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Table 3 Predictors of methotrexate knowledge, with and without adjustment for demographic and disease characteristics, limited English language proficiency, and biologic use

From: Poor knowledge of methotrexate associated with older age and limited English-language proficiency in a diverse rheumatoid arthritis cohort

  Unadjusted OR (95% confidence interval) Adjusted OR (95% confidence interval)
Predictor   Model 1 Model 2
Age older than 55 years 2.23 (1.11, 4.43) 3.29 (1.48, 7.30) 3.08 (1.40, 6.79)
Female gender 0.89 (0.34, 2.19) 0.69 (0.23, 2.07) 0.87 (0.30, 2.50)
Less than high school education 1.96 (0.90, 4.29) 3.68 (1.42, 9.55) -
Limited English language Proficiency 1.90 (0.95, 3.82) - 2.60 (1.14, 5.90)
Disease duration, per year 0.98 (0.93, 1.01) 0.97 (0.93, 1.01) 0.97 (0.93, 1.01)
HAQ 0.74 (0.49, 1.12) 0.55 (0.34, 0.90) 0.61 (0.38, 0.97)
Biologic use, yes 1.87 (0.93, 3.74) 3.28 (1.41, 7.65) 3.02 (1.31, 7.00)
  1. Results in models 1 and 2 are adjusted for all variables shown.