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Table 3 Sub-analysis of clinical characteristics of neonates born inside (inborn) vs outside (outborn)

From: Morbidities & outcomes of a neonatal intensive care unit in a complex humanitarian conflict setting, Hajjah Yemen: 2017-2018

Clinical characteristics and outcomes Inborn (n = 259) Outborn (n = 717) OR (95% CI) P-value
Age on admission
− ≤ 24 h 166 (64.1%) 383 (53.4%) 1.56 (1.16–2.09) 0.003
− 2 to 28 days 93 (35.9%) 334 (46.6%)   
Estimated Gestational Age
− < 37 weeks 124 (47.9%) 382 (53.3%) 1.24 (0.93–1.65) 0.147
− ≥ 37 weeks 135 (52.1%) 335 (46.7%)   
Mode of delivery
− Vaginal delivery 132 (51.0%) 681 (95.0%) 18.20 (12.03–27.54) <  0.001
− Caesarean section 127 (49.0%) 36 (5.0%)   
Admission diagnosis **
− Prematurity 77 (29.7%) 264 (36.8%) 1.38 (1.01–1.87) 0.048
− Perinatal asphyxia 61 (23.6%) 275 (38.4%) 2.02 (1.46–2.79) <  0.001
− Neonatal jaundice 67 (25.9%) 116 (16.2%) 0.55 (0.39–0.78) 0.001
− Neonatal sepsis 48 (18.5%) 109 (15.2%) 0.79 (0.54–1.15) 0.236
− Congenital anomalies 5 (1.9%) 29 (4.1%) 2.14 (0.82–5.59) 0.119
− Others 23 (8.9%) 9 (1.3%) 0.13 (0.06–0.29) <  0.001
Length of Stay (LoS) in NICU
− Median (IQR) in days 3.00 (6.50) 4.00 (8.00) 1.00 (0.00–2.00) # 0.001 #
  1. Abbreviations: OR, Odds Ratio. CI, Confidence Interval
  2. ** More than one admission diagnosis could apply
  3. # Difference in median, Confidence interval and p-value for the difference in the median using Mann-Whitney U-test