Table 3.
Correlates of parental underestimation of their child’s weight (v. accurate estimation); children aged 6–17 years and their parents (n 47 417) from seven provinces in China, September–November 2013
| Healthy-weight children (n 29 257)† | Overweight children (n 11 709) | |||||||
|---|---|---|---|---|---|---|---|---|
| Crude model | Adjusted model‡ | Crude model | Adjusted model‡ | |||||
| OR | 95 % CI | OR | 95 % CI | OR | 95 % CI | OR | 95 % CI | |
| Age (years) | 0·92** | 0·91, 0·92 | 0·90** | 0·88, 0·92 | 0·93** | 0·91, 0·94 | 0·76 | 0·74, 0·79 |
| Gender | ||||||||
| Boys | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. |
| Girls | 0·58** | 0·55, 0·60 | 0·40** | 0·38, 0·42 | 0·80** | 0·74, 0·86 | 0·38** | 0·34, 0·41 |
| Child BMI Z-score | 0·25** | 0·24, 0·26 | 0·19** | 0·18, 0·20 | 0·35** | 0·32, 0·37 | 0·18** | 0·16, 0·20 |
| Area | ||||||||
| Urban | 1·03 | 0·98, 1·09 | 0·81 | 0·58, 1·13 | 1·05 | 0·98, 1·13 | 1·02 | 0·47, 2·20 |
| Rural | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. |
| Paternal education level | ||||||||
| Junior high or below | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. |
| Senior high or junior college | 1·08** | 1·02, 1·13 | 1·07 | 0·99, 1·16 | 0·95 | 0·87, 1·03 | 1·01 | 0·89, 1·14 |
| College or above | 1·08* | 1·01, 1·17 | 1·10 | 0·98, 1·25 | 1·05 | 0·94, 1·17 | 1·02 | 0·85, 1·22 |
| Maternal education level | ||||||||
| Junior high or below | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. |
| Senior high or junior college | 1·03 | 0·98, 1·09 | 0·96 | 0·89, 1·04 | 1·02 | 0·95, 1·11 | 1·06 | 0·94, 1·20 |
| College or above | 1·01 | 0·93, 1·09 | 0·92 | 0·81, 1·04 | 1·17* | 1·04, 1·31 | 1·11 | 0·92, 1·35 |
| Monthly family income | ||||||||
| <5000 RMB | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. |
| 5000–8000 RMB | 1·06 | 0·99, 1·15 | 0·97 | 0·89, 1·07 | 0·80** | 0·72, 0·90 | 0·92 | 0·80, 1·06 |
| ≥8000 RMB | 1·13** | 1·05, 1·22 | 0·99 | 0·90, 1·09 | 0·71** | 0·64, 0·79 | 0·96 | 0·83, 1·12 |
| Refuse to answer | 1·05 | 0·98, 1·13 | 0·98 | 0·90, 1·06 | 0·79** | 0·72, 0·88 | 0·99 | 0·87, 1·12 |
| Paternal weight status | ||||||||
| Underweight | 1·15 | 0·98, 1·36 | 1·05 | 0·87, 1·26 | 0·92 | 0·66, 1·27 | 1·02 | 0·69, 1·52 |
| Healthy weight | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. |
| Overweight | 0·86** | 0·81, 0·91 | 1·05 | 0·98, 1·12 | 0·85** | 0·78, 0·92 | 0·91 | 0·82, 1·01 |
| Obese | 0·66** | 0·60, 0·73 | 0·90 | 0·81, 1·01 | 0·77** | 0·69, 0·86 | 0·88 | 0·77, 1·00 |
| Maternal weight status | ||||||||
| Underweight | 1·53** | 1·40, 1·68 | 1·15* | 1·03, 1·27 | 1·14 | 0·94, 1·37 | 0·95 | 0·76, 1·20 |
| Healthy weight | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. | 1·00 | Ref. |
| Overweight | 0·75** | 0·70, 0·81 | 1·02 | 0·94, 1·10 | 0·90* | 0·83, 0·99 | 1·03 | 0·93, 1·15 |
| Obese | 0·74** | 0·63, 0·87 | 1·10 | 0·92, 1·32 | 0·74** | 0·63, 0·87 | 0·99 | 0·81, 1·21 |
Ref., referent category.
OR and 95 % CI were derived from binary logistic regression analysis.
*P<0·05, ** P<0·01.
†
Healthy-weight children who were overestimated by parents are excluded from the analysis (n 3684, 10·3 % of healthy-weight children).
‡
Adjusted for each other, region and school.