SMS (RR 1.54, 95% CI 1.20–1.99), telephone (RR 1.56, 95% CI 1.05–2.33) and multicomponent interventions (RR 1.35, 95% CI 1.08–1.69) were effective, whereas email, face-to-face and web interventions did not reach statistical significance.
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Efficacy of digital interventions for smoking cessation by type and method: a systematic review and network meta-analysis.
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