Table 5.

Categories and subcategories of acceptability.

Categories with TFAa definition of each acceptability component	Subcategories generated inductively based on interview data and free-text answers in the questionnaires
Affective attitude: how an individual feels about the intervention	General feelings Design and function
Perceived effectiveness: the extent to which the intervention is perceived as likely to achieve its purpose	Knowledge and understanding Goals and strategies Collaboration between employee and employer Flexibility and precision Importance of the context
Intervention coherence: the extent to which the participant understands the intervention and how it works	Interpretation of graphs and components
Self-efficacy: the participants’ confidence that they can perform the behaviors required to participate in the intervention	General capabilities Remember to use SWEPPEb
Burden: the perceived amount of effort that is required to participate in the intervention	Time aspects Effort in relation to energy Technical issues
Ethicality: the extent to which the intervention has good fit with an individual’s value system	Privacy

^aTFA: theoretical framework of acceptability.

^bSWEPPE: Sustainable Worker Digital Support for Persons with Chronic Pain and Their Employers.