Kaplan-Meier curves of kidney allograft survival by (A) donor type and (B) presence of DSA on the day of transplantation. Panel A shows the classic approach to determine kidney allograft survival based on donor status (that is, SCD or ECD). Panel B integrates donor status with the presence or absence of DSA on the day of transplantation. SCD=standard criteria donor; ECD=expanded criteria donor; DSA=donor specific anti-HLA antibodies; SCD/DSA−=patients receiving SCD transplants without DSA; SCD/DSA+=patients receiving SCD transplants with DSA; ECD/DSA−=patients receiving ECD transplants without DSA; ECD/DSA+=patients receiving ECD transplants with DSA; HR=hazard ratio