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. 2016 Jan 27;11(1):e0147762.
doi: 10.1371/journal.pone.0147762. eCollection 2016.

The Benefit of Bone Health by Drinking Coffee among Korean Postmenopausal Women: A Cross-Sectional Analysis of the Fourth & Fifth Korea National Health and Nutrition Examination Surveys

Eunjoo Choi  1 , Kyung-Hyun Choi  2 , Sang Min Park  1   3 , Doosup Shin  4 , Hee-Kyung Joh  5   6 , Eunyoung Cho  7   8
Affiliations

The Benefit of Bone Health by Drinking Coffee among Korean Postmenopausal Women: A Cross-Sectional Analysis of the Fourth & Fifth Korea National Health and Nutrition Examination Surveys

Eunjoo Choi et al. PLoS One. .

Abstract

Purpose: Although the concern about coffee-associated health problems is increasing, the effect of coffee on osteoporosis is still conflicting. This study aimed to determine the relationship between coffee consumption and bone health in Korean postmenopausal women.

Methods: A population-based, cross-sectional study was performed using a nationally representative sample of the Korean general population. All 4,066 postmenopausal women (mean age 62.6 years) from the fourth and fifth Korean National Health and Nutrition Examination Survey (2008-2011), who completed the questionnaire about coffee consumption and had data of dual-energy X-ray absorptiometry (DXA) examination. Bone mineral density (BMD) was measured using DXA at the femoral neck and lumbar spine and osteoporosis was defined by World Health Organization T-score criteria in addition to self-report of current anti-osteoporotic medication use.

Results: After adjusting for various demographic and lifestyle confounders (including hormonal factors), subjects in the highest quartile of coffee intake had 36% lower odds for osteoporosis compared to those in the lowest quartile (Adjusted odds ratio [aOR] = 0.64; 95% confidence interval [CI], 0.43-0.95; P for trend = 0.015). This trend was consistent in osteoporosis of lumbar spine and femoral neck (aOR = 0.65 and 0.55; P for trend = 0.026 and 0.003, respectively). In addition, age- and body mass index (BMI)-adjusted BMD of the femoral neck and lumbar spine increased with higher coffee intake (P for trend = 0.019 and 0.051, respectively).

Conclusions: Coffee consumption may have protective benefits on bone health in Korean postmenopausal women in moderate amount. Further, prospective studies are required to confirm this association.

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Conflict of interest statement

Competing Interests: The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. The study population framework.
a 2008–2011 The Fourth and Fifth Korean National Health and Nutritional Examination Survey.
Fig 2
Fig 2. Least-squares means of the bone mineral density, adjusted for age and BMI, according to coffee consumption.
Abbreviations: BMD, bone mineral density; BMI, body mass index. Least-squares mean of whole body, femur neck, lumbar spine of BMD stratified by coffee consumption. Multiple linear regression model adjusted for age, BMI was used for a linear trend in BMD.
See this image and copyright information in PMC

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