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Table 6 Sub-studies

From: The use of healthcare systems data for RCTs

Sub-study question

Number of sub-studies

Questionnaire response rate

 

 Only checking the response rate

2 (18%)

 Including a “Thank you” note

2 (18%)

 Including a pen

1 (9%)

 Including an animated participant video

1 (9%)

 Changing the questionnaire frequency

1 (9%)

 Including a social retention cover letter

1 (9%)

Adherence to treatment and ACT reporting

2 (18%)

Patient-reported success rate of treatment

1 (9%)