全球精选文摘 - 抗骨质疏松症药物预防非锥体骨折的相对有效性

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抗骨质疏松症药物预防非锥体骨折的相对有效性

Relative Effectiveness of Osteoporosis Drugs for Preventing Nonvertebral Fracture

Cadarette SM, Katz JN, Brookhart MA 2009/7/24 12:13:21

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Ann Intern Med, 2009,

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Background:

Little information is available on the comparative effectiveness of osteoporosis pharmacotherapies.

Objective:

To compare the relative effectiveness of osteoporosis treatments to reduce nonvertebral fracture risk among older adults.

Design:

Cohort study

Setting:

Enrollees in 2 statewide pharmaceutical benefit programs for persons age 65 years or older.

Patients:

43 135 new recipients of oral bisphosphonates, nasal calcitonin, and raloxifene who began treatment from 2000 to 2005. The mean age was 79 years (SD, 6.9), and 96% were women.

Measurements:

The primary outcome was nonvertebral fracture (hip, humerus, or radius or ulna) within 12 months of treatment initiation. Cox proportional hazard models stratified by state and adjusted for risk factors for fracture were used to compare fracture rates. Alendronate was the reference category in all analyses.

Results:

A total of 1051 nonvertebral fractures were observed within 12 months (2.62 fractures per 100 person-years). No large differences in fracture risk were found between risedronate (hazard ratio [HR], 1.01 [95% CI, 0.85 to 1.21]) or raloxifene (HR, 1.18 [CI, 0.96 to 1.46]) and alendronate. However, among those with a fracture history, raloxifene recipients experienced more nonvertebral fractures within 12 months (HR, 1.78 [CI, 1.20 to 2.63]) compared with alendronate recipients. Patients who received calcitonin experienced more nonvertebral fractures than those who received alendronate (HR, 1.40, [CI, 1.20 to 1.63]). Results were similar in sensitivity analyses that examined different lengths of follow-up (6 months and 24 months), were restricted to hip fracture as the outcome, and were completed in various subgroups.

Limitation:

Confounder adjustment was limited to health care utilization data, and the confidence bounds of some comparisons were too wide to rule out potential clinically important differences between agents.

Conclusion:

Differences in fracture risk between risedronate or raloxifene and alendronate were small. Nasal calcitonin recipients may have a higher risk for nonvertebral fractures compared with alendronate recipients. Future studies that can better adjust for possible confounding may further clarify these relationships.

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疾病资源中心

高血压	慢性阻塞性肺病
脂肪性肝病	糖尿病
卒中	肺癌
冠心病	子宫内膜异位症
结直肠癌	乳腺癌
心力衰竭	心律失常

病例分析 [栏目介绍]

甲状腺功能亢进合并黄疸

王燕燕王曙

上海交通大学附属瑞金医院内分泌科

患者，女，69岁。2009年1月无明显诱因下出现乏力，当时程度较轻，未予以重视。2009年3月患者乏力症状加重，尿色逐渐加深，大便习惯改变，颜色变淡。4月18日入我院感染科治疗，诉轻度头晕、心慌，体重减轻10kg。无肝区疼痛，无发热，无腹痛、腹泻、腹胀、里急后重，无恶性、呕吐等。入院半月前于外院就诊，查肝功能：ALT 601IU/L，AST 785IU/L，TBIL 97.7umol/L，白蛋白 41g/L，甲状腺功能：游离T3 30.6pmol/L，游离T4 51.9pmol/L，心电图示快速房颤。

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