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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
Intervention NR
Probability of outbreaks
Non‐pharmacological measures implemented in the setting of long‐term care facilities to prevent SARS‐CoV‐2… (2021) · Cochrane
no estimate extractedNRVery low
Unconditional cash transfers vs no intervention
Prevalence of undernourishment · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Conditional cash transfers vs no intervention
Food security · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Conditional cash transfers vs no intervention
Dietary diversity · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted2 studies · 3937 participantsModerate
Conditional cash transfers vs no intervention
Stunting · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted4 studies · 3529 participantsLow
Conditional cash transfers vs no intervention
Wasting · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted2 studies · 2116 participantsLow
Conditional cash transfers vs no intervention
Cognitive function and development · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted2 studies · 5383 participantsHigh
Income‐generation interventions vs no intervention
Prevalence of undernourishment · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Income‐generation interventions vs no intervention
Proportion of household expenditure on food · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted434 participantsUngraded
Income‐generation interventions vs no intervention
Food security · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted1 study · 2193 participantsLow
Income‐generation interventions vs no intervention
Dietary diversity · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted4 studies · 3677 participantsLow
Income‐generation interventions vs no intervention
Stunting · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted2 studies · 3466 participantsModerate
Unconditional cash transfers vs no intervention
Proportion of household expenditure on food · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted5 studies · 11271 participantsVery low
Income‐generation interventions vs no intervention
Wasting · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted2 studies · 3500 participantsModerate
Income‐generation interventions vs no intervention
Cognitive function and development · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Food vouchers vs no intervention
Prevalence of undernourishment · poor households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Food vouchers vs no intervention
Proportion of household expenditure on food · poor households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Food vouchers vs no intervention
Food security · poor households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Food vouchers vs no intervention
Dietary diversity · poor households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted2 studies · 2459 participantsLow
Food vouchers vs no intervention
Stunting (HAZ < –2SD) · poor households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted1 study · 1633 participantsModerate
Food vouchers vs no intervention
Wasting (WHZ < –2SD) · poor households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted1 study · 1633 participantsLow
Food vouchers vs no intervention
Cognitive function and development · poor households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Food and nutrition subsidies vs no intervention
Prevalence of undernourishment · primary schools and households and members of healthcare plan
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Unconditional cash transfers vs no intervention
Food security · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted6 studies · 10251 participantsHigh
Food and nutrition subsidies vs no intervention
Proportion of household expenditure on food · primary schools and households and members of healthcare plan
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted169485 participantsVery low
Food and nutrition subsidies vs no intervention
Food security · primary schools and households and members of healthcare plan
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Food and nutrition subsidies vs no intervention
Dietary diversity · primary schools and households and members of healthcare plan
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted1 study · 656 participantsLow
Food and nutrition subsidies vs no intervention
Stunting · primary schools and households and members of healthcare plan
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Food and nutrition subsidies vs no intervention
Wasting · primary schools and households and members of healthcare plan
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Food and nutrition subsidies vs no intervention
Cognitive function and development · primary schools and households and members of healthcare plan
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Social support vs no intervention
Prevalence of undernourishment · households at risk of food insecurity
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Social support vs no intervention
Proportion of household expenditure on food · households at risk of food insecurity
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Social support vs no intervention
Food security · households at risk of food insecurity
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted1687 participantsVery low
Social support vs no intervention
Dietary diversity · households at risk of food insecurity
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted1615 participantsVery low
Unconditional cash transfers vs no intervention
Dietary diversity · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted10 studies · 12631 participantsLow
Social support vs no intervention
Stunting · households at risk of food insecurity
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted1 study · 1481 participantsLow
Social support vs no intervention
Wasting · households at risk of food insecurity
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted1 study · 1481 participantsModerate
Social support vs no intervention
Cognitive function and development · households at risk of food insecurity
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Unconditional cash transfers vs no intervention
Stunting · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted4 studies · 4713 participantsLow
Unconditional cash transfers vs no intervention
Wasting · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted4 studies · 6396 participantsVery low
Unconditional cash transfers vs no intervention
Cognitive function and development · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted3 studies · 10813 participantsHigh
Conditional cash transfers vs no intervention
Prevalence of undernourishment · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extractedNRNo studies
Conditional cash transfers vs no intervention
Proportion of household expenditure spent on food · children, adults, households
Community‐level interventions for improving access to food in low‐ and middle‐income countries (2020) · Cochrane
no estimate extracted2 studies · 4760 participantsHigh
Intervention NR
Implementation of policies, practices or programmes that promote child healthy eating, physical activity and/or obesity prevention · children up to the age of 6 years
Strategies to improve the implementation of healthy eating, physical activity and obesity prevention… (2020) · Cochrane
SMD 0.49 [0.19, 0.79]9 studies · 495 participantsModerate
Intervention NR
Cost or cost‐effectiveness of strategies to improve the implementation of policies, practices or programmes in childcare services · children up to the age of 6 years
Strategies to improve the implementation of healthy eating, physical activity and obesity prevention… (2020) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Adverse consequences of strategies to improve the implementation of policies, practices or programmes in childcare services · children up to the age of 6 years
Strategies to improve the implementation of healthy eating, physical activity and obesity prevention… (2020) · Cochrane
no estimate extracted2 studies · 148 participantsLow
Intervention NR
Measures of child diete · children up to the age of 6 years
Strategies to improve the implementation of healthy eating, physical activity and obesity prevention… (2020) · Cochrane
no estimate extracted2 studies · 134 participantsLow
Intervention NR
Measures of child physical activityf · children up to the age of 6 years
Strategies to improve the implementation of healthy eating, physical activity and obesity prevention… (2020) · Cochrane
no estimate extracted2 studies · 53 participantsModerate
Intervention NR
Measures of child weight status · children up to the age of 6 years
Strategies to improve the implementation of healthy eating, physical activity and obesity prevention… (2020) · Cochrane
no estimate extracted2 studies · 298 participantsModerate
'Summary of findings' table for primary outcomes: Taxation of sugar‐added foods vs no taxation
Mean consumption (purchased quantities) of 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