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Table 1 Demographic and clinical data description

From: Oral vitamin A supplementation for ROP prevention in VLBW preterm infants

 Vitamin A
Supplemented
infants
N = 31
Control infants
N = 31
P
Maternal age, years, mean (SD)33 (7)32 (4.8)0.6
Gestational age, weeks, mean (SD)29 (2.33)29 (2.66)0.6
Anthropometric data at birth,
 Weight (g), mean (SD)1134 (327)1097 (234)0.6
 Length, (cm) mean (SD)36.5 (3.4)36.4 (2.8)0.9
 Head circumference, (cm) mean (SD)25.8 (2.5)25.9 (2.3)0.8
SGA n (%)7 (22.5)7 (22.5)1
IUGR n (%)4 (12.9)7 (22.5)0.3
Male n (%)16 (51.6)19 (62.5)0.4
Female n (%)15 (48.4)12 (37.5)
Mode of delivery, n (%)
 vaginal delivery5 (16)9 (28.1)0.2
 caesarean section26 (84)22 (71.9)
Apgar score at 1, mean (SD)5.1 (2.4)5.5 (2.1)0.5
Apgar score at 5, mean (SD)7.2 (2.2)7.5 (1.6)0.6
Stay in NICU, days, median (IQR)57 (44–107)69 (45–100)0.6
Oxygen therapy, days, median (IQR)26 (10–56)27 (12–56)0.7
Mechanical ventilation, days, median (IQR)3 (1–7)7 (1–17)0.4
CPAP, days, median (IQR)9.5 (4–33)12.5 (6–41)0.6
BPD n (%)13 (41.9)17 (54.9)0.4
NEC n (%)0 (0)1 (3.3)0.3
LOS n (%)1 (3.2)1 (3.2)1
IVH grade ≥ 2 n (%)04 (12.9)0.1
ROP n (%)
No ROP22 (71.0)21 (67.7) 
ROP grade 19 (29.0)4 (12.9)0.018
ROP grade ≥ 2 (with plus disease)06 (19.4)
ROP grade ≥ 2 n (%)
No treatment 1 (16.7) 
Laser 2 (33.3) 
Anti-VEGF 1 (16.7) 
Anti-VEGF and laser 2 (33.3) 
  1. SD standard deviation, IQR interquartile range, SGA small for gestational age, IUGR intrauterine growth restriction, NICU neonatal intensive care unit, CPAP continuous positive airway pressure, BPD bronchopulmonary dysplasia, NEC necrotizing enterocolitis, LOS late-onset sepsis, IVH intraventricular haemorrhage, ROP retinopathy of prematurity, VEGF vascular endothelial growth factor