Myrthe J C S Peelen1, Brenda M Kazemier2, Anita C J Ravelli2,3, Christianne J M de Groot2, Joris A M van der Post2, Ben W J Mol4, Marjolein Kok2, Petra J Hajenius2. 1. Department of Obstetrics and Gynecology, Amsterdam UMC, 1105 AZ, Amsterdam, the Netherlands. m.j.peelen@amsterdamumc.nl. 2. Department of Obstetrics and Gynecology, Amsterdam UMC, 1105 AZ, Amsterdam, the Netherlands. 3. Department of Medical Informatics, Amsterdam UMC, 1105 AZ, Amsterdam, the Netherlands. 4. Department of Obstetrics and Gynecology, Monash University, Clayton, VIC, Australia.
Abstract
OBJECTIVE: To study the impact of fetal gender on the risk of spontaneous preterm birth in various ethnicities. STUDY DESIGN: National cohort study in which all singleton live births from 25+0 weeks onwards without congenital anomalies were included of African, Asian, and Mediterranean women (1999-2010). Our primary outcome measure was preterm birth before 37 weeks. Per ethnic group, male and female neonates were compared. RESULT: In each ethnic group, male fetuses were at increased risk of preterm birth (adjusted odds ratio (aOR) 1.63 for African, aOR 1.71 for Asian, and aOR 1.84 for Mediterranean males). The population-attributable risk of male gender on spontaneous preterm birth is lower in African women (3.9%) than in Asian (10.3%) and Mediterranean women (9.0%). CONCLUSION: Male fetal gender is associated with spontaneous preterm birth in African, Asian, and Mediterranean women, but the total impact of ethnicity on spontaneous preterm birth rate is different.
OBJECTIVE: To study the impact of fetal gender on the risk of spontaneous preterm birth in various ethnicities. STUDY DESIGN: National cohort study in which all singleton live births from 25+0 weeks onwards without congenital anomalies were included of African, Asian, and Mediterranean women (1999-2010). Our primary outcome measure was preterm birth before 37 weeks. Per ethnic group, male and female neonates were compared. RESULT: In each ethnic group, male fetuses were at increased risk of preterm birth (adjusted odds ratio (aOR) 1.63 for African, aOR 1.71 for Asian, and aOR 1.84 for Mediterranean males). The population-attributable risk of male gender on spontaneous preterm birth is lower in African women (3.9%) than in Asian (10.3%) and Mediterranean women (9.0%). CONCLUSION: Male fetal gender is associated with spontaneous preterm birth in African, Asian, and Mediterranean women, but the total impact of ethnicity on spontaneous preterm birth rate is different.
Authors: Jelle M Schaaf; Sophie M S Liem; Ben Willem J Mol; Ameen Abu-Hanna; Anita C J Ravelli Journal: Am J Perinatol Date: 2012-10-11 Impact factor: 1.862
Authors: Hannah Blencowe; Simon Cousens; Mikkel Z Oestergaard; Doris Chou; Ann-Beth Moller; Rajesh Narwal; Alma Adler; Claudia Vera Garcia; Sarah Rohde; Lale Say; Joy E Lawn Journal: Lancet Date: 2012-06-09 Impact factor: 79.321
Authors: Myrthe J C S Peelen; Brenda M Kazemier; Anita C J Ravelli; Christianne J M De Groot; Joris A M Van Der Post; Ben W J Mol; Petra J Hajenius; Marjolein Kok Journal: Acta Obstet Gynecol Scand Date: 2016-06-13 Impact factor: 3.636