Table 2 The stepwise approach used for the data analysis

Step 1

The entire data were read through to obtain an overview

Step 2

Text segments that were relevant to the research question were selected

Step 3

The text segments were sorted and coded

Step 4

The codes were categorized into themes and sub-themes

Step 5

The interpretations were confirmed by moving back and forth between the data segments and the context in which they arose during the interviews

Step 6

The themes were interpreted by applying a theoretic approach in accordance with the parameters of an acceptability model