TABLE 4.
Baseline Characteristics of Infants With Early HRF Based on Exposure to iNO During the Neonatal Period
| Characteristics | Exposed to iNO, n = 338 | Not Exposed to iNO, n = 1394 | P |
|---|---|---|---|
| Birth wt, g, mean ± SD | 652.4 ± 150.8 | 667.5 ± 143.3 | .085 |
| GA, wk, mean ± SD | 24.4 ± 1.2 | 24.4 ± 1.1 | .8154 |
| Male sex, n (%) | 185 of 338 (54.7) | 761 of 1393 (54.6) | .9727 |
| Small for GA, n (%) | 57 of 338 (16.9) | 151 of 1393 (10.8) | .0022 |
| ROM, n (%) | |||
| >18 h | 100 of 320 (31.3) | 236 of 1363 (17.3) | <.0001 |
| >24 h | 88 of 314 (28.0) | 201 of 1352 (14.9) | <.0001 |
| >120 h | 63 of 316 (19.9) | 113 of 1352 (8.4) | <.0001 |
| Race, n (%) | |||
| AA | 112 of 338 (33.1) | 573 of 1394 (41.1) | .0072 |
| White | 167 of 338 (49.4) | 555 of 1394 (39.8) | .0013 |
| Hispanic | 44 of 338 (13.0) | 206 of 1394 (14.8) | .4088 |
| Other | 13 of 338 (3.8) | 50 of 1394 (3.6) | .8193 |
| Chorioamnionitis, n (%) | 60 of 331 (18.1) | 184 of 1385 (13.3) | .0235 |
| ANS, n (%) | 226 of 334 (67.7) | 757 of 1388 (54.5) | <.0001 |
| Delivery by cesarean, n (%) | 231 of 337 (68.5) | 910 of 1392 (65.4) | .27 |
| Apgar scores <4 at 1 min, n (%) | 231 of 334 (69.2) | 860 of 1380 (62.3) | .0197 |
| Apgar scores <4 at 5 min, n. (%) | 91 of 334 (27.2) | 336 of 1382 (24.3) | .2659 |