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Published Online: 12 September 2018

Previous Adolescent Pregnancy and Breastfeeding Does Not Negatively Affect Bone Mineral Density at the Age of Peak Bone Mass

Publication: Breastfeeding Medicine
Volume 13, Issue Number 7

Abstract

Purpose: To determine bone mineral density (BMD) at the age of peak bone mass in women who previously experienced pregnancy and breastfeeding during adolescence.
Materials and Methods: In this retrospective study, female volunteers aged 24–30 years who were pregnant during the age of 15–19 years and have had one to two babies were recruited. All of them experienced breastfeeding without history of bone- or calcium-related problems, such as fracture or low calcium intake. BMD was determined at the femur and L1–L4 spine by dual-energy X-ray absorptiometry.
Results: We found that both volunteers who previously experienced breastfeeding and age-matched control volunteers had similar BMD at the L1–L4 spines and femora. Further analysis for site-specific changes of lumbar and femoral BMDs showed that the values of the breastfeeding group were not different from those of the control group except at L1 and L2, where BMD values were greater in breastfeeding group compared with the control group. At both femoral and vertebral sites, T- and Z-scores were apparently similar between the two groups. In addition, the BMD at peak bone mass had no significant correlation with breastfeeding duration.
Conclusions: Teenage pregnancy and breastfeeding did not negatively affect BMD later at the age of peak bone mass. Therefore, breastfeeding can be encouraged in teenage mothers.

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Information & Authors

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Published In

cover image Breastfeeding Medicine
Breastfeeding Medicine
Volume 13Issue Number 7September 2018
Pages: 500 - 505
PubMed: 30156423

History

Published online: 12 September 2018
Published in print: September 2018
Published ahead of print: 29 August 2018

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Jarinthorn Teerapornpuntakit
Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, Thailand.
Department of Physiology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand.
Pharuhas Chanprapaph
Department of Obstetrics and Gynaecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Narattaphol Charoenphandhu [email protected]
Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, Thailand.
Department of Physiology, Faculty of Science, Mahidol University, Bangkok, Thailand.
Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand.
The Academy of Science, The Royal Society of Thailand, Dusit, Bangkok, Thailand.

Notes

Address correspondence to:Narattaphol Charoenphandhu, MD, PhDDepartment of PhysiologyFaculty of ScienceMahidol UniversityRama VI RoadBangkok 10400Thailand
[email protected]

Disclosure Statement

No competing financial interests exist.

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