Risk for Fracture in Women with Low Serum Levels of Thyroid-Stimulating Hormone

作者：Douglas C. Bauer, Bruce B. Ettinger, Michael C. Nevitt, Katie L. Stone · 发表于：Annals of Internal Medicine · 年份：2001 · DOI：10.7326/0003-4819-134-7-200104030-00009 · 被引用次数：472 · 研究领域：Thyroid Disorders and Treatments、Bone health and osteoporosis research、Dental Radiography and Imaging

BACKGROUND: Biochemical evidence of hyperthyroidism may be associated with low bone mass, particularly in older postmenopausal women, but no prospective studies of thyroid function and subsequent fracture risk have been done. OBJECTIVE: To examine the association between low levels of thyroid-stimulating hormone (TSH) and fracture in older women. DESIGN: Prospective cohort study with case-cohort sampling. SETTING: Four clinical centers in the United States. PATIENTS: 686 women older than 65 years of age from a cohort of 9704 women recruited from population-based listings between 1986 and 1988. MEASUREMENTS: Baseline assessment of calcaneal bone mass, spine radiography, and history of thyroid disease. Spine radiography was repeated after a mean follow-up of 3.7 years; nonspine fractures were centrally adjudicated. Thyroid-stimulating hormone was measured in sera obtained at baseline from 148 women with new hip fractures, 149 women with new vertebral fractures, and a subsample of 398 women randomly selected from the cohort. RESULTS: After adjustment for age, history of previous hyperthyroidism, self-rated health, and use of estrogen and thyroid hormone, women with a low TSH level (0.1 mU/L) had a threefold increased risk for hip fracture (relative hazard, 3.6 [95% CI, 1.0 to 12.9]) and a fourfold increased risk for vertebral fracture (odds ratio, 4.5 [CI, 1.3 to 15.6]) compared with women who had normal TSH levels (0.5 to 5.5 mU/L). After adjustment for TSH level, a history of ...