From "Judging the Effectiveness of Clinical Pathways for Pneumonia: The Role of Risk Adjustment" Effective Clinical Practice, September/October 2000. 5:221-228.
Figure 2. Economic outcomes: total hospital charges (top) and length of hospital stay (bottom). Covariates in adjusted P values are sex, ethnicity, pneumonia-specific severity of illness, season, physician specialty, academic physician, emergency department admit, and insurance type.>