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OPEN
Received: 9 February 2017 Accepted: 14 June 2017 Published online: 21 July 2017
Gestational age-specific sex difference in mortality and morbidities of preterm infants: A nationwide study So-Yeon Shim1, Su Jin Cho1, Kyoung Ae Kong2 & Eun Ae Park 1 This study aims to determine whether male sex has adverse effect on mortality and morbidities in very low birth weight infants (VLBWI) 25 weeks of gestation. Although both sexes have similar risk for mortality, male sex remains an independent risk for major morbidities, especially at ≤25 weeks of gestation. The risk of each outcome for males has a specific pattern with increasing gestational age. Preterm birth is defined by the World Health Organization (WHO) as all births before 37 completed weeks of gestation1. Infants were divided according to birth weight into very low birth weight infants (VLBWIs; infants born with
OPEN
Received: 9 February 2017 Accepted: 14 June 2017 Published online: 21 July 2017
Gestational age-specific sex difference in mortality and morbidities of preterm infants: A nationwide study So-Yeon Shim1, Su Jin Cho1, Kyoung Ae Kong2 & Eun Ae Park 1 This study aims to determine whether male sex has adverse effect on mortality and morbidities in very low birth weight infants (VLBWI) 25 weeks of gestation. Although both sexes have similar risk for mortality, male sex remains an independent risk for major morbidities, especially at ≤25 weeks of gestation. The risk of each outcome for males has a specific pattern with increasing gestational age. Preterm birth is defined by the World Health Organization (WHO) as all births before 37 completed weeks of gestation1. Infants were divided according to birth weight into very low birth weight infants (VLBWIs; infants born with
