Male Disadvantage in Oxidative Stress-Associated Complications of Prematurity: A Systematic Review, Meta-Analysis and Meta-Regression

A widely accepted concept is that boys are more susceptible than girls to oxidative stress-related complications of prematurity, including bronchopulmonary dysplasia (BPD), retinopathy of prematurity (ROP), necrotizing enterocolitis (NEC), intraventricular hemorrhage (IVH), and periventricular leuko...

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Main Authors: Elke van Westering-Kroon, Maurice J Huizing, Eduardo Villamor-Martínez, Eduardo Villamor
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Antioxidants
Subjects:
Online Access:https://www.mdpi.com/2076-3921/10/9/1490
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author Elke van Westering-Kroon
Maurice J Huizing
Eduardo Villamor-Martínez
Eduardo Villamor
author_facet Elke van Westering-Kroon
Maurice J Huizing
Eduardo Villamor-Martínez
Eduardo Villamor
author_sort Elke van Westering-Kroon
collection DOAJ
description A widely accepted concept is that boys are more susceptible than girls to oxidative stress-related complications of prematurity, including bronchopulmonary dysplasia (BPD), retinopathy of prematurity (ROP), necrotizing enterocolitis (NEC), intraventricular hemorrhage (IVH), and periventricular leukomalacia (PVL). We aimed to quantify the effect size of this male disadvantage by performing a systematic review and meta-analysis of cohort studies exploring the association between sex and complications of prematurity. Risk ratios (RRs) and 95% CIs were calculated by a random-effects model. Of 1365 potentially relevant studies, 41 met the inclusion criteria (625,680 infants). Male sex was associated with decreased risk of hypertensive disorders of pregnancy, fetal distress, and C-section, but increased risk of low Apgar score, intubation at birth, respiratory distress, surfactant use, pneumothorax, postnatal steroids, late onset sepsis, any NEC, NEC > stage 1 (RR 1.12, CI 1.06–1.18), any IVH, severe IVH (RR 1.28, CI 1.22–1.34), severe IVH or PVL, any BPD, moderate/severe BPD (RR 1.23, CI 1.18–1.27), severe ROP (RR 1.14, CI 1.07–1.22), and mortality (RR 1.23, CI 1.16–1.30). In conclusion, preterm boys have higher clinical instability and greater need for invasive interventions than preterm girls. This leads to a male disadvantage in mortality and short-term complications of prematurity.
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spelling doaj.art-bd7b534cf64a40bf9e4890c5774fce5b2023-11-22T11:49:37ZengMDPI AGAntioxidants2076-39212021-09-01109149010.3390/antiox10091490Male Disadvantage in Oxidative Stress-Associated Complications of Prematurity: A Systematic Review, Meta-Analysis and Meta-RegressionElke van Westering-Kroon0Maurice J Huizing1Eduardo Villamor-Martínez2Eduardo Villamor3Department of Pediatrics, Maastricht University Medical Center (MUMC+), School for Oncology and Developmental Biology (GROW), 6229HA Maastricht, The NetherlandsDepartment of Pediatrics, Maastricht University Medical Center (MUMC+), School for Oncology and Developmental Biology (GROW), 6229HA Maastricht, The NetherlandsDepartment of Pediatrics, Maastricht University Medical Center (MUMC+), School for Oncology and Developmental Biology (GROW), 6229HA Maastricht, The NetherlandsDepartment of Pediatrics, Maastricht University Medical Center (MUMC+), School for Oncology and Developmental Biology (GROW), 6229HA Maastricht, The NetherlandsA widely accepted concept is that boys are more susceptible than girls to oxidative stress-related complications of prematurity, including bronchopulmonary dysplasia (BPD), retinopathy of prematurity (ROP), necrotizing enterocolitis (NEC), intraventricular hemorrhage (IVH), and periventricular leukomalacia (PVL). We aimed to quantify the effect size of this male disadvantage by performing a systematic review and meta-analysis of cohort studies exploring the association between sex and complications of prematurity. Risk ratios (RRs) and 95% CIs were calculated by a random-effects model. Of 1365 potentially relevant studies, 41 met the inclusion criteria (625,680 infants). Male sex was associated with decreased risk of hypertensive disorders of pregnancy, fetal distress, and C-section, but increased risk of low Apgar score, intubation at birth, respiratory distress, surfactant use, pneumothorax, postnatal steroids, late onset sepsis, any NEC, NEC > stage 1 (RR 1.12, CI 1.06–1.18), any IVH, severe IVH (RR 1.28, CI 1.22–1.34), severe IVH or PVL, any BPD, moderate/severe BPD (RR 1.23, CI 1.18–1.27), severe ROP (RR 1.14, CI 1.07–1.22), and mortality (RR 1.23, CI 1.16–1.30). In conclusion, preterm boys have higher clinical instability and greater need for invasive interventions than preterm girls. This leads to a male disadvantage in mortality and short-term complications of prematurity.https://www.mdpi.com/2076-3921/10/9/1490preterm birthoxidative stresssex differencesmale disadvantagefemale advantagebronchopulmonary dysplasia
spellingShingle Elke van Westering-Kroon
Maurice J Huizing
Eduardo Villamor-Martínez
Eduardo Villamor
Male Disadvantage in Oxidative Stress-Associated Complications of Prematurity: A Systematic Review, Meta-Analysis and Meta-Regression
Antioxidants
preterm birth
oxidative stress
sex differences
male disadvantage
female advantage
bronchopulmonary dysplasia
title Male Disadvantage in Oxidative Stress-Associated Complications of Prematurity: A Systematic Review, Meta-Analysis and Meta-Regression
title_full Male Disadvantage in Oxidative Stress-Associated Complications of Prematurity: A Systematic Review, Meta-Analysis and Meta-Regression
title_fullStr Male Disadvantage in Oxidative Stress-Associated Complications of Prematurity: A Systematic Review, Meta-Analysis and Meta-Regression
title_full_unstemmed Male Disadvantage in Oxidative Stress-Associated Complications of Prematurity: A Systematic Review, Meta-Analysis and Meta-Regression
title_short Male Disadvantage in Oxidative Stress-Associated Complications of Prematurity: A Systematic Review, Meta-Analysis and Meta-Regression
title_sort male disadvantage in oxidative stress associated complications of prematurity a systematic review meta analysis and meta regression
topic preterm birth
oxidative stress
sex differences
male disadvantage
female advantage
bronchopulmonary dysplasia
url https://www.mdpi.com/2076-3921/10/9/1490
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AT eduardovillamormartinez maledisadvantageinoxidativestressassociatedcomplicationsofprematurityasystematicreviewmetaanalysisandmetaregression
AT eduardovillamor maledisadvantageinoxidativestressassociatedcomplicationsofprematurityasystematicreviewmetaanalysisandmetaregression