From 2007 to 2009, we conducted 10-minute telephone interviews of OTRs whose transplants were performed at Northwestern Memorial Hospital in Chicago, Illinois, between November 12, 1977, and January 8, 2009. Skin type, date(s) and type of transplant(s), duration of immunosuppression, and skin cancer history were based on participants' self-reports. Participants were asked to select the response that most closely described their skin tone among the following 6 choices: very fair, fair, olive, light brown, dark brown, and very dark. The skin color scale has good reliability (κ = 0.71) and validity compared with the standard Fitzpatrick phototype scale.12,13 We reviewed the medical record to confirm the date of the transplant(s), and the pathology report, when available, to confirm the type of skin cancer. The research was approved by the institutional review board of Northwestern University.