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Table 2 Incidence of acquired antimicrobial resistance over time

From: The ecological effects of selective decontamination of the digestive tract (SDD) on antimicrobial resistance: a 21-year longitudinal single-centre study

Antimicrobial agent All patients LOS > 48 h Surgical Medical
Third generation cephalosporins 0.063 (p = 0.998) 0.071 (p = 0.79) 0.14 (p = 0.71) 0.009 (p = 0.92)
Tobramycin/gentamicin 0.39 (p = 0.999) 0.09 (p = 0.76) 0.070 (p = 0.79) 0.10 (p = 0.75)
Ciprofloxacin 0.88 (p = 0.985) 0.04 (p = 0.84) 0.034 (p = 0.85) 0.30 (p = 0.58)
Polymyxin B/Colistin 0.07 (p = 0.899) 0.26 (p = 0.61) 0.54 (p = 0.46) 0.46 (p = 0.50)
  1. Data are shown as likelihood ratio chi-square test (Omnibus test) to compare the fitted model (model including year) against the intercept-only model with p value
  2. LOS length of stay in the ICU