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Table 3 Impact of smoking on positive immune response forpneumococcal serotypes(23F and 6B) in RA patients on methotrexate

From: The effect of smoking and alcohol consumption on markers of systemic inflammation, immunoglobulin levels and immune response following pneumococcal vaccination in patients with arthritis

  B P-value Exp(B) 95% CI
     Lower Upper
Smoking (pack-years) -0.07 0.046 0.93 0.86 0.99
Age (years) -0.01 0.724 0.99 0.95 1.03
Gender 0.85 0.341 2.34 0.41 13.43
CRP -0.03 0.639 0.98 0.88 1.08
SJC28* -0.09 0.502 0.91 0.69 1.20
TJC28* 0.00 1.000 1.0 0.76 1.32
Pre-vaccination antibody levels for serotype 23F -0.42 0.090 0.66 0.41 1.07
Smoking (ever) -1.58 0.025 0.21 0.05 0.81
  1. *swollen and tender joint count in 28-joint count index
  2. Two different logistic regression models were created analyzing smoking (pack-years) and smoking (ever) variable, respectively adjusted for the same covariates.