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Table 2 Sample size calculation in a mixed-method study

From: Development and evaluation of an eHealth self-management intervention for patients with chronic kidney disease in China: protocol for a mixed-method hybrid type 2 trial

Method

Sampling

Participants

Sample (range between records)

Face to face interview

Purposive, Convenience

• Care providers

• Patients

10–15 care providers minimum

10–15 patients minimum

Focus group discussion

Purposive, Convenience

• Patients

2–3 groups of 8–10 patients in total

Observation

Purposive, Convenience

• Care providers

• Patients

10–15 observations minimum

Survey

Randomly

• Patients

230 patients minimum