Table 1 The differences of self-reported health among migrant workers in socio-demographic characteristics
|  | N | % | Self-report health \( \overline{\mathrm{x}} \) (SD) | Z / χ2 | P |
|---|---|---|---|---|---|
Gender | |||||
 Male | 8799 | 55.0 | 23.4 (3.8) | -8.03 | <.0001 |
 Female | 7200 | 45.0 | 23.0 (3.9) |  |  |
Age | |||||
  < 18 | 291 | 1.8 | 24.3 (3.5) | 151.64 | <.0001 |
 18–29 | 6070 | 37.9 | 23.6 (3.7) |  |  |
 29–39 | 5668 | 35.4 | 23.1 (3.9) |  |  |
 39–49 | 3349 | 20.9 | 22.8 (4.0) |  |  |
  ≥ 49 | 621 | 3.9 | 22.3 (4.1) |  |  |
Marital status | Â | Â | Â | 64.28 | <.0001 |
 Unmarried | 4056 | (25.35) | 23.6 (3.7) |  |  |
 Married | 11,540 | (72.13) | 23.1 (3.9) |  |  |
 Remarried | 169 | (1.06) | 22.8 (4.0) |  |  |
 Divorced | 198 | (1.24) | 23.2 (4.0) |  |  |
 Widowed | 36 | (0.23) | 21.0 (4.5) |  |  |
Hukou | |||||
 Agriculture | 13,759 | 86.0 | 23.3 (3.9) | -4.75 | <.0001 |
 Non-agriculture | 2240 | 14.0 | 22.9 (3.9) |  |  |
Education | Â | Â | Â | 50.27 | <.0001 |
 Illiteracy or primary school | 1505 | 9.4 | 22.7 (4.0) |  |  |
 Middle school | 8085 | 50.5 | 23.3 (3.8) |  |  |
 High school | 4051 | 25.3 | 23.4 (3.8) |  |  |
 College and above | 2358 | 14.7 | 22.9 (3.9) |  |  |
Personal month net income (USD) | |||||
  < 300 | 2412 | 15.1 | 22.9 (4.1) | 12.62 | 0.0055 |
 300–750 | 10,578 | 66.1 | 23.2 (3.8) |  |  |
 750–1500 | 2466 | 15.4 | 23.3 (3.9) |  |  |
  ≥ 1500 | 543 | 3.4 | 22.9 (4.0) |  |  |
Household month income (USD) | |||||
  < 300 | 420 | 2.6 | 23.6 (4.1) | 12.57 | 0.0057 |
 300–750 | 5990 | 37.4 | 23.2 (3.9) |  |  |
 750–1500 | 7541 | 47.2 | 23.1 (3.9) |  |  |
  ≥ 1500 | 2048 | 12.8 | 23.3 (3.8) |  |  |
Migrated distance | |||||
 Across province | 8771 | 54.8 | 23.1 (3.9) | 3.42 | 0.0006 |
 With province | 7228 | 45.2 | 23.3 (3.9) |  |  |
Migrant time | |||||
 Over five years | 11,105 | 69.4 | 23.3 (3.8) | −1.95 | 0.511 |
 Less than five years | 4894 | 30.6 | 23.1 (3.9) |  |  |
Total | 15,999 | 100.0 | 23.2 (3.7) | Â | Â |