Comparison 7. Subgroup by take‐up of treatment.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Cessation at longest follow‐up	50		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
1.1 High take‐up of treatment	29	9745	Risk Ratio (M‐H, Fixed, 95% CI)	2.00 [1.78, 2.24]
1.2 Moderate take‐up of treatment	18	6002	Risk Ratio (M‐H, Fixed, 95% CI)	1.87 [1.62, 2.15]
1.3 Low take‐up of treatment	3	2599	Risk Ratio (M‐H, Fixed, 95% CI)	1.52 [1.25, 1.86]