Graft Survival Patient Survival Variable Full Stepwise Full Stepwise BMI Category                 Underweight 5.383 * 6.159 ** 10.168   1.565   Normal Reference Reference Reference Reference Overweight 2.283 * 2.578 ** 1.002   0.942   Obese 2.681 * 2.846 ** 0.393   0.671   Morbidly Obese 4.279 * 4.351 ** 2.559   1.762   Extremely Morbidly Obese 3.434   2.754   3.229   1.551   Recipient Characteristics                 Gender                 Female 0.812       0.520       Race                 African American 1.385       0.582       Other 0.000       0.000       White Reference     Reference     Ethnicity                 Hispanic 3.026E+06       1.726E+07       Age (years)                 18 - 30 Reference     Reference     31 - 44 2.993       9.893E+07       45 - 59 2.459       5.784E+07       > 60 3.613       5.141E+07       Primary cause of ESRD                 Diabetes mellitus         2.227       47.176       Glomerulonephritis 0.779       1.004       PKD                1.798       4.130       Hypertension       1.172       1.623       Unknown                      20.783 *     0.000       Other                            Reference     Reference     Pre-Transplant Dialysis Duration                 None (pre-emptive)         Reference     Reference     0-12 months 1.691       14.737 *     13-24 months 1.906       20.687 *     25-60 months 1.784       13.530       More than 60 months 2.325       31.123 *     Diabetes 0.402       0.028       PVD 0.878       1.226       Donor Characteristics                 Gender                 Female 1.855       1.069       Race                 African American 0.965       0.088       Other 0.652       0.229       White                          Reference     Reference     Age (years)                 ≤ 18 2.052       0.915       19 - 30 Reference Reference Reference Reference 31 - 44 0.571   0.482 * 0.363       45 - 59 1.336       1.291       ≥ 60 0.694       0.797   4.984 ** BMI category (kg/m2)                 ≥ 10 to < 25            Reference     Reference     ≥ 25 to < 30 0.751       0.713       ≥ 30 0.583       0.345       Death due to stroke 2.405 * 2.716 *** 4.714       Terminal Creatinine ≥ 1.5 1.196       4.134       Hypertension history 0.806       0.275       Diabetes 1.864       32.789       CMV sero-positive 4.087E+05       2.723E+06       Transplant Factors                 Donor type                 SCD Reference     Reference     ECD 1.475       1.622       DCD 0.549       0.265       Peak PRA %                 0-10% Reference             11-30% 0.531       0.000       >30% 0.298       0.000       Unknown 0.404       0.000       CMV sero-pairing                 Unknown                   0.000       0.000       Donor - / Recipient -   Reference Reference Reference Reference Donor - / Recipient +  0.000   1.949 * 0.000       Donor + / Recipient -  0.673       1.901       Donor + / Recipient + 0.000       0.000       HLA Mismatches                 0 HLA mismatches Reference Reference Reference Reference 1 HLA mismatches 7.395   5.344 * 0.010       2 HLA mismatches 0.000       0.076       3 HLA mismatches 1.925       2.253E+07       4 HLA mismatches 1.387       5.460E+06       5 HLA mismatches 1.880       1.660E+07       6 HLA mismatches 3.451       9.818E+07   3.204 * Sensitized 16.315 * 4.564 *** 1.445E+09   7.116 *** Cold Ischemia Time                 0 to < 15 hours Reference     Reference     15 to < 20 hours 1.029       0.251       20 to < 26 hours 0.888       0.154       26+ hours 1.838       0.000       Unknown 0.730       0.313       Year                 2000 Reference     Reference     2001 1.022       0.719       2002 0.719       0.219       2003 0.553       0.026       2004 0.688       0.074       2005 0.429       0.555       2006 1.352       1.764       2007 0.000       0.000       Length of Stay 1.128 *** 1.105 *** 1.118 * 1.085 * * P-value < 0.05 ** P-value < 0.01 *** P-value < 0.001

Table 3: Cox proportional hazards full and stepwise models for graft and patient survival of privately-insured transplant recipients 2000-2007 (N=767).