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Association Between Parity and Low Bone Density Among Postmenopausal Korean Women

Authors
 Eunsun Seo  ;  Yongrong Lee  ;  Hyeon Chang Kim 
Citation
 Journal of Preventive Medicine and Public Health, Vol.54(4) : 284-292, 2021-07 
Journal Title
Journal of Preventive Medicine and Public Health
ISSN
 1975-8375 
Issue Date
2021-07
MeSH
Bone Density ; Cohort Studies ; Female ; Humans ; Middle Aged ; Osteoporosis, Postmenopausal* / epidemiology ; Parity ; Postmenopause* ; Pregnancy ; Republic of Korea / epidemiology ; Risk Factors
Keywords
Bone density ; Osteopenia ; Osteoporosis ; Parity
Abstract
Objectives: Low bone density (LBD) in the postmenopausal period has long been a pervasive public health concern; however, the association between parity and LBD has yet to be fully elucidated. Thus, we investigated the association between parity and LBD in postmenopausal Korean women.

Methods: This study used baseline data from 1287 Korean postmenopausal women aged 40 years or older enrolled in the Cardiovascular and Metabolic Diseases Etiology Research Center community-based cohort study conducted in Korea from 2013 to 2017. The main exposure was parity (nullipara, 1, 2, 3+). The main outcome was LBD, including osteopenia and osteoporosis, based on bone mineral density measured using quantitative computed tomography of the lumbar spine (L1-2).

Results: The mean age of participants was 57.1 years, and the median parity was 2. Of the 1287 participants, 594 (46.2%) had osteopenia and 147 (11.4%) had osteoporosis. No significant difference in the prevalence of LBD was found between nullipara and parous women, whereas higher parity was associated with a higher risk of LBD among parous women; the adjusted odds ratio (95% confidence interval) for the presence of LBD was 1.40 (0.97 to 2.02) for a parity of 2 and 1.95 (1.23 to 3.09) for a parity of 3 relative to a parity of 1.

Conclusions: Women who have given birth multiple times may be at greater risk of bone loss after menopause; therefore, they should be a major target population for osteoporosis prevention.
Files in This Item:
T202126084.pdf Download
DOI
10.3961/jpmph.21.162
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Preventive Medicine (예방의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hyeon Chang(김현창) ORCID logo https://orcid.org/0000-0001-7867-1240
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/190456
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