Document Detail

The World Health Organization Multinational Study of Breast-feeding and Lactational Amenorrhea. I. Description of infant feeding patterns and of the return of menses. World Health Organization Task Force on Methods for the Natural Regulation of Fertility.
MedLine Citation:
PMID:  9757873     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To detect differences between populations in both infant feeding practices and the duration of lactational amenorrhea, if they exist. DESIGN: Prospective, nonexperimental, longitudinal follow-up study. SETTING: Five developing and two developed countries. PATIENT(S): Four thousand one hundred eighteen breast-feeding mothers and their infants. INTERVENTION(S): Breast-feeding women collected ongoing information about infant feeding and family planning practices, plus the return of menses. Fortnightly follow-up occurred in the women's homes. MAIN OUTCOME MEASURE(S): Breast-feeding frequency by day (and by night); 24-hour breast-feeding duration, percent of all infant feedings that were milk/milk-based (and solid/semisolid foods); time until the end of full breast-feeding; time until regular supplementation; and time until the end of lactational amenorrhea. RESULT(S): Differences between the centers in the duration of amenorrhea were substantial, ranging from a median of 4 months in New Delhi (India) to 9 months in Chengdu (China). Women in developed countries (but also women in Chengdu) were more likely to delay supplementation (for up to 5 months), whereas women in Santiago (Chile), Guatemala City (Guatemala), and Sagamu (Nigeria) started supplements much earlier, sometimes as early as 1 week after birth. CONCLUSION(S): Both breast-feeding behavior and the duration of lactational amenorrhea vary markedly across settings, indicating that breast-feeding promotion and family planning advice should be site- and culture-specific.
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Publication Detail:
Type:  Clinical Trial; Controlled Clinical Trial; Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Fertility and sterility     Volume:  70     ISSN:  0015-0282     ISO Abbreviation:  Fertil. Steril.     Publication Date:  1998 Sep 
Date Detail:
Created Date:  1998-10-09     Completed Date:  1998-10-09     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0372772     Medline TA:  Fertil Steril     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  448-60     Citation Subset:  IM    
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MeSH Terms
Amenorrhea / physiopathology*
Breast Feeding*
Follow-Up Studies
Infant Nutritional Physiological Phenomena*
Infant, Newborn
International Cooperation
Lactation / physiology*
Menstrual Cycle / physiology*
Prospective Studies
World Health Organization

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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