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Table 2 Logistic Regression model for 25OHD deficiency (n = 3,173)

From: Disease-specific definitions of vitamin D deficiency need to be established in autoimmune and non-autoimmune chronic diseases: a retrospective comparison of three chronic diseases

  OR (95% CI) P-value
SLE 1.0  
RA 1.1 (0.62, 2.1) 0.691
T2DM 2.0 (1.3, 3.1) 0.003
Age (for every decade) 0.83 (0.78, 0.88) <0.001
Male gender 0.95 (0.79, 1.1) 0.58
Race/Ethnicity   
   African-American 1.0  
   Hispanic 0.75 (0.63, 0.90) 0.002
   Other 0.70 (0.58, 0.84) <0.001
October to March season 1.3 (1.1, 1.5) 0.002
Serum calcium, mg/dl 0.70 (0.63, 0.78) <0.001
Vitamin D supplementation 0.81 (0.68, 0.96) 0.015
Bisphosphonate therapy 0.59 (0.47, 0.76) <0.001
Serum creatinine >1.5 mg/dl 1.4 (1.1, 1.7) 0.001
  1. SLE, systemic lupus erythematosus; RA, rheumatoid arthritis; T2DM, type 2 diabetes mellitus; 25OHD, 25hydroxyvitamin D; OR, odds ratio; CI, confidence interval.