Table 1. Peri- and postnatal characteristics of the 327 newborns studied.
| Characteristics | Control group (n=173) | Butantan group (n=154) | p value |
|---|---|---|---|
| Birth weight, g | 990.65±245.70 | 996.01±235.84 | 0.84 |
| Gestational age, weeks | 28.03±2.07 | 28.14±2.16 | 0.64 |
| Sex, n (%) | |||
| Male | 86 (49.71) | 84 (54.55) | 0.38 |
| Female | 87 (50.29) | 70 (45.45) | 0.38 |
| Prenatal corticosteroid, n (%) | 94 (54.34) | 79 (51.30) | 0.58 |
| Vaginal birth, n (%) | 66 (38.15) | 61 (39.66) | 0.79 |
| C-section birth, n (%) | 107 (61.85) | 93 (60.93) | 0.79 |
| 1’ Apgar | 5.2±2.4 | 4.5±2.3 | 0.006 |
| 5’ Apgar | 7.9±1.5 | 7.4±1.7 | 0.02 |
| AGI, n (%) | 125 (72.25 ) | 121 (78.57) | 0.19 |
| SGA, n (%) | 48 (27.75) | 33 (21.43) | 0.19 |
| LGA, n (%) | 0 | 0 | - |
| BW <750g, n (%) | 32 (18.5) | 23 (14.9) | 0.69 |
| BW ≥750g and <1,000g, n (%) | 61 (35.26) | 57 (37.01) | 0.69 |
| BW ≥1,000g and <1,500g, n (%) | 80 (46.24) | 74 (48.05) | 0.69 |
BW, Apagar score, and gestational age values are expressed as mean ± standard deviation. Continuous variables were analyzed using the Student’s t or Mann-Whitney test, as appropriate. Qualitative variables were analyzed using the χ2 or Fischer’s exact test, as appropriate. AGA: appropriate for gestational age; SGA: small for gestational age; LGA: large for gestational age; BW: birth weight.