Table 1.
Comparison of demographic characteristics between two groups
| Data | NNO group (n=85) | ANO group (n=61) | t/χ2 | P |
|---|---|---|---|---|
| Gestational age (weeks) | 34.71 ± 1.12 | 34.34 ± 1.35 | 1.812 | 0.072 |
| Birthweight (g) | 2215.34 ± 117.82 | 2230.51 ± 115.07 | 0.775 | 0.440 |
| Boys [n (%)] | 51 (60%) | 45 (73.77%)/16 (26.23%) | 2.991 | 0.084 |
| IVF [n (%)] | 19 (22.35%) | 20 (32.79%) | 1.975 | 0.160 |
| Bayley Mental Index | 90.95 ± 2.91 | 70.28 ± 5.23 | 27.899 | <0.001 |
| Maternal age (years) | 31.02 ± 4.28 | 30.52 ± 4.41 | 0.687 | 0.493 |
| Maternal education (years) | 11.77 ± 5.34 | 11.86 ± 2.62 | 0.142 | 0.887 |
| Primipara [n (%)] | 71 (83.53%) | 49 (80.33%) | 0.249 | 0.618 |
| Prenatal Steroid Use [n (%)] | 46 (54.12%) | 33 (54.1%) | 0 | 0.998 |
| Cesarean Delivery [n (%)] | 30 (35.29%) | 19 (31.15%) | 0.274 | 0.601 |
| Premature Rupture of Membranes [n (%)] | 34 (40%) | 24 (39.34%) | 0.006 | 0.936 |
| Apgar score 1 min | 7.24 ± 2.11 | 7.25 ± 2.15 | 0.037 | 0.971 |
| Apgar score 5 min | 8.72 ± 1.51 | 8.62 ± 1.48 | 0.393 | 0.695 |
NNO: Normal Neurodevelopmental Outcome; ANO: Adverse Neurodevelopmental Outcome; IVF: in vitro fertilization.