Characteristics of Long-Term Femoral Neck Bone Loss in Postmenopausal Women: A 25-Year Follow-Up

Abstract

The aim of this study was to monitor long‐term changes in bone mineral density (BMD) after menopause and factors affecting BMD. The study population consisted of a random sample of 3222 women from the Kuopio Osteoporosis Risk Factor and Prevention (OSTPRE) study, of which 62.1% were postmenopausal at the beginning of the study. This group of women underwent dual‐energy X‐ray absorptiometry (DXA) measurements at the femoral neck every 5 years from baseline (in 1989) up to 25‐year follow‐up. They also responded to risk‐factor questionnaires at 5‐year intervals. During the 25‐year follow‐up, the baseline cohort decreased to 686 women. The women were divided into quartiles based on their baseline BMD. Self‐reported hormone replacement therapy (HRT) and corticosteroid use were divided into ever users and never users. Morbidity was assessed as the total number of self‐reported diseases and BMD‐affecting diseases. The mean 25‐year BMD change was found to be −10.1%, p < 0.001. Higher baseline BMD was associated with higher bone loss rate; the reduction in the highest quartile BMD was 11.1% and in the lowest quartile 7.4% (p = 0.0031). Lower baseline body mass index (BMI) and a greater increase in BMI were found to protect against postmenopausal bone loss (p < 0.001). The lowest bone loss quartile included 15.2% more HRT users than the highest bone loss quartile (p = 0.004). The number of diseases/bone‐affecting diseases, use of vitamin D/calcium supplementation, use of corticosteroids, smoking or alcohol use had no statistical significance for annual bone loss rate. This study presents hitherto the longest (25‐year) BMD follow‐up in postmenopausal women. The linear femoral neck bone loss of 10% was less than previously assumed. A 5‐year BMD change appeared to predict long‐term bone loss in postmenopausal women. © 2021 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).

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Effect of Ospemifene on Densitometric and Plasma Bone Metabolism Biomarkers in Postmenopausal Women Reporting Vulvar and Vaginal Atrophy (VVA)

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Relationship between diet-related inflammation and bone health under different levels of body mass index

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