Odds ratios and 95% confidence intervals for oxygen requirement a 28 days and 36 weeks postgestational age, and retinopathy of prematurity (ROP), related to plasma ascorbic acid concentrations (30 unit increases) after adjustment for gestational age and CRIB score by logistic regression and at each time point
| Day | Oxygen at 28 days | Oxygen at 36 weeks | ROP | |||
|---|---|---|---|---|---|---|
| OR | 95% CI | OR | 95% CI | OR | 95% CI | |
| 2 | 0.685 | 0.421 to 1.117 | 0.840 | 0.530 to 1.330 | 0.859 | 0.458 to 1.1612 |
| 10 | 0.982 | 0.511 to 1.887 | 0.890 | 0.536 to 1.447 | 1.162 | 0.662 to 2.037 |
| 21 | 1.693 | 0.893 to 3.209 | 0.866 | 0.449 to 1.669 | 1.211 | 0.567 to 2.586 |
| 28 | 1.124 | 0.495 to 2.550 | 1.067 | 0.541 to 2.108 | 0.650 | 0.219 to 1.930 |