Table 5:
Associations of BMI z-score with standing height, trunk and leg length, and pubertal development at 12.9 years in Project Viva
| BMI z-score | β (95% CI)a | OR (95% CI)a,b | |||
|---|---|---|---|---|---|
| Standing height (cm) | Trunk length (cm) | Leg length (cm) | Pubertal score (units) | Pubic hair stage | |
| Boys (n=758) | |||||
| Birth | 0.09 (−0.69,0.88) | 0.21 (−0.26,0.69) | −0.12 (−0.62,0.38) | −0.02 (−0.09,0.06) | 1.03 (0.83,1.27) |
| 6.3m | 0.32 (−0.27,0.92) | 0.34 (−0.02,0.70) | −0.01 (−0.39,0.36) | 0.03 (−0.02,0.09) | 1.11 (0.93,1.32) |
| 3.2y | 0.88 (0.10,1.67)c | 0.77 (0.31,1.22) | 0.12 (−0.39,0.63) | 0.01 (−0.05,0.08) | 0.93 (0.75,1.16) |
| 7.7y | 1.62 (0.84,2.40) | 0.71 (0.24,1.19) | 0.91 (0.39,1.42) | 0.11 (0.05,0.18) | 1.49 (1.19,1.87) |
| 12.9y | 0.91 (−0.01,1.82) | 1.17 (0.63,1.71) | −0.27 (−0.85,0.32) | 0.12 (0.04,0.20) | 1.37 (1.04,1.79) |
| Girls (n=732) | |||||
| Birth | 0.03 (−0.72,0.79) | −0.05 (−0.51,0.42) | 0.08 (−0.39,0.55) | −0.02 (−0.09,0.04) | 1.05 (0.84,1.31) |
| 6.3m | 0.31 (−0.25,0.87) | 0.41 (0.05,0.77) | −0.10 (−0.47,0.27) | 0.05 (−0.01,0.10) | 1.28 (1.05,1.56) |
| 3.2y | 0.59 (−0.14,1.31) | 0.72 (0.27,1.17) | −0.13 (−0.59,0.32) | 0.05 (−0.01,0.12) | 1.09 (0.86,1.37) |
| 7.7y | 1.14 (0.43,1.85) | 0.88 (0.44,1.32) | 0.26 (−0.20,0.72) | 0.17 (0.10,0.24) | 1.60 (1.26,2.03) |
| 12.9y | 1.43 (0.60,2.27) | 1.50 (0.98,2.03) | −0.07 (−0.60,0.46) | 0.30 (0.23,0.38) | 1.84 (1.38,2.45) |
a
Adjusted for maternal and paternal education level, height and BMI; maternal age, smoking history and parity; gestational age at delivery; breastfeeding initiation; child ethnicity; BMI z-score at all previous time points and age at outcome.
b
OR (odds ratio) reflects relative odds of being in a higher Tanner stage category.
c
Bold values indicate statistically significant associations at p<0.05.