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Evidence found and GRADE certainty

4,410 questions · 8,901 findings · 1,091 reviews

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No studies found 1,687 · 19%GRADE not reported 1,469 · 16.5%Very low 1,969 · 22.1%Low 2,060 · 23.1%Moderate 1,302 · 14.6%High 414 · 4.7%

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Zinc supplementation in pregnant women vs supplementation without zinc or placebo to reduce stunting

Birth length · pregnant women

Zinc supplementation in pregnant women showed no clear difference in length (cm) at birth compared with supplementation without zinc or placebo to reduce stunting (moderate certainty).

1 finding from 1 review

Nutrition systems strengthening interventions targeting children vs no intervention or standard care to reduce stunting (height‐for‐age, length at 18 months)

Mean height‐for‐age z‐score · children under 5 years old

Nutrition systems strengthening interventions targeting children may leads to higher height‐for‐age (z‐score) at 18 months compared with no intervention or standard care to reduce stunting (height‐for‐age,… (low certainty).

1 finding from 1 review

Nutrition systems strengthening interventions targeting children vs no intervention or standard care to reduce stunting (height‐for‐age, length at 18 months)

Length (cm) · children under 5 years old

Nutrition systems strengthening interventions targeting children may leads to higher length (cm) at 18 months compared with no intervention or standard care to reduce stunting (height‐for‐age,… (low certainty).

1 finding from 1 review

Micronutrient or macronutrient supplementation interventions in children vs no intervention, or placebo to reduce stunting (height‐for‐age, length velocity, and length at 12 months)

Stunting · children under 5 years old

Micronutrient or macronutrient supplementation interventions in… showed no clear difference in height‐for‐age (z‐score) compared with no intervention, or placebo to reduce stunting (height‐for‐age,… (low certainty).

1 finding from 1 review

Micronutrient or macronutrient supplementation interventions in children vs no intervention, or placebo to reduce stunting (height‐for‐age, length velocity, and length at 12 months)

Height‐for‐age (z‐score) Length gain (6 months) · children under 5 years old
1 finding from 1 review

Micronutrient or macronutrient supplementation interventions in children vs no intervention, or placebo to reduce stunting (height‐for‐age, length velocity, and length at 12 months)

Height‐for‐age (%) at 18 months, 21 months Length gain · children under 5 years old
1 finding from 1 review

Micronutrient or macronutrient supplementation interventions in children vs no intervention, or placebo to reduce stunting (height‐for‐age, length velocity, and length at 12 months)

Length velocity (change in cm since start of supplementation) · children under 5 years old
1 finding from 1 review

Micronutrient or macronutrient supplementation interventions in children vs no intervention, or placebo to reduce stunting (height‐for‐age, length velocity, and length at 12 months)

Length velocity (cm/month) · children under 5 years old

It is very uncertain whether micronutrient or macronutrient supplementation interventions in… changes length velocity (cm/month) compared with no intervention, or placebo to reduce stunting (height‐for‐age,… (very low certainty).

1 finding from 1 review

Micronutrient or macronutrient supplementation interventions in children vs no intervention, or placebo to reduce stunting (height‐for‐age, length velocity, and length at 12 months)

Length (cm) · children under 5 years old

Micronutrient or macronutrient supplementation interventions in… showed no clear difference in length (cm) at 12 months compared with no intervention, or placebo to reduce stunting (height‐for‐age,… (low certainty).

1 finding from 1 review

NSAIDs vs control or placebo medications

Adverse event nausea and vomiting (0 to 24 hours) · adults undergoing brain surgery

Nonsteroidal anti‐inflammatory drugs (NSAIDs) showed no clear difference in adverse event nausea and vomiting (0 to 24 hours) compared with control or placebo medications (low certainty).

1 finding from 1 review