Table 2.

Descriptive statistics of variables.

Descriptive statistics of variables
	Males (%)	Females (%)	Sample size of the study (n)	Overall age distribution in years (mean)	Length of stay in the intensive care unit in days (mean)	Incidence of ventilator-associated pneumonia (%)	Intensive care unit mortality (%)
Mean	64.88	35.12	13470.77	53.55	8.62	20.05	22.24
Median	66.35	33.65	532.00	57.50	8.50	17.29	20.30
Percentiles
25	54.71	28.40	78.50	50.70		8.65	16.22
50	66.35	33.65	532.00	57.50		17.29	20.30
75	71.60	45.29	6547.00	62.05		25.21	29.23