Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

84 questions · 91 findings · 8 reviews · Public Health

No studies found 4 · 4.4%GRADE not reported 0 · 0%Very low 10 · 11%Low 37 · 40.7%Moderate 24 · 26.4%High 16 · 17.6%

Intervention not reported

Physical activity % Physically active Intervention compared to control adjusted pre/post cross‐sectional sampling (end of intervention to 6 years) · whole communities (adults, adolescents and children)
1 finding from 1 review

Intervention not reported

Physical activity % physically active Intervention compared to control adjusted pre‐post cross‐sectional sampling (end of intervention to 3 years, 4 months) · whole communities (adults, adolescents and children)
1 finding from 1 review

Intervention not reported

Physical activity Average daily minutes of moderate to vigorous (24 months) · whole communities (adults, adolescents and children)
1 finding from 1 review

Targeted mass media intervention vs targeted mass media intervention plus personalised content

Weekly physical activity meeting target from guidelines, 3 months from baseline · adult, ethnic minority groups: Latino immigrants, elderly Chinese immigrants, self‐described Americans of African heritage

It is very uncertain whether targeted mass media intervention changes weekly physical activity meeting target from guidelines, 3 months… compared with targeted mass media intervention plus personalised content (very low certainty).

1 finding from 1 review

Targeted mass media intervention vs targeted mass media intervention plus personalised content

Knowledge of nutrition and physical activity guidelines · adult, ethnic minority groups: Latino immigrants, elderly Chinese immigrants, self‐described Americans of African heritage

It is very uncertain whether targeted mass media intervention changes knowledge of nutrition and physical activity guidelines compared with targeted mass media intervention plus personalised content (very low certainty).

1 finding from 1 review