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

Published in final edited form as: J Am Coll Cardiol. 2015 Jan 6;65(1):15–23. doi: 10.1016/j.jacc.2014.09.079

Table 4.

Readmission Cost

READMISSION COST
Reason of readmission	Mean Cost* of readmission (95%CI)	Mean Cost due to HAI	Mean LOS of readmission (95%CI)	Mean LOS due to HAI
Infection	$33,512 (20903, 46121) (n = 52)	$33,512^†	11.5 days (8.7, 14.4) (n = 74)	11.5 days
Other	$12,742 (10488, 14996) (n = 493)	$1,285^‡	6 days (5.6, 6.6) (n = 760)	0.6 days

N is different between cost and LOS because cost data were available only for readmissions within network.

^†

The entire cost of these readmissions is considered fully attributable to HAI.

^‡

Patients who had an HAI during their index hospitalization have an increased risk of all-cause readmissions. The corresponding cost was calculated by: mean cost of readmissions not due to infection × number of extra readmissions due to HAI at index/number of HAI at index=12742 × 0.1 =$1,285

CI=confidence interval; HAI=health care-associated infection; LOS=length of stay