Table 1 Characteristics of Pre-ETROP and Post-ETROP Groups
Pre-ETROP | Post-ETROP | ||
|---|---|---|---|
N = 29 | N = 53 | ||
Characteristic | Mean (SD) | Mean (SD) | p-value |
Age at birth, in weeks gestation | 26.3 (1.7) | 25.2 (1.38) | 0.0012 |
Interval between birth and examination 1, in days | 36 (9.54) | 49.5 (18.76) | 0.0004 |
Weight at birth, in grams | 888 (257.79) | 707 (194.79) | 0.0007 |
Interval between birth and laser surgery, in days | 73 (12.6) | 80 (18.34) | 0.09 |
Interval between examination 1 and laser surgery, in days | 37 (13.72) | 30 (18.91) | 0.05 |
Number of laser spots, right eye | 1595 (703.2) | 1698 (499.4) | 0.46 |
Number of laser spots, left eye | 1686 (683.63) | 1573 (491.32) | 0.41 |
Multiparity | 5 | 8 | 0.99 |