Table 2.
Baseline characteristics of the cohort.
| Characteristic | Low-grade IVH (n = 25) | No IVH (n = 40) | P value |
|---|---|---|---|
| male/female a | 11/14 | 12/18 | 0.765 |
| natural birth /C-sectiona | 3/12 | 9/13 | 0.842 |
| GA at birth (weeks)b | 30.92 ± 2.16 | 30.85 ± 2.01 | 0.881 |
| BW (g)b | 1397.32 ± 238.36 | 1484.03 ± 348.95 | 0.239 |
| Apgar 1 minb | 6 ± 1.68 | 6.1 ± 1.65 | 0.814 |
| Apgar 5 minb | 6.64 ± 1.55 | 7 ± 1.16 | 0.833 |
| PMA at MRI (weeks)b | 39.01 ± 1.01 | 39.07 ± 1.19 | 0.901 |
| BW at MRI (g)b | 2652.40 ± 277.51 | 2677.90 ± 257.90 | 0.708 |
| Days of intubation (days) | 31 (14–38) | 27 (5–29) | 0.051 |
| Hydrocortisone treatment (n) | 7 | 11 | 0.52 |
| Single pregnancy/multiple pregnancya | 20/5 | 31/9 | 0.811 |
| Maternal educational background: High school diploma /Noa | 8/17 | 13/27 | 0.967 |
| Tobacco consumption during pregnancy/Noa | 11/14 | 19/21 | 0.783 |
GA, gestational age; PMA, post-menstrual age; BW, birth weight.
(a) with X2 test; (b) with t-test.