Comparison 5. Self‐help plus NRT vs NRT alone.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Long‐term abstinence	3	1769	Risk Ratio (M‐H, Random, 95% CI)	1.05 [0.86, 1.30]
1.1 Non‐tailored materials	1	303	Risk Ratio (M‐H, Random, 95% CI)	0.85 [0.54, 1.34]
1.2 Tailored materials	2	1466	Risk Ratio (M‐H, Random, 95% CI)	1.11 [0.88, 1.41]