PMC

FIGURE 2. The NSQIP Clinical Cost Profile. Applying the NSQIP outcomes assessment model to costs may more adequately adjust for preoperative risk when assessing hospital surgical cost performance.

FIGURE 1. Preoperative risk factor cost predictions versus actual transformed costs. A multivariate regression of all the preoperative risk factors predicted 33% of the variation in costs (P < 0.001). The quartic root transformation yielded the best fit of the data.