TABLE 2.
Comparison of Secondary Outcomes by Severity of IVH in the Matched Cohort
| Severe IVH | Nonsevere IVH | OR (95% CI) | P | |
|---|---|---|---|---|
| ROP treated | ||||
| No. neonates with ROP evaluated | 2250 | 23 077 | — | — |
| No. matched pairs used in analysis | 1470 | 1470 | — | — |
| No | 1274 (86.7%) | 1294 (88.0%) | — | — |
| Yes | 196 (13.3%) | 176 (12.0%) | 1.13 (0.91–1.41) | .27 |
| CLD | ||||
| No. neonates still in hospital at ≥36 wk CGA | 1880 | 18 174 | — | — |
| No. matched pairs used in analysis | 1168 | 1168 | — | — |
| No | 493 (42.2%) | 500 (42.8%) | — | — |
| Yes | 675 (57.8%) | 668 (57.2%) | 1.03 (0.87–1.21) | .77 |
| PVL | ||||
| No. neonates with imaging | 4510 | 30 135 | — | — |
| No. matched pairs used in analysis | 2841 | 2841 | — | — |
| No | 2508 (88.3%) | 2760 (97.2%) | — | — |
| Yes | 333 (11.7%) | 81 (2.9%) | 4.52 (3.53–5.80) | <.001 |
—, not applicable.