Of these respondents, 182 reported having had sexual intercourse in the past 12 months, 1213 indicated that they had no sexual intercourse in the preceding 12 months to the survey, and 741 did not respond to the question whether they had sexual intercourse in the past 12 months.
A total of 46percentt of participants said they had had unprotected anal intercourse in the preceding six months.
The women's demographic details were recorded and inquiries about whether they had sexual intercourse in the preceding 12 h.
For 12 women not reporting any intercourse for the preceding 2 months, all urinary hCG measurements were below the detection limit of 0.5 IU/L.
We observed significant differences for gender, age, number of partners in the preceding 6 months, receptive anal intercourse, STI related symptoms, HIV status and having received money for sex in the preceding 6 months between all clusters.
The first outcome variable was high-risk sexual behaviour, a self-report of at least one episode of unprotected anal or vaginal intercourse in the preceding 6 months with a partner whose HIV status was unknown or discordant.
Of approximately 600 men who were approached in five gyms in central Tel Aviv, 379 who were older than 18 years of age and reported more than one act of sexual intercourse in the preceding 6 months completed the questionnaire.
However, it should be emphasised that women with vaginal bleeding, ruptured fetal membranes, or who had had unprotected sexual intercourse in the preceding 24 hrs or transvaginal ultrasound in the preceding 6 hours were excluded from these studies [ 68– 73, 74, 76, 76].
Men living in central Israel who had trained for more than a month in one of the selected gyms, who were older than 18 years, and who reported more than one act of sexual intercourse in the preceding 6 months were eligible for this convenience sampling study.
Participants in this cross-sectional study who exercised more than the median number of anaerobic training hours were defined as performing intensive anaerobic training (IAT), and those who had performed more than one act of unprotected anal/vaginal intercourse in the preceding 6 months with a partner whose HIV status was unknown were defined as high risk.
