This is because not every person was asked or required to answer every question.
First, as with many qualitative approaches, the sample size was small.
As can be seen in Fig.
The women may have been less likely to overtly refuse the anal intercourse if she was under the influence of drugs.
Excerpts were identified both conceptually based on the beginning and ending of a distinct idea and contextually including all necessary information for accurate interpretation.
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.