title: Postpartum amenorrhoea and breast-feeding in a Danish sample.
abstract: The duration of postpartum amenorrhoea was studied in a Danish sample of 361 women. The median duration of amenorrhoea was 17 weeks. The 25th and 75th percentiles were 10 and 30 weeks, respectively. A significant correlation was found between the duration of postpartum amenorrhoea and of breast-feeding. However, lactation for more than 9 months did not extend the duration of amenorrhoea. Menstruation before weaning occurred in 57% of the women, and 43% terminated breast-feeding before the first menstruation. Four weeks after weaning menstruation had returned in 79% and by 8 weeks after in 93% of the mothers. At 6 months postpartum, frequency of breast-feeding, and of night-time feeding were determinants of amenorrhoea.
authors.affiliation: Department of Obstetrics and Gynaecology, Central Hospital, Hillerød, Denmark.
authors.forename: V
authors.initials: V
authors.lastname: Vestermark
authors.forename: C K
authors.initials: CK
authors.lastname: Høgdall
authors.forename: G
authors.initials: G
authors.lastname: Plenov
authors.forename: M
authors.initials: M
authors.lastname: Birch
mesh_terms: D000293:Adolescent; D000328:Adult; D000568:Amenorrhea / Q000453:epidemiology* / Q000209:etiology*; D001942:Breast Feeding; D003718:Denmark / Q000453:epidemiology; D005260:Female; D006801:Humans; D008598:Menstruation; D010298:Parity; D049590:Postpartum Period; D012044:Regression Analysis; D012494:Sampling Studies; D013997:Time Factors; D014886:Weaning