Table 1.
Clinical and demographic characteristics of entire study cohort.
| Any ROP (N= 526) |
No ROP (N =828) |
P-value | |
|---|---|---|---|
| Female (N, %) | 279 (53.0 %) | 378 (45.7%) | 0.008 |
| Birth Weight (Mean ± SD) | 904.6 ± 279.5g | 1250.7 ± 342.1 g | <0.001 |
| Gestational Age (Mean ± SD) | 27.2 ± 2.1 wks | 29.7 ± 2.3 wks | <0.001 |
| Multiple gestation (N, %) | 226 (43.0%) | 407 (49.2%) | 0.026 |
| Assisted conception (N, %) | 107 (20.3%) | 171 (20.7%) | 0.891 |
| Mechanical ventilation (N, %) | 289 (54.9%) | 207 (25.0%) | <0.001 |
| Sepsis (N, %) | 79 (15.0%) | 36 (4.3%) | <0.001 |
| Intraventricular hemorrhage (N, %) | 92 (17.5%) | 69 (8.3%) | <0.001 |
| Bronchopulmonary dysplasia (N, %) | 34 (6.5%) | 14 (1.7%) | <0.001 |
| Necrotizing enterocolitis (N, %) | 56 (10.6 %) | 28 (3.4%) | <0.001 |
| Race/Ethnicity | 0.002 | ||
| White non-Hispanic (N, %) | 239 (45.4%) | 369 (44.6%) | |
| Black non-Hispanic (N, %) | 73 (13.9%) | 128 (15.5%) | |
| Hispanic (N, %) | 46 (8.7%) | 34 (4.1%) | |
| Asian (N, %) | 40 (7.6%) | 49 (5.9%) | |
| Other race/ethnicity (N, %) | 128 (24.3%) | 248 (30.0%) |
Data regarding clinical and demographic risk factors are shown for infants with vs. without retinopathy of prematurity (ROP). P-values are calculated using two-tailed t-test for continuous variables and chi-square test for categorical variables.