期刊
MATURITAS
卷 45, 期 3, 页码 159-167出版社
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/S0378-5122(03)00150-6
关键词
BMD change; natural menopause; osteoporosis; prospective study; risk factors
Objectives: The present study evaluated the effects of menopause and other putative bone loss modifying factors on bone mineral density (BMD) change. Methods: The study population, 396 healthy women aged 48-59 years with no history of hormone replacement therapy (HRT) use or any bone affecting disease or medications, was selected from a random sample (n = 2025) of the OSTPRE-study cohort (n = 13 100) in Kuopio, Finland. BMD at lumbar spine (LS) and three areas of proximal femur (femoral neck (FN), Ward's triangle (W), trochanter (T)) was measured with dual Xray absorptiometry at baseline in 1989-1991 and at 5 years in 1994-1997. Results: 116 women who reported the beginning of menopause during the follow-up (perimenopausal) had the greatest mean annual bone loss (-1.22%/year (LS), -0.87% year (FN), -1.14%/year (W), -0.36%/year (T)). In women under 5 years postmenopausal at baseline (early postmenopausal, n = 172) bone loss rate was significantly lower than in perimenopausal women. In women over 5 years postmenopausal at baseline (late postmenopausal, n = 108) bone loss rate was significantly further decreased only at lumbar spine. In peri- and postmenopausal women the annual BMD change was best described as a trinomial function of the duration of menopause at all sites (P < 0.03). Of the life-style factors studied protective effects were found in weight increase in both spinal and femoral bone (P = 0.010/P < 0.001), high baseline weight in spine (P < 0.001) and high grip strength in femoral neck (P = 0.002). Conclusion: The beginning of menopause is accompanied by significant bone loss, which decreases in later menopause. Few other physiological and life-style factors were found to significantly contribute to this phenomenon. (C) 2003 Elsevier Science Ireland Ltd. All rights reserved.
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