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Osteoporos Int. 2010 Oct;21(10):1627-35. doi: 10.1007/s00198-010-1181-x. Epub 2010 Mar 4.

Depression, fracture risk, and bone loss: a meta-analysis of cohort studies.

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  • 1College of Medicine, Mayo Clinic, 13400 East Shea Boulevard, Scottsdale, AZ 85259, USA. wu.qing@mayo.edu

Abstract

Whether depression can increase the risk of bone fractures is uncertain. This meta-analysis, which pooled results from 14 qualifying individual cohort studies, found that depression was associated with a significantly increased risk of fractures and bone loss.

INTRODUCTION:

The effect of depression on the risk of bone fractures is controversial. We conducted a meta-analysis of prospective studies that examined the risk of osteoporotic fractures and bone loss associated with depression.

METHODS:

We searched databases and reviewed citations in relevant articles to identify cohort studies that met prestated inclusion criteria; 14 studies were identified. Information on study design, participant characteristics, exposure and outcome measures, control for potential confounders, and risk estimates was abstracted independently by two investigators using a standardized protocol. Data were pooled by use of a random-effects model.

RESULTS:

In studies that reported fracture outcomes as hazard ratios (HRs) (six studies [n = 108,157]), depression was associated with a 17% increase in fracture risk (HR = 1.17; 95% confidence interval [CI], 1.00-1.36; P = 0.05); in studies that reported risk ratios as fracture outcomes (four studies [n = 33,428]), depression was associated with a 52% increase in risk (risk ratio, 1.52; 95% CI, 1.26-1.85; P < 0.001). In studies that reported bone mineral density as an outcome (five studies [n = 8,931]), depression was associated with a reduced annualized bone loss rate of 0.25% (0.05-0.45%; P = 0.02) at the hip and 0.29% (-0.07-0.64%; P = 0.11) at the spine. The HR for the three studies (n = 14,777) that did not adjust for antidepressant treatment was 1.30 (95% CI, 1.11-1.52; P = 0.01), and the HR for the three studies (n = 93,380) that did adjust for antidepressant treatment was 1.05 (95% CI, 0.86-1.29; P = 0.6).

CONCLUSION:

Evidence supports an association between depression and increased risk of fracture and bone loss that may be mediated by antidepressants.

PMID:
20204602
[PubMed - indexed for MEDLINE]
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