Comparison 6. CO monitoring + contingency management versus smoking cessation support.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Long‐term abstinence (all randomised)	2		Risk Ratio (M‐H, Random, 95% CI)	Totals not selected
1.1 Comparison: counselling, nicotine replacement therapy and monitoring only app	1		Risk Ratio (M‐H, Random, 95% CI)	0.0 [0.0, 0.0]
1.2 Comparison: counselling and nicotine replacement therapy	1		Risk Ratio (M‐H, Random, 95% CI)	0.0 [0.0, 0.0]
2 Long‐term abstinence (complete case)	2		Risk Ratio (M‐H, Random, 95% CI)	Totals not selected
2.1 Comparison: counselling, nicotine replacement therapy and monitoring only app	1		Risk Ratio (M‐H, Random, 95% CI)	0.0 [0.0, 0.0]
2.2 Comparison: counselling and nicotine replacement therapy	1		Risk Ratio (M‐H, Random, 95% CI)	0.0 [0.0, 0.0]