Table 1.
Gender Proportions, Body Weight and Length, and Feeding Method for Infants Delivered Vaginally or by Caesarian Section
| Vaginal Delivery n = 251 | Caesarian Section n = 381 | p-value | |
|---|---|---|---|
| Boys/Girls (numbers) | 16/10 | 19/21 | 0.264 |
| Length (cm)2 | |||
| at birth | 51.1 (50.0–52.2) | 49.2 (48.4–50.0) | 0.849 |
| at 3 mos of age | 61.3 (60.4–62.4) | 60.2 (59.2–60.8) | 0.100 |
| Weight (g)2 | |||
| at birth | 3603 (3394–3813) | 3425 (3190–3660) | 0.202 |
| at 3 mos of age | 6364 (5986–6742) | 6069 (5807–6331) | 0.221 |
| Breast-fed at 3 mos of age (%)3 | |||
| Exclusively or partially | 27 | 32 | 0.836 |
| Not at all | 73 | 68 | |
1
Numbers vary slightly for various analyses due to single missing values. Oral samples from four infants, three born by C-section and one vaginally, were not analyzed by microarray, because of low DNA yield.
2
Mean (95% CI limits). Differences of means were tested with Student’s independent t test after confirmation of a normal distribution.
3
Differences in proportions were tested with the Chi2-test.