Table 4.

Factors associated with 30-day and 90-day rehospitalization or mortality on multivariable logistic regression

Variables	30-Day Rehospitalization or Mortality, OR (95% CI)	P Value	90-Day Rehospitalization or Mortality, OR (95% CI)	P Value
Participation in AKI rehabilitation clinic	0.41 (0.16 to 0.93)	0.04	0.52 (0.25 to 1.05)	0.07
Age (years)	0.98 (0.97 to 1.0)	0.05	0.98 (0.96 to 0.99)	0.006
Male versus female	1.14 (0.69 to 1.64)	0.78	1.18 (0.79 to 1.77)	0.41
Non-Hispanic White versus another race	1.65 (0.51 to 6.83)	0.43	0.86 (0.28 to 2.63)	0.78
Stage 3 versus stage 2 AKI	0.96 (0.56 to 1.56)	0.82	0.85 (0.53 to 1.37)	0.51
Charlson Comorbidity Index	1.14 (1.06 to 1.22)	0.0004	1.16 (1.08 to 1.24)	0.0001
Length of stay (d)	0.99 (0.97 to 1.01)	0.44	0.997 (0.98 to 1.02)	0.72
Dialysis received during admission	1.02 (0.34 to 2.15)	0.76	0.53 (0.22 to 1.27)	0.16
Discharge eGFR (ml/min per 1.73 m2)	0.999 (0.99 to 1.01)	0.55	0.996 (0.99 to 1.00)	0.33
ICU admission	1.07 (0.68 to 1.80)	0.68	0.90 (0.57 to 1.41)	0.63
CHF in discharge diagnoses	0.74 (0.45 to 1.20)	0.20	0.81 (0.5 to 1.30)	0.39
Admissions within 1-year before index	0.42 (0.06 to 2.26)	0.29	0.12 (0.01 to 0.88)	0.08
Discharge disposition
Rehabilitation versus home	0.76 (0.28 to 1.89)	0.58	1.16 (0.51 to 2.55)	0.72
SNF versus home	1.89 (1.12 to 3.21)	0.02	1.82 (1.10 to 3.02)	0.02
LTACH versus home	3.4 (1.45 to 8.04)	0.005	4.1 (1.75 to 10.19)	0.64

OR, odds ratio; ICU, intensive care unit; CHF, congestive heart failure; SNF, skilled nursing facility; LTACH, long-term acute care hospital.