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Ann Rheum Dis. 2009 Jun;68(6):817-22. doi: 10.1136/ard.2008.090456. Epub 2008 Aug 12.

Vitamin D and chronic widespread pain in a white middle-aged British population: evidence from a cross-sectional population survey.

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1
MRC Centre of Epidemiology for Child Health, UCL Institute of Child Health, London, UK.

Abstract

BACKGROUND:

Identified aetiological factors for chronic widespread pain (CWP) are largely related to emotional and behavioural factors, but current management leads to modest improvement in symptoms. Vitamin D deficiency has been suggested as a new modifiable risk factor for CWP.

OBJECTIVE:

To examine the association between vitamin D status (measured by 25-hydroxyvitamin D (25(OH)D)) and CWP in a nationwide population sample of white British adults, accounting for potential mediating and confounding lifestyle factors.

METHODS:

9377 participants born 1 week in March 1958, in England, Scotland or Wales and completing a biomedical assessment at age 45; 6824 eligible participants had data on 25(OH)D and completed pain manikins.

RESULTS:

Prevalence of CWP varied by 25(OH)D concentration in women but not in men, with the lowest prevalence observed for women with 75-99 nmol/l (14.4% for <25 nmol/l, 14.8% for 25-49 nmol/l, 11.6% for 50-74 nmo/l, 8.2% for 75-99 nmol/l and 9.8% for participants with > or =100 nmol/l). There was an interaction between 25(OH)D concentration and gender in relation to CWP (interaction, p = 0.006), which was not fully explained by differences in lifestyle or social factors (adjusted interaction, p = 0.03). For women, the association between 25(OH)D concentration and CWP persisted after full adjustment (odds ratio (OR) for <75 nmol/l vs 75-99 nmol/l 1.57, 95% CI 1.09 to 2.26), while no evidence for an association was apparent in men (OR = 1.03, 95% CI 0.75 to 1.43).

CONCLUSION:

Current vitamin D status was associated with CWP in women but not in men. Follow-up studies are needed to evaluate whether higher vitamin D intake might have beneficial effects on the risk of CWP.

PMID:
18697776
DOI:
10.1136/ard.2008.090456
[Indexed for MEDLINE]
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