Table 1.
Characteristics of infants by postnatal antibiotic exposure (n = 120).
| Mean ±SD or n (%) | 1P-value | |||
|---|---|---|---|---|
| Characteristic | All (N = 120) | No antibiotics (N = 94) | Antibiotics (N = 26) | |
| Maternal age | 32.3 ± 3.5 | 32.5 ± 3.6 | 31.6 ± 3.1 | 0.26 |
| Gestational age (week ± day) | 39.3 ± 1.2 | 39.2 ± 1.2 | 39.5 ± 0.8 | 0.45 |
| Sampling time | 49.5 ± 7.7 | 49.4 ± 7.8 | 50.2 ± 7.2 | 0.49 |
| Birth weight (g) | 3334.0 ± 394.2 | 3327.0 ± 381.4 | 3358.5 ± 447.0 | 0.96 |
| Infant weight at 6 weeks(g) | 5697.6 ± 854.3 | 5575.6 ± 838.5 | 6139.7 ± 772.5 | 0.01 |
| Maternal pre-pregnancy BMI | 22.8 ± 3.3 | 22.6 ± 3.4 | 23.3 ± 3.1 | 0.33 |
| Gender | 0.50 | |||
| Male (%) | 70 (58.3) | 53 (56.4) | 17 (65.4) | |
| Female (%) | 50 (41.7) | 41 (43.6) | 9 (34.6) | |
| Delivery mode | 0.16 | |||
| Vaginally delivered | 81 (67.5) | 60 (63.8) | 21 (81.8) | |
| Cesarean delivered | 39 (32.5) | 34 (36.2) | 5 (19.2) | |
| Feeding pattern | 0.81 | |||
| Exclusively breastfed | 85 (70.3) | 67 (71.3) | 18 (69.2) | |
| Mixed-fed | 35 (29.7) | 27 (28.7) | 8 (30.8) | |
| Supplement of probiotics | 51 (42.5) | 41 (43.6) | 10 (38.5) | 0.66 |
1P-value determined by Student’s t-test, Mann-Whitney U-test or Fisher’s exact test.