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Table 3 Operation time for thoracic surgery patients in all institutions the year before and after standardization of operating room procedures

From: Improvements in thoracic surgery outcomes: a multi-institutional collaboration study

  Before After p-value
All cases (min) before: n=373, after: n=372    
 Median (25, 75%) 146 (95, 219) 116 (80, 174) <0.0001
Lobectomy (min) before: n=74, after: n=83    
 Median (25, 75%) 228 (192, 262) 176 (145, 213) <0.0001
Partial lung resection (min) before: n=183, after: n=205    
 Median (25, 75%) 103 (76, 144) 92 (74, 116) 0.006