Research Article
Incidence, Patient-Related Risk Factors, and Outcomes of Postoperative Pneumonia after Cholecystectomy: A Population-Based Cohort Study
Table 5
Mortality rates of patients after cholecystectomy with or without pneumonia.
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The log-rank test was used to examine the differences in the mortality rates of the 1 : 4 case-control match after cholecystectomy. |