Table 1. Comparison of the major risk factors governing survival of renal transplants.

Factors for Increased Graft Rejection	Survival of the Graft	Factors for Better Graft Survival	Survival of the Graft
Acute transplant rejection episodes	6.6 years	No acute transplant rejection episodes	12.5 years
Non- HLA matched grafts	8.6 years	HLA matched graft	12.4 years
Recipient age <14 years	Less chances of <5 years survival	Recipient age >14 years but <70 years	More chances of >5 years survival
Donor-Recipient Mismatch (Young recipient-Old donor)	8.7 years	Donor-Recipient Match (Young recipient-Young donor)	11.64 years
Black Race	7.2 years	White Race	13.3 years
Antibodies to both class 1 and class 2 HLA antigens (2 years survival)	71%	Antibodies to either HLA class 1 or class 2 antigens (2 years survival)	77% and 79% respectively