To assess the existence of a possible trend regarding annual incidence of suspected VAP episodes, duration of antibiotic therapy per suspected episode and antibiotic days for suspected episodes, the nonparametric test for trend proposed by Cuzick was used (Wilcoxon-type test for trend) as the approximation works for small sample sizes ( 26 ).
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Neonatal Ventilator Associated Pneumonia: A Quality Improvement Initiative Focusing on Antimicrobial Stewardship.
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