Table 4.
Association (β coefficient with 95% confidence interval) of maternal BMI according to the Chinese, WHO Asian or WHO European BMI classifications with the Mental Development Index (MDI) and the Psychomotor Development Index (PDI).
| BSID scores | BMI | β (95% CI) | ||
|---|---|---|---|---|
| Chinese BMI category | WHO Asian BMI category | WHO European BMI category | ||
| MDI | Underweight | 0.26 (-4.74, 5.27) | 0.62 (-4.42, 5.66) | 0.58 (-4.39, 5.55) |
| Normal weight | 1 (reference) | 1 (reference) | 1 (reference) | |
| Overweight/Obese | 0.63 (-3.20, 4.46) | 1.69 (-1.71, 5.10) | 3.71 (-0.84, 8.26) | |
| PDI | Underweight | -0.47 (-4.68, 3.75) | -0.42 (-4.67, 3.83) | -0.39 (-4.58, 3.81) |
| Normal weight | 1 (reference) | 1 (reference) | 1 (reference) | |
| Overweight/Obese | -0.51 (-3.74, 2.71) | -0.17 (-3.05, 2.70) | -0.10 (-3.95, 3.74) | |
Adjusted for maternal age, gestational weight gain (continuous), Han ethnicity, marital status, history of miscarriage or abortion, smoking or drinking during pregnancy, maternal educational level, participant and partner’s income, gestational age at delivery, new born sex, Apgar score at 1 min, Apgar score at 5 min and child age at neurocognitive follow-up (months).
BMI body mass index, CI confidence intervals, MDI Mental Development Index, PDI Psychomotor Development Index.