Estimating the incidence of retinoblastoma in Texas.

The purpose of this study was to estimate the number of retinoblastoma cases anticipated each year in various urban and rural areas in Texas. We obtained the most recent data on the number of live births in Texas from the Texas Department of Health. Using those data and the retinoblastoma incidence rate of 1 in 15,000 live births, we estimated that 26 cases of the disease will be diagnosed in Texas each year. Nearly half of those cases will occur in infants in rural areas of the state. We compared those values with data from the Texas Cancer Registry. Primary care physicians, particularly in rural areas of Texas, must screen patients for retinoblastoma and consider arrangements for rapid referral when the diagnosis is suspected.