The following synopsis is based on data from a study of the occurrence of HIV infection among prisoners in Nevada. A study published in the American Journal of Public Health investigated the occurrence of HIV infection among prisoners in Nevada. Of 1,105 prison inmates who were tested for HIV at the start of the study, 36 were found to be infected. All uninfected persons were followed for a total of 1,207 person-years and retested for HIV upon release from prison. Two of the uninfected inmates demonstrated evidence of new HIV infection contracted in prison.
1. Calculate the incidence rate of HIV acquisition among these prisoners.
2. How many individuals provided data for the calculation in Question 2?