Table 2.
Weighted frequencies of exposure variables by residence (n = 847).
| Variables | Level | Residence | p * | |
|---|---|---|---|---|
| Rural n (col, %) | Urban n (col, %) | |||
| Child’s gender | Male | 212 (50.5) | 212 (49.6) | 0.810 |
| Female | 208 (49.5) | 215 (50.4) | ||
| Birth order | 1 | 218 (51.9) | 282 (66.0) | <0.001 |
| 2 | 140 (33.3) | 119 (27.9) | ||
| ≥3 | 62 (14.8) | 26 (6.1) | ||
| Mothers’ ages | <30 | 317 (75.5) | 273 (63.9) | <0.001 |
| ≥30 | 103 (24.5) | 154 (36.1) | ||
| Mother’s education | < senior middle school | 118 (28.1) | 39 (9.1) | <0.001 |
| ≥ senior middle school | 302 (71.9) | 388 (90.9) | ||
| Mother’s occupation | Home fulltime | 179 (42.6) | 91 (21.3) | <0.001 |
| Employed | 241 (57.4) | 336 (78.7) | ||
| Mother’s ethnicity | Han | 372 (88.6) | 407 (95.3) | <0.001 |
| Minority | 48 (11.4) | 20 (4.7) | ||
| Household income per capital | <5000 CNY/month | 159 (37.9) | 96 (22.5) | <0.001 |
| 5000–10000 CNY/month | 167 (39.8) | 205 (48.0) | ||
| >10000 CNY/month | 94 (22.3) | 126 (29.5) | ||
| Immigration status | Resident | 202 (48.1) | 307 (71.9) | <0.001 |
| Migrant | 218 (51.9) | 120 (28.1) | ||
| Distance to health facility | Not a big problem | 301 (71.7) | 300 (70.3) | 0.652 |
| A big problem | 119 (28.3) | 127 (29.7) | ||
*: χ2 test was used with a two-tailed significance level of α of 0.05.