Change in bone turnover and hip, non-spine, and vertebral fracture in alendronate-treated women: The Fracture Intervention Trial
Change in bone turnover and hip, non-spine, and vertebral fracture in alendronate-treated women: The Fracture Intervention Trial
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DOI:
10.1359/jbmr.040512
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发表时间:
2004-08-01
影响因子:
6.2
通讯作者:
Delmas, PD
中科院分区:
文献类型:
--
作者:
Bauer, DC;Black, DM;Delmas, PD
We used data from the Fracture Intervention Trial to assess the relationship change in bone turnover after 1 year of alendronate or placebo treatment and subsequent hip, non-spine, and spine fracture risk among 6186 postmenopausal women. In the alendronate group (n = 3105), greater reductions in one or more biochemical marker were associated with a lower risk of fracture.Introduction: There are few data on the relationship between short-term change in biochemical markers of bone turnover and non-spine fracture risk among bisphosphonate-treated women, and the clinical use of such measurements is unknown.Materials and Methods: We measured biochemical markers of bone turnover (bone-specific alkaline phosphatase [bone ALP], intact N-terminal propeptide of type I collagen, and C-terminal crosslinked telopeptide of type I collagen) and BMD of the spine and hip at baseline and after I year of alendronate or placebo. During a mean follow-up of 3.6 years, 72 hip, 786 non-spine, and 336 vertebral fractures were documented.Results and Conclusions: Each 1 SD reduction in 1-year change in bone ALP was associated with fewer spine (odds ratio 0.74; CI: 0.63, 0.87), non-spine (relative hazard [RH] = 0.89; CI: 0.78 1.00; p < 0.050), and hip fractures (RH 0.61; Cl: 0.46, 0.78). Alendronate-treated women with at least a 30% reduction in bone ALP had a lower risk of non-spine (RH = 0.72; Cl: 0.55, 0.92) and hip fractures (RH = 0.26; Cl: 0.08, 0.83) relative to those with reductions