Interview guide
| Guiding questions for the telephone interview | HBM concept |
| How did you find out about the self-sampling service? | Cues to action |
| What are your views on home-based self-sampling for STIs? | Individual beliefs |
| What are the benefits? | Benefits |
| What are the barriers? | Barriers |
| What do you know about CT/NG? | Knowledge |
| What are the risks with CT/NG? | Knowledge/severity |
| How severe would an infection be for you? | Severity |
| How do you perceive your own risk of CT/NG? | Susceptibility |
| What made you order the test kit now? | Cues to action |
| How did you find using the kit? | Self-efficacy |
| What are your thoughts about the kit in relation to privacy? | Barriers |
| What are your thoughts about the results? | Barriers |
| What do you think about the time from order to result? | Benefits/barriers |
| What do you think about home-based self-sampling in relation to clinical sampling? | Benefits/barriers |
| How often do you consider one should take such a test? | Individual beliefs |
| How much would you be willing to pay for a test if it involved a cost? | Self-efficacy |
| Would you use the service again and/or recommend it to others? | Self-efficacy |
CT, Chlamydia trachomatis; HBM, Health Belief Model; NG, Neisseria gonorrhoeae; STIs, sexually transmitted infections.