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Table 1 Number of participants randomised and numbers responding based on first, second and third mail out (Number randomisedā€‰=ā€‰125)

From: A small unconditional non-financial incentive suggests an increase in survey response rates amongst older general practitioners (GPs): a randomised controlled trial study

Ā 

Total N

Total responders n (%)

Responders by group, n (%)

OR (95% CI)

Initial mail out

ā€‚Pen

63

Ā 

27 (42.9%)

1.46 (0.71- 3.02)

ā€‚No pen

62

Ā 

21 (33.9%)

1.00

Total

125

48 (38.4%)

Ā Ā 

First reminder

ā€‚Pen

63

Ā 

36 (57.1%)

1.85 (0.91 - 3.75)

ā€‚No pen

62

Ā 

26 (41.9%)

1.00

Total

125

62 (49.6%)

Ā Ā 

Final reminder

ā€‚Pen

63

Ā 

39 (61.9%)

1.85 (0.91 - 3.77)

ā€‚No pen

62

Ā 

29 (46.8%)

1.00

Total

125

68 (54.4%)

Ā Ā