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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