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Fibromyalgia development 1.9 X more likely if low vitamin D – Jan 2016

Low vitamin D and the risk of developing chronic widespread pain: results from the European male ageing study.

BMC Musculoskelet Disord. 2016 Jan 16;17(1):32.
McCabe PS1, Pye SR2, Beth JM3,4, Lee DM5, Tajar A6, Bartfai G7, Boonen S8, Bouillon R9, Casanueva F10, Finn JD11, Forti G12, Giwercman A13, Huhtaniemi IT14, Kula K15, Pendleton N16, Punab M17, Vanderschueren D18, Wu FC19, O'Neill TW20,21; EMAS Study Group.

VitaminDWiki Summary

Vitamin D levels of 3300 senior adult men measured 4 years apart
Those who developed fibromyalgia were 1.93 more likely to have low vitamin D
( < 16 ng/mL vs > 36 ng/mL)
See also VitaminDWiki


BACKGROUND:
The association between low levels of vitamin D and the occurrence of chronic widespread pain (CWP) remains unclear. The aim of our analysis was to determine the relationship between low vitamin D levels and the risk of developing CWP in a population sample of middle age and elderly men.
METHODS:
Three thousand three hundred sixty nine men aged 40-79 were recruited from 8 European centres for a longitudinal study of male ageing, the European Male Ageing Study. At baseline participants underwent assessment of lifestyle, health factors, physical characteristics and gave a fasting blood sample. The occurrence of pain was assessed at baseline and follow up (a mean of 4.3 years later) by shading painful sites on a body manikin. The presence of CWP was determined using the ACR criteria for fibromyalgia. Serum 25-hydroxyvitamin D (25-(OH) D) was assessed by radioimmunoassay. Logistic regression was used to determine the relationship between baseline vitamin D levels and the new occurrence of CWP.
RESULTS:
Two thousand three hundred thirteen men, mean age 58.8 years (SD = 10.6), had complete pain and vitamin data available and contributed to this analysis. 151 (6.5 %) developed new CWP at follow up and 577 (24.9 %) were pain free at both time points, the comparator group. After adjustment for age and centre, physical performance and number of comorbidities, compared to those in upper quintile of 25-(OH) D ( ≥36.3 ng/mL), those in the lowest quintile (<15.6 ng/mL) were more likely to develop CWP (Odds Ratio OR = 1.93; 95 % CI = 1.0-3.6). Further adjustment for BMI (OR = 1.67; 95 % CI = 0.93-3.02) or depression (OR = 1.77; 95 % CI = 0.98-3.21), however rendered the association non-significant.
CONCLUSIONS:
Low vitamin D is linked with the new occurrence of CWP, although this may be explained by underlying adverse health factors, particularly obesity and depression.
PMID: 26774507

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