Figure 2.
Mean length of stay (LOS) and adjusted absolute and relative LOS differences for PS-AKI versus NPS-AKI for patients with and without ICU stay during index hospitalization. *P<0.001 for all comparisons versus NPS-AKI (reference). Covariates for adjusted model are age, sex, race-ethnicity, Charlson Comorbidity Index, hospital characteristics (number of beds, teaching status, region, urban/rural) and admission point of origin, admission type, medical versus surgical patient (categorized by MS_DRG), primary payer and CKD, sepsis, and ICU use.