Document Detail


Influence of number of pregnancies and total breast-feeding time on bone mineral density.
MedLine Citation:
PMID:  12199413     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To analyze how the number of pregnancies and total breast-feeding time influence bone mineral density. METHODS: 50 healthy women aged 35 to 40 years were studied. Weight, height, number of term pregnancies, time since last pregnancy and breast-feeding time were analyzed. They were divided in three groups as follows: I: nulligravidas; II: with term pregnancies, but no breast-feeding; III: with term pregnancies, with breast-feeding. Bone absorptiometry was done on all, at lumbar column and femur. The WHO criteria were used to define osteopenia and osteoporosis. Comparison among the groups was done with Student's t-test for independent samples, and simple regression analysis was done for number of gestations, total breast-feeding time, time since last birth, and T-score at lumbar column and femur. RESULTS: The women were divided as follows: 15 in group I, 15 in group II, and 20 in group III. The average age was 37.7 +/- 1.5 years. No differences were found among the three groups in analyzed variables, when comparing bone mineral density, T- and Z-scores in L1-L4 average, femoral neck, trochanter, and Ward's triangle. There was no correlation among the number of gestations, total breast-feeding time, time since last birth, or T-scores at lumbar column and femur. CONCLUSION: The number of pregnancies and breast-feeding time do not affect bone mineral density.
Authors:
Sebastián Carranza-Lira; Jaime Paz Mera
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  International journal of fertility and women's medicine     Volume:  47     ISSN:  1534-892X     ISO Abbreviation:  Int J Fertil Womens Med     Publication Date:    2002 Jul-Aug
Date Detail:
Created Date:  2002-08-29     Completed Date:  2003-01-16     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9706778     Medline TA:  Int J Fertil Womens Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  169-71     Citation Subset:  IM    
Affiliation:
Gynecologic Endocrinology Service, Hospital de Gineco Obstetricia Luis Castelazo Ayala, Instituto Mexicano del Seguro Social, México DF.
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MeSH Terms
Descriptor/Qualifier:
Adult
Bone Density*
Breast Feeding*
Female
Humans
Infant, Newborn
Pregnancy*
Pregnancy Trimester, Third
Regression Analysis
Time Factors

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


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