Findings

What do systematic reviews say?

245 questions · 245 findings · 20 reviews · Public Health

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No studies found 55 · 22.4%GRADE not reported 26 · 10.6%Very low 92 · 37.6%Low 54 · 22%Moderate 18 · 7.3%High 0 · 0%

Intervention not reported

Hypothyroidism · all populations, including pregnant women, from any country

The review found no eligible studies for this question.

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
Studies not reported
No studies found

Intervention not reported

Adverse effects (RCT) · 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
1 study · 33 participants
Low

Intervention not reported

Urinary iodine concentration (RCT) · 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
6 studies · 2032 participants
Moderate

Intervention not reported

Urinary iodine concentration (non‐RCT) · 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
262 participants
Very low

Intervention not reported

Thyroid‐stimulating hormone concentration · all populations, including pregnant women, from any country

The review found no eligible studies for this question.

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
Studies not reported
No studies found

Intervention not reported

Serum thyroglobulin concentration · all populations, including pregnant women, from any country

The review found no eligible studies for this question.

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
Studies not reported
No studies found

Intervention not reported

Goitre prevalence (RCT) · 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
1 study · 1 participants
Very low

Intervention not reported

Goitre prevalence (non‐RCT) · all populations, including pregnant women, from any country

It is very uncertain whether the intervention changes goitre prevalence (non‐RCT) (very low certainty).

1 finding from 1 review

Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders 2019 · Cochrane Headline outcomes only
OR 1.6 [0.6, 4.31]
83 participants
Very low

Intervention not reported

Physical development measures (non‐RCT) · all populations, including pregnant women, from any country

The review found no eligible studies for this question.

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
Studies not reported
No studies found

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