Twelve patients (8 women, 4
men) had used the Resperate and six patients (5 women,
1 man) had used the CD player. All of these patients
agreed to be interviewed from 15 to 30 min.
The aim of the interviews was explained and consisted
of open-and closed-ended questions. The
interviewer transcribed all the responses verbatim.
Data were subjected to content analysis [18]. The
author searched for similarities and differences in
the written answers from the interviews. In the next
step the author identified categories that appeared
meaningful. The first author made the analysis and
the co-authors (IE, KIK) also read the interviews
and, after a few adjustments, all agreed on the formulated
categories.