Table 4.

Outcomes of study patients based on the presence of ventilator-associated lower respiratory tract infections

	VAP, n = 215	VAT, n = 99	No VA-LRTI, n = 745	p
ICU mortality	82 (38.1)	20 (20.2)	313 (42)	< 0.001*¤
Duration of mechanical ventilation, days	18 (11–31)	18 (11–24)	8 (6–13)	< 0.001#*
Mechanical ventilation-free days	1 (0–13)	8 (0–15)	11 (0–20)	< 0.001#*¤
Length of ICU stay, days	26 (15–42)	25 (17–37)	12 (8–18)	< 0.001#*
Length of hospital stay, days	31 (18–60)	36 (24–56.3)	17 (10–30)	< 0.001#*

Data are numbers (%), or median (interquartile range)

d, days; VAP, ventilator-associated pneumonia; VAT, ventilator-associated tracheobronchitis

* Significant difference between VAT and no VA-LRTI groups

^#Significant difference between VAP and no VA-LRTI groups

^¤Significant difference between VAP and VAT groups