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Table 1 Data sources for process analysis

From: Community based yoga classes for type 2 diabetes: an exploratory randomised controlled trial

Source of data Type and quantity of data Insights from these data
Yoga participants Attendance records for all classes 4 focus groups (2 before class began, 2 after last class) 10 semi-structured interviews Text messages from 7 participants Whether people attended and if not, why not Hopes and fears for yoga Evaluation of their own performance and perceptions of barriers to yoga exercise Confidence and motivation to continue
Yoga teachers 2 semi-structured interviews (one with each teacher) Type of individual who might benefit Type of exercise that might be beneficial Suggestions for intensity and duration of exercise sessions
Ethnographic observation Field notes from researchers' attendance as participant observers at yoga class Participants' engagement with the class Practical constraints e.g. noise, room size
Documentary sources Letters, emails, and file notes relating to setting up and running the project (e.g. relating to gaining access to practices, recruitment, linking with clinical care) Operational challenges and how they might be reduced or avoided next time