Findings

What do systematic reviews say?

3,429 questions · 3,558 findings · 436 reviews

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No studies found 660 · 18.5%GRADE not reported 375 · 10.5%Very low 727 · 20.4%Low 887 · 24.9%Moderate 709 · 19.9%High 200 · 5.6%

Intervention not reported

a. Weight · all populations, including pregnant women, from any country

1 finding from 1 review

Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders 2019 · Cochrane Headline outcomes only
no estimate extracted
83 participants
Very low

Intervention not reported

b. Height assessment tool not reported · all populations, including pregnant women, from any country

1 finding from 1 review

Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders 2019 · Cochrane Headline outcomes only
no estimate extracted
83 participants
Very low

Intervention not reported

c. Weight‐for‐age computed from weight and age values · all populations, including pregnant women, from any country

1 finding from 1 review

Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders 2019 · Cochrane Headline outcomes only
no estimate extracted
83 participants
Very low

Intervention not reported

d. Height‐for‐age computed from height and age values · all populations, including pregnant women, from any country

1 finding from 1 review

Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders 2019 · Cochrane Headline outcomes only
no estimate extracted
83 participants
Very low

Intervention not reported

e. Weight‐for‐height computed from weight and height values · all populations, including pregnant women, from any country

1 finding from 1 review

Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders 2019 · Cochrane Headline outcomes only
no estimate extracted
83 participants
Very low

Interventions targeting vehicular 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
Low

Interventions targeting industrial sources vs practice

Mortality (respiratory events) ‐ not reported · General population, as well as age‐specific subgroups (< 1 year; < 14 years; > 65 years)

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 industrial sources vs practice

Particulate matter (PM10) · General population, as well as age‐specific subgroups (< 1 year; < 14 years; > 65 years)

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 industrial sources vs practice

Fine particulate matter (PM2.5) · General population, as well as age‐specific subgroups (< 1 year; < 14 years; > 65 years)

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
Low

Interventions targeting industrial sources vs practice

Coarse particulate matter · General population, as well as age‐specific subgroups (< 1 year; < 14 years; > 65 years)

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 industrial sources vs practice

Combustion‐related particulate matter · General population, as well as age‐specific subgroups (< 1 year; < 14 years; > 65 years)

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 residential 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 residential sources vs practice

Cardiovascular 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
Low

Interventions targeting residential sources vs practice

Mortality (respiratory events) ‐ not reported · 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 residential sources vs practice

Particulate matter (PM10) · 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 residential sources vs practice

Fine particulate matter (PM2.5) · 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 vehicular sources vs practice

Cardiovascular 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
Low

Interventions targeting residential sources vs practice

Coarse particulate matter · 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 residential sources vs practice

Combustion‐related particulate matter · 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

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