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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

780 questions in 55 reviews · Public Health

current versions
No studies 162 · 20.8%Ungraded 52 · 6.7%Very low 231 · 29.6%Low 191 · 24.5%Moderate 122 · 15.6%High 22 · 2.8%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
'Summary of findings' table for secondary outcomes: Taxation of sugar‐added foods vs no taxation
Mean expenditure on untaxed sugar‐added foods · general population
Taxation of unprocessed sugar or sugar‐added foods for reducing their consumption and preventing obesity or… (2020) · Cochrane
no estimate extracted1 study · 40210 participantsVery low
'Summary of findings' table for secondary outcomes: Taxation of sugar‐added foods vs no taxation
Difference in mean expenditure on taxed sugar‐added foods compared with untaxed sugar‐added foods · general population
Taxation of unprocessed sugar or sugar‐added foods for reducing their consumption and preventing obesity or… (2020) · Cochrane
no estimate extracted1 study · 40210 participantsVery low
'Summary of findings' table for primary outcomes: Taxation of sugar‐added foods vs no taxation
Consumption of unprocessed sugar · general population
Taxation of unprocessed sugar or sugar‐added foods for reducing their consumption and preventing obesity or… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
'Summary of findings' table for primary outcomes: Taxation of sugar‐added foods vs no taxation
Energy intake from unprocessed sugar or sugar‐added foods · general population
Taxation of unprocessed sugar or sugar‐added foods for reducing their consumption and preventing obesity or… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
'Summary of findings' table for primary outcomes: Taxation of sugar‐added foods vs no taxation
Total energy intake · general population
Taxation of unprocessed sugar or sugar‐added foods for reducing their consumption and preventing obesity or… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
'Summary of findings' table for primary outcomes: Taxation of sugar‐added foods vs no taxation
Overweight · general population
Taxation of unprocessed sugar or sugar‐added foods for reducing their consumption and preventing obesity or… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
'Summary of findings' table for primary outcomes: Taxation of sugar‐added foods vs no taxation
Obesity · general population
Taxation of unprocessed sugar or sugar‐added foods for reducing their consumption and preventing obesity or… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
'Summary of findings' table for secondary outcomes: Taxation of sugar‐added foods vs no taxation
Substitution: mean consumption (purchased quantities) of untaxed sugar‐added foods · general population
Taxation of unprocessed sugar or sugar‐added foods for reducing their consumption and preventing obesity or… (2020) · Cochrane
no estimate extracted1 study · 40210 participantsVery low
'Summary of findings' table for secondary outcomes: Taxation of sugar‐added foods vs no taxation
Substitution: difference in mean consumption (purchased quantities) of untaxed sugar‐added foods compared with untaxed sugar‐added foods · general population
Taxation of unprocessed sugar or sugar‐added foods for reducing their consumption and preventing obesity or… (2020) · Cochrane
no estimate extracted1 study · 40210 participantsVery low
'Summary of findings' table for secondary outcomes: Taxation of sugar‐added foods vs no taxation
Mean expenditure on taxed sugar‐added foods · general population
Taxation of unprocessed sugar or sugar‐added foods for reducing their consumption and preventing obesity or… (2020) · Cochrane
no estimate extracted1 study · 40210 participantsVery low
Taxation of the fat content of foods vs no taxation
Total fat consumption · general population of Denmark
Taxation of the fat content of foods for reducing their consumption and preventing obesity or other adverse… (2020) · Cochrane
no estimate extracted1 study · 2000 participantsVery low
Taxation of the fat content of foods vs no taxation
Total saturated fat consumption · general population of Denmark
Taxation of the fat content of foods for reducing their consumption and preventing obesity or other adverse… (2020) · Cochrane
no estimate extracted1 study · 1293 participantsVery low
Taxation of the fat content of foods vs no taxation
Energy intake · general population of Denmark
Taxation of the fat content of foods for reducing their consumption and preventing obesity or other adverse… (2020) · Cochrane
no estimate extractedNRNo studies
Taxation of the fat content of foods vs no taxation
Overweight · general population of Denmark
Taxation of the fat content of foods for reducing their consumption and preventing obesity or other adverse… (2020) · Cochrane
no estimate extractedNRNo studies
Taxation of the fat content of foods vs no taxation
Obesity · general population of Denmark
Taxation of the fat content of foods for reducing their consumption and preventing obesity or other adverse… (2020) · Cochrane
no estimate extractedNRNo studies
Taxation of the fat content of foods vs no taxation
Total sales · general population of Denmark
Taxation of the fat content of foods for reducing their consumption and preventing obesity or other adverse… (2020) · Cochrane
no estimate extractedNRNo studies
Intervention vs Control
Device‐measured sedentary time · community‐dwelling adults under 60 years of age
Interventions outside the workplace for reducing sedentary behaviour in adults under 60 years of age (2020) · Cochrane
no estimate extracted4 participantsUngraded
Intervention vs Control
Self‐report TV viewing time · community‐dwelling adults under 60 years of age
Interventions outside the workplace for reducing sedentary behaviour in adults under 60 years of age (2020) · Cochrane
no estimate extracted4 participantsUngraded
Intervention vs Control
Device‐measured MVPA · community‐dwelling adults under 60 years of age
Interventions outside the workplace for reducing sedentary behaviour in adults under 60 years of age (2020) · Cochrane
no estimate extracted4 participantsUngraded
Intervention vs Control
Self‐report light PA · community‐dwelling adults under 60 years of age
Interventions outside the workplace for reducing sedentary behaviour in adults under 60 years of age (2020) · Cochrane
no estimate extracted4 participantsUngraded
Intervention vs Control
Adverse events and symptoms · community‐dwelling adults under 60 years of age
Interventions outside the workplace for reducing sedentary behaviour in adults under 60 years of age (2020) · Cochrane
no estimate extractedNRNo studies
Agricultural education with post‐harvest technologies vs usual agricultural support
Birth length for gestational age z‐score · pregnant and lactating women, infants, and children
Agricultural and nutritional education interventions for reducing aflatoxin exposure to improve infant and… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Agricultural education with post‐harvest technologies vs usual agricultural support
Birth weight for gestational age z‐score · pregnant and lactating women, infants, and children
Agricultural and nutritional education interventions for reducing aflatoxin exposure to improve infant and… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Agricultural education with post‐harvest technologies vs usual agricultural support
Low birth weight (less than 2500 g) · pregnant and lactating women, infants, and children
Agricultural and nutritional education interventions for reducing aflatoxin exposure to improve infant and… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Agricultural education with post‐harvest technologies vs usual agricultural support
Length‐ or height‐for‐age z‐score (LAZ) · pregnant and lactating women, infants, and children
Agricultural and nutritional education interventions for reducing aflatoxin exposure to improve infant and… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Agricultural education with post‐harvest technologies vs usual agricultural support
Stunting (LAZ ≥ 2 SD below reference median value) · pregnant and lactating women, infants, and children
Agricultural and nutritional education interventions for reducing aflatoxin exposure to improve infant and… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Agricultural education with post‐harvest technologies vs usual agricultural support
Weight‐for‐height z‐score (WHZ) · pregnant and lactating women, infants, and children
Agricultural and nutritional education interventions for reducing aflatoxin exposure to improve infant and… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Agricultural education with post‐harvest technologies vs usual agricultural support
Unintended effects of agricultural and nutritional education interventions to reduce the aflatoxin intake of infants, children, pregnant and lactating women · pregnant and lactating women, infants, and children
Agricultural and nutritional education interventions for reducing aflatoxin exposure to improve infant and… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Agricultural education with post‐harvest technologies vs usual agricultural support
Weight‐for‐age z‐score (WAZ) · pregnant and lactating women, infants, and children
Agricultural and nutritional education interventions for reducing aflatoxin exposure to improve infant and… (2020) · Cochrane
no estimate extracted1 study · 249 participantsVery low
Agricultural education with post‐harvest technologies vs usual agricultural support
Proportion of underweight children (WAZ ≥ 2 SD below reference median value) · pregnant and lactating women, infants, and children
Agricultural and nutritional education interventions for reducing aflatoxin exposure to improve infant and… (2020) · Cochrane
no estimate extracted1 study · 249 participantsVery low
Videoconferencing interventions vs usual care
Loneliness · older adults
Video calls for reducing social isolation and loneliness in older people: a rapid review (2020) · Cochrane
no estimate extracted3 studies · 201 participantsVery low
Videoconferencing interventions vs usual care
Social Isolation · older adults
Video calls for reducing social isolation and loneliness in older people: a rapid review (2020) · Cochrane
no estimate extracted0 participantsUngraded
Videoconferencing interventions vs usual care
Symptoms of depression · older adults
Video calls for reducing social isolation and loneliness in older people: a rapid review (2020) · Cochrane
no estimate extracted3 studies · 201 participantsVery low
Videoconferencing interventions vs usual care
Quality of life · older adults
Video calls for reducing social isolation and loneliness in older people: a rapid review (2020) · Cochrane
no estimate extracted1 study · 62 participantsVery low
Dietary interventions vs control
Body‐mass index z score (zBMI) · children aged 0‐5 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted1 study · 520 participantsModerate
Adverse event outcomes for dietary combined with physical activity interventions vs control
Accidents · children aged 0 to 5 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted1 study · 42 participantsVery low
Dietary interventions vs control
Body‐mass index z score (zBMI) · children aged 6‐12 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted9 studies · 7231 participantsHigh
Dietary interventions vs control
Body‐mass index (BMI) · children aged 6‐12 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted6 studies · 5061 participantsHigh
Physical activity interventions vs control
Body‐mass index z score (zBMI) · children aged 6‐12 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted8 studies · 6841 participantsModerate
Physical activity interventions vs control
Body‐mass index (BMI) · children aged 6‐12 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted14 studies · 16410 participantsModerate
Adverse event outcomes for physical activity interventions vs no intervention
Physical injuries · children aged 6‐12 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted1 study · 912 participantsLow
Adverse event outcomes for physical activity interventions vs no intervention
Underweight · children aged 6‐12 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted3 studies · 5266 participantsHigh
Adverse event outcomes for physical activity interventions vs no intervention
Depression · children aged 6‐12 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted1 study · 225 participantsLow
Adverse event outcomes for physical activity interventions vs no intervention
Body satisfaction · children aged 6‐12 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted1 study · 225 participantsLow
Adverse event outcomes for physical activity interventions vs no intervention
Increased weight concerns · children aged 6‐12 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted1 study · 225 participantsLow
Physical activity interventions vs control
Body‐mass index (BMI) · children aged 0‐5 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted5 studies · 2233 participantsHigh
Diet and physical activity interventions combined vs control
Body‐mass index z score (zBMI) · children aged 6‐12 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted20 studies · 24043 participantsLow
Diet and physical activity interventions combined vs control
Body‐mass index (BMI) · children aged 6‐12 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted25 studies · 19498 participantsLow
Adverse event outcomes for dietary combined with physical activity interventions vs no intervention or usual care
Underweight · children aged 6 to 12 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted2 studies · 784 participantsModerate
Adverse event outcomes for dietary combined with physical activity interventions vs no intervention or usual care
Depression · children aged 6 to 12 years
Interventions for preventing obesity in children (2019) · Cochrane
no estimate extracted1 study · 225 participantsLow