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Table 1. Demographic and Clinical Data of Patients Entering the Study

Results are expressed as mean (95% confidence interval).

*t  test and chi-square test (or z  test), respectively for quantitative and categorical variables.

VAP = ventilator-associated pneumonia; SAPS II = simplified acute physiology score; COPD = chronic obstructive pulmonary disease; ICU = intensive care unit.

Table 1. Demographic and Clinical Data of Patients Entering the Study
Table 1. Demographic and Clinical Data of Patients Entering the Study
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