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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