Table 2. Associations of parental education with BMI z-score and WHtR z-score at 14 years in Hong Kong’s “Children of 1997” birth cohort.
| Highest parental education | P for interaction | ||||||
|---|---|---|---|---|---|---|---|
| ≥Grade 12 | Grade 10–11 | ≤Grade 9 | P for trend | mother’s place of birth | |||
| (n = 1870) | (n = 3144) | n = 2238 | sex | both | |||
| BMI z-score | |||||||
| All | Ref | 0.04 (-0.04, 0.11) | 0.04 (-0.04, 0.12) | 0.29 | 0.002 | 0.24 | 0.67 |
| Children of Hong Kong born mothers | Ref | 0.07 (-0.01, 0.15) | 0.15 (0.04, 0.26) | 0.01 | - | 0.24 | - |
| Children of migrant mothers from China | Ref | -0.09 (-0.23, 0.05) | -0.13 (-0.26, 0.01) | 0.09 | - | 0.02 | - |
| WHtR z-score | |||||||
| All | Ref | 0.08 (0.01, 0.14) | 0.21 (0.13, 0.28) | <0.001 | 0.40 | 0.02 | 0.99 |
| Boys | Ref | 0.04 (-0.05, 0.13) | 0.12 (0.02, 0.22) | 0.02 | 0.52 | - | - |
| Girls | Ref | 0.11(0.02, 0.20) | 0.30 (0.19, 0.41) | <0.001 | 0.61 | - | - |
Adjusted for sex, age0020(years) at measurements (for WHtR z-score only) and mother’s place of birth (except for stratified models by mother’s place of birth).