E 2306-A study published in 1990
Question # 00400298
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Updated on: 10/06/2016 12:20 AM Due on: 10/06/2016
A study published in 1990 (Am J Pub Health 80:p. 209-210) investigated the occurrence of HIV infection among prisoners in Nevada. Of 1105 prison inmates who were tested for HIV upon admission to the prison system, 36 were found to be HIV seropositive. All HIV seronegative prisoners were followed for a total of 1207 person-years and retested for HIV upon release from prison. Two of the uninfected inmates demonstrated evidence of new HIV infection. Assuming that the two prisoners were infected during their time in prison:
- Based on the above information,
- calculate the incidence rate of HIV infection among prisoners in the Nevada prisons.
- Express the incidence rate calculated in part a in terms of cases per 1000 person-years.
- Calculate the prevalence of HIV infection among the incoming prisoners in the Nevada prisoners under study.
- What is the size of the population at risk for HIV at the beginning of the study?
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Solution: E 2306-A study published in 1990