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Year : 2021  |  Volume : 10  |  Issue : 2  |  Page : 893-897

Correlation between Vitamin D deficiency and nonspecific chronic low back pain: A retrospective observational study

1 Department of Physical Medicine and Rehabilitation (PMR), AIIMS Rishikesh, Uttarakhand, India
2 Department of Anesthesia, AIIMS Rishikesh, Uttarakhand, India
3 Department of Physical Medicine & Rehabilitation (PMR), VMMC & Safdarjung Hospital, New Delhi, India

Correspondence Address:
Dr. Raj Kumar Yadav
Department of Physical Medicine & Rehabilitation (PMR), AIIMS Rishikesh, Uttarakhand
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jfmpc.jfmpc_1478_20

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Context: Chronic lower back pain (CLBP) and Vitamin D deficiency are two common conditions presenting to primary care physicians. Aims: To study the vitamin D status in North Indians presenting with nonspecific CLBP and the correlation between vitamin D levels and pain severity by the Visual Analogue Scale (VAS). Settings and Design: An observational study. Record of all CLBP patients presenting to the outpatient department in 2019, were analyzed, retrospectively. Methods and Materials: All the patients of age 18 to 65 and either sex with nonspecific CLBP were included. Patients were divided into two: Vitamin D deficient (Group 1) and normal (Group 2) with cut off Serum Vitamin D values at 30 ng/mL. Demographic data and Visual Analogue Scale scores (VAS) of both groups were recorded. Statistical Analysis Used: Correlations between Vitamin D values and VAS scores were investigated using the Spearman coefficient, and the results with P of ≤ 0.05 were contemplated significant. Results: Of total 376 patients with nonspecific CLBP, the majority were adults, females, married, vegetarians, overweight or obese, and had a mean sun exposure time of two hours. Vitamin D deficient Group 1 had 302 (80.32%) patients with significantly lower (P < 0.0001) mean vitamin D levels compared to Group 2 (74 patients i.e., 19.68%). Spearman's rho coefficient between vitamin D and VAS, showed a negative correlation (–0.554), with a P value < 0.00001. Conclusions: This study indicated a high probability of vitamin D deficiency in the nonspecific CLBP population and a negative correlation between vitamin D status and pain severity.

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