Table 2. Fluid Balance Stratified by Mechanical Ventilation on Postnatal Day 14a.
| Fluid exposure | Median (IQR), % | P value | ||
|---|---|---|---|---|
| Total cohort (N = 874) | Postnatal day 14 mechanical ventilation | |||
| Yes (n = 458) | No (n = 416) | |||
| Fluid balance in the first 14 d | ||||
| Peak | 11 (4 to 20) | 15 (8 to 24) | 8 (2 to 14) | <.001 |
| Lowest | −10 (−15 to −6) | −10 (−15 to −5) | −11 (−15 to −7) | .04 |
| Postnatal fluid balance at | ||||
| Day 3 | −7 (−12 to 0) | −5 (−11 to 0) | −8 (−12 to −3) | <.001 |
| Day 7 | −3 (−8 to −4) | −4 (−9 to 2) | −1 (−7 to 7) | <.001 |
| Days to regain birth weight | 6 (8 to 10) | 7 (5 to 10) | 8 (6 to 11) | <.001 |
a
Estimated from a Wilcoxon rank sum test.