. Author manuscript; available in PMC: 2016 May 6.

Published in final edited form as: Ann Appl Stat. 2016 Mar;10(1):286–304. doi: 10.1214/15-AOAS891

Table 5.

Estimated ΔAUC and IDI for 30-day all-cause readmission among Pennsylvania residents discharged from UPHS with a primary diagnosis of heart failure, 2005–2012

	Readmitted			Readmitted to UPHS
	Estimate^a	95% CI	P	Estimate^a	95% CI	P
ΔAUC	0.088	0.065, 0.111	<0.001	0.066	0.042, 0.091	<0.001
IDI	0.059	0.044, 0.074	<0.001	0.039	0.025, 0.053	<0.001

CI, confidence interval.

Estimates quantify the improvement in prediction accuracy associated with adding the number of admissions in the previous year to a model that included sociodemographic characteristics and comorbid conditions diagnosed at discharge.