Table 3.

Risk of fatal hospitalization among patients surviving their index hospital admission in Washington State from 2006 (second quarter) to 2008 in a fully adjusted Cox proportional hazards model (n=676,343)

Fatal Hospitalization
Hazard Ratio99% CIPTime to Fatal Hospitalization (Months)Full Study Fatal HospitalizationWithin First Month Fatal Hospitalization
MedianIQRnPercentnPercent
Cohort
 CKD1.411.34–1.49<0.00192–18285710.35181.9
 dialysis3.042.78–3.31<0.001103–20100416.41452.4
 kidney transplant2.251.67–3.03<0.001145–27766.960.5
 reference1.0092–1922,4323.544370.7
All cohorts92–1926,3693.951060.8
  • Fully adjusted model controlling for age; sex; index hospitalization primary diagnosis, length of stay, and primary payer; 12-month count of previous hospitalizations; and Elixhauser comorbidity variables.

  • CKD cohort defined by CKD not treated with hemodialysis, peritoneal dialysis, or kidney transplant. Dialysis cohort includes hemodialysis and peritoneal dialysis. CI, confidence interval; IQR, interquartile range.