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

Table 6

Mortality rates of patients with pneumonia after LC or OC.

	With pneumonia ()				value
	LC ()		OC ()
		%		%
Mortality (1 month)	19	0.55	119	4.58	<0.0001
Mortality (2 months)	9	0.26	83	3.20	<0.0001
Mortality (3 months)	7	0.20	46	1.77	<0.0001
Mortality (≤3 months)	35	1.01	248	9.56	<0.0001

The log-rank test was used to examine the differences in mortality rates of postcholecystectomy patients with pneumonia. OC: open cholecystectomy; LC: laparoscopic cholecystectomy.