Table 2 Characteristics of the infants examined in this study.
Total (n = 418) | TR-ROP (n = 76) | Mild ROP (n = 119) | No ROP (n = 223) | P-value | |
|---|---|---|---|---|---|
PMA of ROP maturation, mean (SD), week | — | 35.5 (2.3) | 35.6 (2.7) | — | 0.68* |
Predictive factors | |||||
Baseline | |||||
GA, mean (SD), week | 28.8 (3.0) | 24.8 (1.6) | 27.7 (2.3) | 30.8 (1.8) | <0.0001† |
BW, mean (SD), g | 1134 (453) | 636 (206) | 929 (291) | 1414 (375) | <0.0001† |
Male, No. (%) | 221 (53) | 44 (58) | 63 (53) | 115 (52) | 0.75‡ |
Circulatory function | |||||
LCC, No. (%) | 95 (23) | 50 (66) | 34 (29) | 11 (5) | <0.0001‡ |
Sepsis, No. (%) | 36 (9) | 20 (26) | 9 (8) | 7 (3) | <0.0001‡ |
PDA ligation, No. (%) | 42 (10) | 20 (26) | 15 (13) | 7 (3) | <0.0001‡ |
Transfusion, No. (%) | 130 (31) | 62 (82) | 45 (38) | 23 (10) | <0.0001‡ |
Pulmonary function | |||||
Use history of oxygen, No. (%) | 309 (74) | 75 (99) | 108 (91) | 126 (57) | <0.0001‡ |
CPAP, No. (%) | 138 (33) | 56 (74) | 39 (33) | 43 (19) | <0.0001‡ |
BPD, No. (%) | 120 (29) | 60 (79) | 41 (34) | 19 (9) | <0.0001‡ |
Circulation in CNS | |||||
IVH, No. (%) | 62 (15) | 25 (33) | 26 (22) | 11 (5) | <0.0001‡ |
PVL, No. (%) | 23 (6) | 8 (11) | 8 (7) | 7 (3) | 0.048‡ |
Growth | |||||
Weight gain at 6 weeks after birth, mean (SD), g | 443 (278) | 227 (137) | 374 (195) | 593 (292) | <0.0001† |
Weight gain rate, mean (SD), g/day | 10.5 (10.5) | 3.1 (7.4) | 6.5 (9.4) | 15.0 (9.7) | <0.0001† |
