Table 5: Multivariate analysis between vitamin D levels and characteristics of RA patients.

IC

Age (years) 0.140.10; 0.23]<0.001
BMI (kg/m2) −0.07−0.35; −0.06] 0.004
High educational level 0.122.39; 5.85]<0.001
DAS28 −0.05−1.21; −0.05]0.03
Glucocorticoid intake (mg/day) −0.08−0.30; −0.06] 0.003
Osteoporotic therapy intake −0.07−4.53; −0.65]0.009
Lung diseases −0.01−4.82; −2.74] 0.58

significant 0.05.