Prevalence and predictive factors for regional osteopenia in women with anorexia nervosa
- PMID: 11085841
- PMCID: PMC3206091
- DOI: 10.7326/0003-4819-133-10-200011210-00011
Prevalence and predictive factors for regional osteopenia in women with anorexia nervosa
Abstract
Background: Anorexia nervosa is highly prevalent among young women.
Objective: To determine prevalence and predictive factors for regional bone loss.
Design: Prospective cohort analysis.
Setting: University hospital.
Patients: 130 women with anorexia nervosa.
Measurements: Dual-energy x-ray absorptiometry.
Results: The prevalence of osteopenia (-1.0 SD >/= T-score > -2.5 SD) and osteoporosis (T-score </= -2.5 SD) was 50% and 13% for the anterior-posterior spine, 57% and 24% for the lateral spine, and 47% and 16% for the total hip, respectively. Bone mineral density (BMD) was reduced by at least 1.0 SD at one or more skeletal sites in 92% of patients and by at least 2.5 SD in 38% of patients. Weight was the most consistent predictor of BMD at all skeletal sites. Twenty-three percent of patients were current estrogen users, and 58% were previous estrogen users. Bone mineral density did not differ by history of estrogen use at any site.
Conclusions: Bone mineral density is reduced at several skeletal sites in most women with anorexia nervosa. Weight, but not estrogen use, is a significant predictor of BMD in this population at all skeletal sites.
Comment in
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Secondary osteoporosis: the potential relevance of leptin and low body weight.Ann Intern Med. 2000 Nov 21;133(10):828-30. doi: 10.7326/0003-4819-133-10-200011210-00016. Ann Intern Med. 2000. PMID: 11085846 No abstract available.
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Regional osteoporosis in anorexia nervosa.Ann Intern Med. 2001 Nov 6;135(9):843-4. doi: 10.7326/0003-4819-135-9-200111060-00025. Ann Intern Med. 2001. PMID: 11694120 No abstract available.
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