[Detection of HIV antibodies among prisoners from penitentiary units within the district penal institutions in Cracow].

The reports on the high percentage of HIV infected persons in West European prisons brought about similar investigations in Kraków. 2794 prisoners and a control group of 241 people were examined. The authors used a questionnaire and detected HIV antibodies. The number of seropositive prisoners was not essential. The value of structure factor was 0.15% for prisoners, and in the control group it was 0%. The value of the test u = 0.64, statistical differences were not significant - p greater than 0.05.