Findings

What do systematic reviews say?

18 questions · 18 findings · 1 reviews · Public Health · Headline outcomes only

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No studies found 8 · 44.4%GRADE not reported 0 · 0%Very low 8 · 44.4%Low 1 · 5.6%Moderate 1 · 5.6%High 0 · 0%

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

Death (all‐cause) · 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

Mental development · 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

Cognitive function and motor skill development · 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

Cretinism · 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

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

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