From: Incidence, risk factors and mortality of nosocomial pneumonia in Intensive Care Units: A prospective study
NP group n (%)
Control group n (%)
X2
p
Mortality
106 (65.0)
43 (26.4)
47.5
<0.0001
Improve
57 (35.0)
120 (73.6)
Attributable mortality
52.6%