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Table 6 Risk factors associated with ESBL-positive Kp pneumonia in patients with rheumatic autoimmune diseases

From: Klebsiella pneumoniae pneumonia in patients with rheumatic autoimmune diseases: clinical characteristics, antimicrobial resistance and factors associated with extended-spectrum β-lactamase production

Variables Univariate Multivariate
Odds ratio 95% CI p value Odds ratio 95% CI p value
Dose of corticosteroids (mg) 1.024 1.005–1.042 0.011 1.033 1.008–1.059 0.008
Abnormal leukocyte counta 0.252 0.081–0.785 0.017 0.192 0.041–0.901 0.036
Blood lymphocyte count (/μL) 0.198 0.038–1.036 0.055    
CMV viremia 4.727 1.414–15.809 0.012 4.836 1.142–20.480 0.032
  1. CI confidence interval
  2. aAbnormal leukocyte count was defined as leukocyte count < 4 × 109/L or leukocyte count > 10 × 109/L.