) | 3290 (9.0) | ||
| Always | 1019 (0.8) | 699 (0.8) | 320 (0.9) | ||
| Positions | 9.342 | 0.025 | |||
| General worker | 94,523 (76.4) | 66,610 (76.3) | 27,913 (76.6) | ||
| Line supervisor | 7455 (6.0) | 5249 (6.0) | 2206 (6.1) | ||
| Group leader | 6008 (4.9) | 4187 (4,8) | 1821 (5.0) | ||
| Manager | 15,782 (12.8) | 11,284 (12.9) | 4498 (12.3) | ||
| Seniority, months | 0.392 | 0.942 | |||
| 0–6 months | 29,253 (23.6) | 20,680 (23.7) | 8573 (23.5) | ||
| 7–12 months | 16,317 (13.2) | 11,516 (13.2) | 4801(13.2) | ||
| 13–24 months | 15,560 (12.6) | 10,979 (12.6) | 4581(12.6) | ||
| >24months | 62,638 (50.6) | 44,155 (50.6) | 18,483(50.7) | ||
| Cumulative number of confirmed cases in the provinces | 70.549 | <0.001 | |||
| 1–499 | 26,860 (21.7) | 19,420 (22.2) | 7740 (20.4) | ||
| 500–999 | 84,283 (68.1) | 59,185 (67.8) | 25,098 (68.9) | ||
| 1000–9999 | 2701 (2.2) | 1945 (2.2) | 756 (2.1) | ||
| ≥10,000 | 9924 (8.0) | 6780 (7.8) | 3144 (8.6) | ||
CI, confidence interval.