Table 3.
Odds ratios of independent variables for overweight among study participants in univariate logistic regression analysis: pre-school children (1138) from seven kindergartens in Beijing, China, spring term 2010
| Independent variable | OR | 95 % CI | P |
|---|---|---|---|
| Age | 0·95 | 0·78, 1·14 | 0·5601 |
| Sex | 0·82 | 0·61, 1·09 | 0·1691 |
| Main caregivers of the child | |||
| Parents | 1·00 | Ref. | – |
| Grandparents | 1·15 | 0·77, 1·72 | 0·4875 |
| Baby-sitter or others | 1·71 | 0·44, 6·67 | 0·4402 |
| Father's education | |||
| High | 1·00 | Ref. | |
| Medium | 1·27 | 0·90, 1·80 | 0·1773 |
| Low | 1·43 | 0·94, 2·17 | 0·0964 |
| Mother's education | |||
| High | 1·00 | Ref. | – |
| Medium | 1·43 | 0·95, 2·16 | 0·0865 |
| Low | 1·72 | 1·08, 2·74 | 0·0230 |
| Family type | |||
| Nuclear family | 1·00 | Ref. | – |
| Stem family | 1·17 | 0·87, 1·58 | 0·3065 |
| Extended family | 0·56 | 0·19, 1·60 | 0·2767 |
| Single-parent family | 2·01 | 0·37, 11·10 | 0·4227 |
| Monthly family income, RMB | |||
| Less than ¥2000 | 1·00 | Ref. | – |
| ¥2000–5000 | 2·53 | 0·56, 11·34 | 0·2266 |
| ¥5000–10 000 | 1·95 | 0·44, 8·66 | 0·3803 |
| ¥10 000–20 000 | 1·99 | 0·44, 9·03 | 0·3706 |
| ¥20 000 or more | 1·57 | 0·32, 7·64 | 0·5783 |
RMB, renminbi; Ref., referent category.
All variables were analysed as dummy variables except for children's age and sex; the dependent variable was children's weight categories (normal weight and overweight, again the overweight category includes obese children).