Incidence, Patient-Related Risk Factors, and Outcomes of Postoperative Pneumonia after Cholecystectomy: A Population-Based Cohort Study

Table 4

Outcome characteristics of patients after cholecystectomy with or without pneumonia.

	Without pneumonia ()	With pneumonia ()	value
	Hospital stay (days)	10.71 (11.82)		18.55 (15.30)	<0.0001
ICU admission rate	3639 (15.02%)	2532 (41.80%)	<0.0001

Continuous variables were described as the (SD) and the categorical variable as number of event (). ICU: intensive care unit; SD: standard deviation.