Overall survival. (A) Overall survival by recipient age and donor-recipient relationship. The 2-year overall survival adjusted for recipient cytomegalovirus serostatus, disease, and DRI among recipients younger than 55 years was 61% (95% CI, 51%-69%) for parent donors, 62% (95% CI, 55%-68%) for sibling donors, and 59% (95% CI, 49%-67%) for offspring donors, and among recipients at least 55 years old, it was 45% (95% CI, 36%-54%) for sibling donors and 48% (95% CI, 43%-54%) for offspring donors. (B) Overall survival by recipient age and donor age. Two-year overall survival, adjusted for recipient cytomegalovirus serostatus, disease, and disease risk index among recipients younger than 55 years was 61% (95% CI, 53%-58%) with donors younger than 30 years and 60% (95% CI, 54%-66%) with donors at least 30 years old, and among recipients at least 55 years old, it was 53% (95% CI, 43%-62%) with donors younger than 30 years and 46% (95% CI, 41%-51%) with donors at least 30 years old.