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Table 1 Patient characteristics

From: IGF1 gene is epigenetically activated in preterm infants with intrauterine growth restriction

  IUGR (n = 19) Non-IUGR (n = 37) P value
Gestational age (weeks), median [25%, 75%] 29.4 [28.0, 30.7] 29.3 [26.0, 31.1] 0.869
Body weight (g), median [25%, 75%] 720 [547, 987] 1226 [858, 1496] < 0.001
Body height (cm), median [25%, 75%] 31.1 [29.1, 35.8] 37.0 [33.8, 39.0] 0.003
Sex (male, n) 14 24 0.290
In vitro fertilization (n) 1 6 0.241
Hypertensive disorders of pregnancy (n) 9 3 0.001
Twin pregnancy (n) 1 10 0.202
Broncho pulmonary dysplasia (n) 12 18 0.086
Abnormal MRI findings(n) 1 10 0.241
Retinopathy of prematurity (n) 2 5 0.749
  1. The differences between groups were analyzed by Mann-Whitney U test or chi-square test