Table 1 Guide for semi-structured interviews in the AMBER cohort study

1.

A diagnosis of breast cancer is a significant life event. Tell me about what this diagnosis was like for you.

2.

Tell me about how you became involved with the AMBER Study.

3.

How did you decide to participate in the study?

Probes: What influenced your decision to participate?

What concerns did you have regarding participating in the study?

4.

As a participant in the AMBER Study, tell me about the recruitment process.

Probes: Did you receive any recruitment materials/a letter?

Did you receive any follow-up such as a phone call?

5.

Have you ever felt like quitting the AMBER Study?

Probes: What was happening that made you consider this action?

How did you decide to continue with the study?

What influenced this decision?

6.

Is there anything else you would like to add, related to what we’ve been discussing so far?

7.

Are there any questions I haven’t asked that you think would be important for me to ask?

8.

Do you have any questions?