Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

77 questions · 77 findings · 4 reviews · Public Health

No studies found 28 · 36.4%GRADE not reported 0 · 0%Very low 31 · 40.3%Low 11 · 14.3%Moderate 7 · 9.1%High 0 · 0%

Targeted mass media intervention vs general population mass media intervention

Attempts to quit smoking · mass media intervention for promoting healthy behaviours

It is very uncertain whether targeted mass media intervention changes quit‐attempts, 3 months compared with general population mass media intervention (very low certainty).

1 finding from 1 review