title: Neonatal sex ratio in pregnancies of adolescent mothers.
abstract: The authors have reviewed the sex ratio in 353 offspring of adolescent parturients based on a 5-year material of their department. The 174 males and 179 females provided a sex ratio of 97.2; less than the usual ratio of 106. Interestingly, females are prevalent not only among low-birth-weight but also among average-birth-weight babies of adolescents. The hypothesis is presented that the anatomy of the cervix and the chemical composition of the cervical mucus may affect the sex ratio in some manner.
authors.affiliation: Department of Obstetrics and Gynecology, Toldy Ferenc Hospital, Cegléd, Hungary.
authors.forename: A A
authors.initials: AA
authors.lastname: Jakobovits
authors.forename: L
authors.initials: L
authors.lastname: Zubek
mesh_terms: D000293:Adolescent; D001724:Birth Weight; D005260:Female; D005865:Gestational Age; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D012744:Sex Ratio