There is also research literature on heterosexual anal intercourse among drug-using subsamples, which has found a relationship between anal intercourse and both injection and non-injection drug use Bogart et al.
Limitations The current study has limitations worth noting.
Stanford: Stanford University Press; 1987.
Upon arrival at the focus group location, participants were first informed about the nature of the study and all associated risks and benefits.
In the United States, general population surveys have suggested that the prevalence of anal intercourse among heterosexuals has increased over time Leichliter,.
Sexual behavior and selected health measures: Men and women 15—44 years of age, United States, 2002.