Table 3.

Multivariable Cox proportional hazard model for factors associated with rehospitalization following living-donor nephrectomy

Parameter (Reference Group)Adjusted Hazard Ratio for All-Cause Rehospitalizations following Initial Discharge (95% CI)Adjusted Hazard Ratio for Non–Pregnancy-Related Rehospitalizations following Initial Discharge (95% CI)
Age at living donation (per year)0.99 (0.99 to 1.00)1.02 (1.01 to 1.03)
State of residence (California)
 New York0.54 (0.42 to 0.71)0.56 (0.42 to 0.75)
 Florida0.71 (0.49 to 1.02)0.74 (0.50 to 1.09)
 North Carolina0.80 (0.43 to 1.50)0.97 (0.52 to 1.81)
Race/ethnicity (white)
 African American1.77 (1.32 to 2.38)2.16 (1.56 to 3.01)
 Hispanic1.28 (1.02 to 1.61)1.29 (0.97 to 1.70)
 Other/missing0.22 (0.14 to 0.34)0.29 (0.18 to 0.49)
Sex (male)
 Female1.72 (1.35 to 2.20)1.17 (0.91 to 1.50)
 Missing4.79 (3.25 to 7.04)2.59 (1.58 to 4.27)
Primary payer (Medicare)
 Private1.22 (0.95 to 1.57)1.19 (0.89 to 1.59)
 Medicaid1.51 (0.88 to 2.58)1.43 (0.73 to 2.80)
 Other/missing1.48 (1.14 to 1.93)1.48 (1.09 to 2.00)
Hypertension (no)
 Yes1.59 (0.92 to 2.75)1.26 (0.71 to 2.24)
Obesity (no)
 Yes1.09 (0.62 to 1.92)1.11 (0.57 to 2.16)
Hypothyroidism (no)
 Yes1.43 (0.94 to 2.17)1.63 (1.06 to 2.49)
Depression (no)
 Yes1.79 (1.08 to 2.97)1.88 (1.12 to 3.17)
Chronic pulmonary disease (no)
 Yes0.84 (0.52 to 1.38)0.97 (0.57 to 1.67)
Length of stay from initial donation (<3 d)
 3–4 d1.16 (0.96 to 1.41)1.37 (1.09 to 1.72)
 ≥5 d1.47 (1.01 to 2.13)1.62 (1.07 to 2.45)
Hospitalization within 1 year before surgery (no)
 Yes0.99 (0.72 to 1.36)0.94 (0.62 to 1.45)
  • Based on State Inpatient Databases data from California, New York, North Carolina, and Florida (n=4524). 95% CI, confidence interval.