Table 1 Characteristic of the infants in the study
From: DNA methylation in infants with low and high body fatness
Infants with low body fatness (n = 23) | Infants with high body fatness (n = 24) | ||
|---|---|---|---|
Value | Value | P-valuea | |
Infant characteristics | |||
Birth weightb (g) | 3320 ± 315 | 4045 ± 416 | < 0.001 |
Gestational age at birth (week) | 40.2 ± 1.1 | 40.6 ± 1.0 | 0.22 |
Female sex (n) | 11 | 12 | |
Male sex (n) | 12 | 12 | |
Age at measurement (week) | 1.1 ± 0.2 | 1.0 ± 0.3 | 0.51 |
Weight at 1 wk. (g) | 3271 ± 298 | 4024 ± 361 | < 0.001 |
Length at 1 wk. (cm) | 51.1 ± 1.2 | 52.4 ± 1.3 | 0.001 |
% fat mass at 1 wk. | 6.5 ± 2.7 | 17.6 ± 1.6 | < 0.001 |
BMI at 1 wk. (kg/m2) | 12.5 ± 0.8 | 14.6 ± 1.1 | < 0.001 |
Fat mass index at 1 wk. (kg/m2) | 0.82 ± 0.36 | 2.57 ± 0.36 | < 0.001 |
Fat-free mass index at 1 wk. (kg/m2) | 11.7 ± 0.7 | 12.1 ± 0.8 | 0.12 |
Maternal characteristics | |||
Age (year) | 30.6 ± 3.3 | 30.6 ± 4.1 | 0.98 |
Pre-pregnancy BMI2 (kg/m2) | 22.6 ± 3.3 | 22.6 ± 3.1 | 0.96 |
BMIc (kg/m2) | 26.0 ± 3.6 | 26.7 ± 3.3 | 0.47 |
% fat massc | 33.8 ± 5.2 | 33.9 ± 5.2 | 0.98 |
Fat mass indexc (kg/m2) | 8.9 ± 2.5 | 9.2 ± 2.5 | 0.72 |
Fat-free mass indexc (kg/m2) | 17.1 ± 1.6 | 17.5 ± 1.3 | 0.26 |
HOMA-IRc | 1.7 ± 0.7 | 2.1 ± 0.9 | 0.74 |
Glycaemiac (mmol/L) | 4.7 ± 0.3 | 4.8 ± 0.2 | 0.12 |
Paternal characteristics | |||
Age (year) | 33.9 ± 5.0 | 32.8 ± 4.4 | 0.43 |
BMIc (kg/m2) | 25.5 ± 4.3 | 25.3 ± 4.7 | 0.47 |
% fat massc | 23.7 ± 10.0 | 23.9 ± 8.8 | 0.98 |
Fat mass indexc (kg/m2) | 6.4 ± 3.8 | 6.3 ± 3.6 | 0.94 |
Fat-free mass indexc (kg/m2) | 19.1 ± 1.6 | 18.9 ± 1.8 | 0.70 |