Comparison 5. Sensitivity analysis ‐ excluding studies at high risk of bias.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
5.1 Mindfulness training vs matched‐intensity smoking cessation treatment	2	407	Risk Ratio (M‐H, Random, 95% CI)	0.82 [0.51, 1.33]
5.2 Mindfulness training vs less intensive smoking cessation treatment	3	566	Risk Ratio (M‐H, Random, 95% CI)	0.81 [0.50, 1.33]
5.2.1 vs. less intensive behavioural support	1	257	Risk Ratio (M‐H, Random, 95% CI)	1.11 [0.57, 2.18]
5.2.2 vs. brief advice	1	213	Risk Ratio (M‐H, Random, 95% CI)	0.47 [0.18, 1.23]
5.2.3 vs. self‐help materials	1	96	Risk Ratio (M‐H, Random, 95% CI)	0.75 [0.28, 2.00]