Each interviewer interviewed +/− 50 women over a ten-day period.
Each interviewer interviewed approximately 30 40 patients depending on the area covered and the distances between the houses of respondents.
Oral consent was given to each interviewer before the interview commenced.
To enhance inter-rater reliability, one interview for each interviewer was video-recorded and rated by the other interviewers.
At the time of interview however, each interviewer determined whether the exact wording – or even the question – was put.
After training, each interviewer conducted several test interviews of which one interview was videotaped and evaluated by one study center responsible for the quality assurance (Freiburg).
Each interviewer audio-recorded all interviews until they had eight interviews containing several items rated positive or suspected.
The next step entailed the aggregation of results by each interviewer from all individual interviews by items to assess if there were common themes.
Each interviewer carried out 6 8 interviews.
Each interviewer conducted all three interviews with a given participant.
Each interviewer conducted between three and five interviews per day.
