Monthly non-SCC death rates in subgroups of SLH patients. Estimates are shown for factors found to be significant in Table 2. ATG is antithymocyte globulin, TLI is total lymphoid irradiation, and BU is busulphan. (A) Number of patients in each subgroup. (B) Incidence rate per month of non-SCC death during the period 0 to 6 months since transplantation, by subgroup, and 95% CI (error bars) obtained using Poisson regression. Reference line and interval (shaded) shows the monthly death rate and its 95% CI for the entire SLH cohort. (C) Incidence rates per month of non-SCC death during the period 7 to 12 months since transplantation, overall, and by subgroup. (D) Incidence rates per month of non-SCC deaths during the period more than 12 months since transplantation, overall, and by subgroup. No TLI– or BU+ subjects were followed beyond 6 months, so the corresponding rates in panels C and D cannot be determined.