Findings

What do systematic reviews say?

385 questions · 395 findings · 26 reviews · Public Health

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No studies found 82 · 20.8%GRADE not reported 24 · 6.1%Very low 78 · 19.7%Low 111 · 28.1%Moderate 78 · 19.7%High 22 · 5.6%

Physical activity vs control

Body‐mass index z score (zBMI) · children aged 6‐12 years

1 finding from 1 review

Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
no estimate extracted
8 studies · 6841 participants
Moderate

Physical activity vs control

Body‐mass index (BMI) · children aged 6‐12 years

1 finding from 1 review

Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
no estimate extracted
14 studies · 16410 participants
Moderate

Physical activity vs control

Body‐mass index (BMI) · children aged 0‐5 years

1 finding from 1 review

Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
no estimate extracted
5 studies · 2233 participants
High

Physical activity vs control

Body‐mass index z score (zBMI) · children aged 0‐5 years

1 finding from 1 review

Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 1053 participants
High

Physical activity vs control

Body‐mass index z score (zBMI) · children aged 13‐18 years

1 finding from 1 review

Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
no estimate extracted
1 study · 100 participants
Low

Physical activity vs control

Body‐mass index (BMI) · children aged 13‐18 years

1 finding from 1 review

Interventions for preventing obesity in children 2019 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 720 participants
Very low

Adverse event outcomes for dietary combined with physical activity interventions vs control

BMI short‐term (12 weeks from baseline to < 9 months) · children aged 5 to 11 years

1 finding from 1 review

Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
27 studies · 16066 participants
Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

Body‐mass index (BMI) · children aged 5 to 11 years

2 findings from 1 review

Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
21 studies · 17547 participants
Moderate
Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
16 studies · 22098 participants
Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

zBMI short term (12 weeks from baseline to < 9 months) · children aged 5 to 11 years

1 finding from 1 review

Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
26 studies · 12784 participants
Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

zBMI medium term (9 months to < 15 months) · children aged 5 to 11 years

1 finding from 1 review

Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
24 studies · 20998 participants
Moderate

Adverse event outcomes for dietary combined with physical activity interventions vs control

zBMI long term (> 15 months) · children aged 5 to 11 years

1 finding from 1 review

Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
22 studies · 23594 participants
Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

Serious adverse events · children aged 5 to 11 years

1 finding from 1 review

Interventions to prevent obesity in children aged 5 to 11 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
19 studies · 27882 participants
Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

Body‐mass index (BMI) · children aged 12 to 18 years

3 findings from 1 review

Interventions to prevent obesity in children aged 12 to 18 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
11 studies · 3429 participants
High
Interventions to prevent obesity in children aged 12 to 18 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
8 studies · 5612 participants
Moderate
Interventions to prevent obesity in children aged 12 to 18 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
6 studies · 8736 participants
Moderate

Adverse event outcomes for dietary combined with physical activity interventions vs control

zBMI short term (12 weeks from baseline to < 9 months) · children aged 12 to 18 years

1 finding from 1 review

Interventions to prevent obesity in children aged 12 to 18 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 515 participants
Very low

Adverse event outcomes for dietary combined with physical activity interventions vs control

zBMI medium term (9 months to < 15 months) · children aged 12 to 18 years

1 finding from 1 review

Interventions to prevent obesity in children aged 12 to 18 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
6 studies · 3511 participants
Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

zBMI long term (> 15 months) · children aged 12 to 18 years

1 finding from 1 review

Interventions to prevent obesity in children aged 12 to 18 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
7 studies · 8430 participants
Low

Adverse event outcomes for dietary combined with physical activity interventions vs control

Serious adverse events · children aged 12 to 18 years

1 finding from 1 review

Interventions to prevent obesity in children aged 12 to 18 years old 2024 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 2394 participants
Very low

Interventions targeting multiple sources vs practice

All‐cause mortality · general population

1 finding from 1 review

Interventions to reduce ambient particulate matter air pollution and their effect on health 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
Very low

Interventions targeting multiple sources vs practice

Cardiovascular mortality · general population

The review found no eligible studies for this question.

1 finding from 1 review

Interventions to reduce ambient particulate matter air pollution and their effect on health 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Interventions targeting multiple sources vs practice

Mortality (respiratory events) ‐ not reported · general population

The review found no eligible studies for this question.

1 finding from 1 review

Interventions to reduce ambient particulate matter air pollution and their effect on health 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found