Association between BMI peak characteristics and overweight and obesity at age 2 years
| Overweight at 2 years (n=1790) | Obesity at 2 years (n=1790) | |||
| Model containing infant BMI trajectory characteristics alone OR (95% CI) | Initial model plus all independent variables OR (95% CI) | Model containing infant BMI trajectory characteristics alone OR (95% CI) | Initial model plus all independent variables OR (95% CI) | |
| Magnitude (kg/m2) | 2.94 (2.54 to 3.40)*** | 3.11 (2.64 to 3.66)*** | 2.76 (2.11 to 3.60)*** | 2.69 (2.00 to 3.61)*** |
| Age (months) | 1.36 (1.23 to 1.51)*** | 1.35 (1.21 to 1.50)*** | 1.33 (1.08 to 1.65)** | 1.35 (1.08 to 1.68)** |
| Prepeak velocities (kg/m2/month) | 0.17 (0.07 to 0.40)*** | 0.14 (0.06 to 0.34)*** | 0.10 (0.02 to 0.56)** | 0.12 (0.02 to 0.74)* |
| Male (vs female) | 0.67 (0.49 to 0.90)** | 0.99 (0.51 to 1.96) | ||
| Birth weight Z-score,(continuous) | 1.06 (0.89 to 1.26) | 1.24 (0.84 to 1.82) | ||
| Duration of breast feeding (continuous) | 0.97 (0.93 to 1.01) | 0.92 (0.84 to 1.01) | ||
| Duration of sleep (continuous) | 0.89 (0.77 to 1.02) | 0.89 (0.63 to 1.24) | ||
| Caesarean section (vs vaginal birth) | 1.08 (0.81 to 1.44) | 0.80 (0.42 to 1.54) | ||
| Mother age (>35 years vs ≤35 years) | 0.68 (0.38 to 1.21) | 0.74 (0.21 to 2.59) | ||
The analysis includes only infants who had BMI peak within 0–408 days and whose BMI trajectories were estimable by the quadratic model.
*p<0.05; **p<0.01; ***p<0.001.
BMI, body mass index.