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Table 1 A comparison of the mean demographic variables between the infants in the case and control groups and their relationships

From: Correlation between serum vitamin D level and neonatal indirect hyperbilirubinemia

Variables Study group (n = 30) Control group (n = 30) P
Male/Female (n) 17/13 15/15 0.605
Postnatal age (day) 5.6 ± 1.75 (3–10) 6.26 ± 1.87 (3–10) 0.160
Birth weight (gr) 3266 ± 365 (2700–3950) 3287 ± 326 (2850–3820) 0.815
Postnatal weight (gr) 3215 ± 378 (2500–4100) 3244 ± 330 (2800–3800) 0.753
Head circumference (cm) 34.9 ± 1.01 (33–37) 34.98 ± 1.06 (33–37) 0.757
Height (cm) 50.43 ± 1.75 (46–53) 50.00 ± 1.41 (47–52) 0.297
Gestational age (week) 38.2 ± 1.3 (37–40) 38.4 ± 0.7 (37–40) 0.910
Delivey type: SVD/ C/S (n) 19/11 16/14 0.432
Breast feeding [n (%)] 30 (100) 30 (100) 0.321
  1. SVD: Spontaneous vaginal delivery; C/S: Cesarean section
  2. T-test and frequency and percentage are the tests used in this table
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