Table 1.
Demographic characteristics
| Variables | Group | West (N = 1393) |
Central (N = 1395) |
East (N = 1486) |
All (N = 4274) |
|---|---|---|---|---|---|
| Residence | Urban | 498(36.03%) | 753(54.06%) | 757(50.94%) | 2008(47.13%) |
| Rural | 884(63.97%) | 640(45.94%) | 729(49.06%) | 2253(52.87%) | |
| Gender | Male | 545(39.32%) | 638(46.16%) | 660(44.41%) | 1843(43.32%) |
| Female | 841(60.68%) | 744(53.84%) | 826(55.59%) | 2411(56.68%) | |
| Age (years) | Younger than 31 | 622(46.77%) | 723(52.74%) | 884(59.61%) | 2229(53.27%) |
| 31–40 | 376(28.27%) | 364(26.55%) | 304(20.50%) | 1044(24.95%) | |
| Older than 40 | 332(24.96%) | 284(20.71%) | 295(19.89%) | 911(21.77%) | |
| Marital status | Others | 407(29.43%) | 735(52.80%) | 892(60.07%) | 2034(47.75%) |
| Married | 976(70.57%) | 657(47.20%) | 593(39.93%) | 2226(52.25%) | |
| Education | Less than Primary school | 88(6.34%) | 56(4.02%) | 87(5.86%) | 231(5.41%) |
| Middle-High school | 642(46.29%) | 485(34.79%) | 473(31.85%) | 1600(37.51%) | |
| More than University | 657(47.37%) | 853(61.19%) | 925(62.29%) | 2435(57.08%) | |
| Employment | No | 909(65.49%) | 740(53.12%) | 902(60.70%) | 2551(59.78%) |
| Yes | 479(34.51%) | 653(46.88%) | 584(39.30%) | 1716(40.22%) | |
| Monthly income (Ren Min Bi) | Less than 3300 | 818(60.59%) | 613(44.32%) | 651(43.81%) | 2082(49.35%) |
| 3300–5999 | 331(24.52%) | 452(32.68%) | 390(26.24%) | 1173(27.80%) | |
| 6000–9999 | 137(10.15%) | 238(17.21%) | 267(17.97%) | 642(15.22%) | |
| More than 9999 | 64(4.74%) | 80(5.78%) | 178(11.98%) | 322(7.63%) |