FIGURE 1.

Both overtriage and undertriage were associated with low value of care relative to risk-matched controls. Each point represents a single admission. Black lines represent medians. P values compare nonparametric distributions between cohorts. To calculate value of care for each admission, inverted O:E mortality ratios for cohorts were divided by total cost for each admission and multiplied by a constant to set value of care for overtriage versus controls and undertriage versus controls to 1. Both hospital mortality and discharge to inpatient or outpatient hospice were considered observed mortalities. ICU indicates intensive care unit; O:E mortality, observed-to-expected hospital mortality ratios.