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Table 3 Spearman’s rank correlation coefficient of the association between serum vitamin D and joint symptoms

From: Vitamin D and its association with symptom severity in knee osteoarthritis: a cross sectional study at a national referral hospital in Uganda

WOMAC score

rs

95% CI

p Value

Pain

0.18

 − 0.01, 0.36

0.0575

Stiffness

0.13

 − 0.06, 0.31

0.1745

Physical function

0.09

 − 0.10, 0.28

0.3609

Total joint, stiffness, physical function (total WOMAC)

0.13

 − 0.06, 0.31

0.1893

  1. WOMAC Western Ontario and McMaster Universities