Table 4.

ORs of index hospitalization mortality, by LOS quantile, in a CKD cohort with potentially preventable HACs (referenced to the CKD cohort without potentially preventable HACs)

Quantile	0%–25%	25%–50%	50%–70%	75%–100%
LOS	≤7	8 to ≤23	24 to ≤29	>29
OR (95% CI)	20.60 (16.44 to 25.80)	3.6 (3.02 to 4.29)	2.20 (1.45 to 3.34)	2.37 (1.89 to 2.97)
Absolute no. of deaths (%)	224 (25)	277 (33)	62 (41)	227 (50)

Fully adjusted for age, admission type (elective versus urgent), sex, severity of CKD, nonpreventable complications, and 16 comorbid conditions. OR, odds ratio; LOS, length of stay; HAC, hospital-acquired complication; 95% CI, 95% confidence interval.