Bitot's spots incidence · children aged between 6 months and 5 years
Vitamin A supplementation probably leads to lower bitot's spots incidence compared with placebo or usual care (moderate certainty).
1 finding from 1 review
Night blindness incidence · children aged between 6 months and 5 years
Vitamin A supplementation probably leads to lower night blindness incidence compared with placebo or usual care (moderate certainty).
1 finding from 1 review
Intervention not reported
Proportion with an autism spectrum disorder diagnosis at baseline and · children diagnosed with autism spectrum disorder
1 finding from 1 review
Intervention not reported
Social communication at baseline and · children diagnosed with autism spectrum disorder
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Intervention not reported
Restricted and repetitive behaviours and interests at baseline and · children diagnosed with autism spectrum disorder
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Cognitive and neurobehavioural outcomes · children (aged 0–2 years)
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Adverse events · children (aged 0–6 years)
The review found no eligible studies for this question.
2 findings from 1 review
Blood lead levels (continuous)Blood lead level at end of duration Scale: 0–30 · children (aged 0–6 years)
2 findings from 1 review
Cognitive and neurobehavioural outcomes · children (aged 0–4 years)
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Adverse events · children (aged 0–4 years)
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Blood lead levels (continuous)Blood lead level at end of duration Scale: 0–30 · children (aged 0–4 years)
1 finding from 1 review
Household dust: floor dust lead levels · children (aged 0–4 years)
1 finding from 1 review
Adverse events · children (aged 0–2 years)
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Blood lead levels (continuous)Blood lead level at end of duration Scale: 0–30 · children (aged 0–2 years)
1 finding from 1 review
Floor dust ‐ hard floor (continuous) Floor dust lead levels Scale from: 0 to 40 · children (aged 0–2 years)
1 finding from 1 review
Cognitive and neurobehavioural outcomes · children (aged 0–6 years)
2 findings from 1 review
Household dust: floor dust lead levels · children (aged 0–6 years)
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Absenteeism · children aged from birth to 14 years old
It is very uncertain whether rinse‐free hand wash changes absenteeism for any reason (within the study period) Calculated as:… compared with control (very low certainty).
1 finding from 1 review
Absenteeism due to any illness (within the study period) Calculated as: an incident rate per child‐days possible Length of time observed: range = 1 to 11 months · children aged from birth to 14 years old
It is very uncertain whether rinse‐free hand wash changes absenteeism due to any illness (within the study period) Calculated… compared with control (very low certainty).
1 finding from 1 review
Adverse skin reactions (within the study period) Calculated as: number of events Length of time observed: range = 5 to 8 months · children aged from birth to 14 years old
It is very uncertain whether rinse‐free hand wash changes adverse skin reactions (within the study period) Calculated as:… compared with control (very low certainty).
1 finding from 1 review