Figure 1. Forest Plot of Standardized Incidence Ratios Comparing Sebaceous Carcinoma Risk Among Solid Organ Transplant Recipients to the General Population.

The standardized incidence ratio is the ratio of observed to expected number of cases for each group. The expected number was derived by applying cancer registry rates to the solid organ transplant recipient cohort according to sex, race/ethnicity, attained age, calendar year, and registry area. SIR indicates standardized incidence ratio.