Table 1.
Characteristics of participants and their family in rural Hebei, China 2011 (N = 1601) $
| Characteristics | n | % |
|---|---|---|
| Maternal age, yr* |
27 |
(24–30) |
| Maternal Hukou |
|
|
| Urban |
20 |
1.26 |
| Rural |
1563 |
98.74 |
| Maternal education |
|
|
| Primary school |
82 |
5.27 |
| Junior high school |
1238 |
79.51 |
| High school |
187 |
12.01 |
| College or above |
50 |
3.21 |
| Maternal occupation |
|
|
| Farmer |
1186 |
74.92 |
| Worker/Staff |
64 |
4.04 |
| Housewife |
278 |
17.56 |
| Others |
55 |
3.47 |
| Family size* |
5 |
(4–6) |
| Annual family income, Yuan* |
20000 |
(10000–30000) |
| Annual family consumption* expenditure, Yuan* |
15000 |
(10000–20000) |
| Children’s gender |
|
|
| Male |
916 |
57.21 |
| Female | 685 | 42.79 |
$18 were missing for maternal age, maternal Hukou and maternal occupation respectively, 44 were missing for maternal education, 638 were missing for annual family income and 603 were missing for annual family consumption expenditure.
*Continuous variables were expressed as median (Q1-Q3).