Findings

What do systematic reviews say?

22 questions · 29 findings · 9 reviews · Tobacco Addiction

No studies found 1 · 3.4%GRADE not reported 0 · 0%Very low 9 · 31%Low 9 · 31%Moderate 6 · 20.7%High 4 · 13.8%

Smoking cessation Self‐reported abstinence (majority) · callers to quitlines

The intervention probably leads to higher smoking cessation Self‐reported abstinence (majority) (moderate certainty).

1 finding from 1 review

Telephone counselling for smoking cessation 2019 · Cochrane Headline outcomes only
RR 1.38 [1.19, 1.61]
14 studies · 32484 participants
Moderate

Smoking cessation Self‐reported abstinence (majority) · smokers not calling quitlines

The intervention probably leads to higher smoking cessation Self‐reported abstinence (majority) (moderate certainty).

1 finding from 1 review

Telephone counselling for smoking cessation 2019 · Cochrane Headline outcomes only
RR 1.25 [1.15, 1.35]
65 studies · 41233 participants
Moderate