Table 2

Comparison of Median VAP Rates (b)


SICU Year 2 – SICU Year 1
SICU Year 3 – SICU Year 1
SICU Year 3 – SICU Year 2

Z
-.078 (a)
-2.197 (a)
-2.040 (a)
Asymp. Sig. (2-tailed)
.937
.028
.041

a. Based on positive ranks.

b. Wilcoxon Signed Ranks Test

c. VAP = ventilator-associated pneumonia

Papadimos et al. Patient Safety in Surgery 2008 2:3   doi:10.1186/1754-9493-2-3