Fig. 2. Distribution of surgical cases by surgical duration. The average duration is the national average and is determined by the primary surgical Current Procedural Terminology code for the case at each hospital. For both hospital A and hospital B, more than 50% of the cases had surgical durations of 2 h or more, whereas for the same Current Procedural Terminology codes, less than 25% of the cases had average durations exceeding 2 h. Similarly, at hospital A, 32% of the cases exceeded 3 h, and at hospital B, 24% of the cases exceeded 3 h, whereas national averages for the same surgical procedures were 8% and 6%, respectively.