1. Hospital-Acquired Acute Kidney Injury and Hospital Readmission: A Cohort Study 
Ioannis Koulouridis, MD, MS, Lori Lyn Price, MAS, Nicolaos E. Madias, MD, Bertrand L. Jaber, MD, MS 
American Journal of Kidney Diseases 
Volume 65, Issue 2, Pages (February 2015)
DOI: /j.ajkd
Copyright © 2015 National Kidney Foundation, Inc. Terms and Conditions

2. Figure 1
The 30-, 60-, and 90-day hospital readmission rates among patients with and without acute kidney injury (AKI) during the index hospitalization in the (A) primary (unmatched) cohort and (B) secondary (propensity score–matched) cohort. ∗P<0.001; ∗∗P=0.05 versus no AKI.
American Journal of Kidney Diseases  , DOI: ( /j.ajkd )
Copyright © 2015 National Kidney Foundation, Inc. Terms and Conditions

3. Figure 2
The 30-day hospital readmission rate among patients with and without acute kidney injury (AKI) according to the primary diagnosis of the index hospitalization. The analysis pertains to the primary (unmatched) cohort. ∗P=0.03; ∗∗P=0.003; †P=0.004; ‡P=0.02 versus no AKI. Abbreviation: COPD, chronic obstructive pulmonary disease.
American Journal of Kidney Diseases  , DOI: ( /j.ajkd )
Copyright © 2015 National Kidney Foundation, Inc. Terms and Conditions

4. Figure 3
Distribution of 30-day rehospitalization primary diagnoses among patients with and without acute kidney injury (AKI) during the index hospitalization. The analysis pertains to the primary (unmatched) cohort. ∗P<0.001; ∗∗P=0.01 versus no AKI. Abbreviation: COPD, chronic obstructive pulmonary disease.
American Journal of Kidney Diseases  , DOI: ( /j.ajkd )
Copyright © 2015 National Kidney Foundation, Inc. Terms and Conditions

5. Figure 4
Kaplan-Meier survival plot for time to hospital readmission among patients with (solid line) and without (dashed line) acute kidney injury (AKI) during the index hospitalization. The analysis pertains to the primary (unmatched) cohort and is censored at 90 days from time of hospital discharge. P<0.001 by log-rank test.
American Journal of Kidney Diseases  , DOI: ( /j.ajkd )
Copyright © 2015 National Kidney Foundation, Inc. Terms and Conditions

6. Figure 5
Adjusted relationships between hospital-acquired acute kidney injury and 30-day hospital readmission in selected subgroups. The analysis pertains to the primary (unmatched) cohort. Abbreviations: CI, confidence interval; eGFR, estimated glomerular filtration rate.
American Journal of Kidney Diseases  , DOI: ( /j.ajkd )
Copyright © 2015 National Kidney Foundation, Inc. Terms and Conditions