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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)

162 questions in 26 reviews · Public Health

current versions
No studies 162 · 100%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

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
Day care programs combined with playpen provision vs playpen provision
Cost‐effectiveness · 9‐ to 47‐month‐old children in LMICs
Day care as a strategy for drowning prevention in children under 6 years of age in low‐ and middle‐income… (2021) · Cochrane
no estimate extractedNRNo studies
Day care programs (with additional components) vs no day care programs
Drowning (fatal and non‐fatal) · 1‐ to 5‐year‐old children in LMICs
Day care as a strategy for drowning prevention in children under 6 years of age in low‐ and middle‐income… (2021) · Cochrane
no estimate extractedNRNo studies
Day care programs (with additional components) vs no day care programs
Unsafe water exposure · 1‐ to 5‐year‐old children in LMICs
Day care as a strategy for drowning prevention in children under 6 years of age in low‐ and middle‐income… (2021) · Cochrane
no estimate extractedNRNo studies
Day care programs (with additional components) vs no day care programs
Incidence of unintentional injury · 1‐ to 5‐year‐old children in LMICs
Day care as a strategy for drowning prevention in children under 6 years of age in low‐ and middle‐income… (2021) · Cochrane
no estimate extractedNRNo studies
Day care programs (with additional components) vs no day care programs
Program safety · 1‐ to 5‐year‐old children in LMICs
Day care as a strategy for drowning prevention in children under 6 years of age in low‐ and middle‐income… (2021) · Cochrane
no estimate extractedNRNo studies
Day care programs vs playpen provision
Drowning morbidity · 9‐ to 47‐month‐old children in LMICs
Day care as a strategy for drowning prevention in children under 6 years of age in low‐ and middle‐income… (2021) · Cochrane
no estimate extractedNRNo studies
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
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
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
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
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
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
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
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
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
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
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
Staple foods fortified with vitamin A plus other micronutrients vs same unfortified staple foods
All‐cause mortality · general population over 2 years of age
Fortification of staple foods with vitamin A for vitamin A deficiency (2019) · Cochrane
no estimate extractedNRNo studies
Staple foods fortified with vitamin A plus other micronutrients vs same unfortified staple foods
All‐cause morbidity · general population over 2 years of age
Fortification of staple foods with vitamin A for vitamin A deficiency (2019) · Cochrane
no estimate extractedNRNo studies
Staple foods fortified with vitamin A plus other micronutrients vs same unfortified staple foods
Any adverse effects (e.g. hypervitaminosis A, as defined by the trialists) · general population over 2 years of age
Fortification of staple foods with vitamin A for vitamin A deficiency (2019) · Cochrane
no estimate extractedNRNo studies
Staple food fortified with vitamin A plus other micronutrients vs no intervention
Clinical vitamin A deficiency (as defined by night blindness) · general population over 2 years of age
Fortification of staple foods with vitamin A for vitamin A deficiency (2019) · Cochrane
no estimate extractedNRNo studies
Staple food fortified with vitamin A plus other micronutrients vs no intervention
All‐cause mortality · general population over 2 years of age
Fortification of staple foods with vitamin A for vitamin A deficiency (2019) · Cochrane
no estimate extractedNRNo studies
Staple food fortified with vitamin A plus other micronutrients vs no intervention
All‐cause morbidity · general population over 2 years of age
Fortification of staple foods with vitamin A for vitamin A deficiency (2019) · Cochrane
no estimate extractedNRNo studies
Staple food fortified with vitamin A plus other micronutrients vs no intervention
Any adverse effects (e.g. hypervitaminosis A, as defined by the trialists) · general population over 2 years of age
Fortification of staple foods with vitamin A for vitamin A deficiency (2019) · Cochrane
no estimate extractedNRNo studies
Staple foods fortified with vitamin A vs same unfortified staple foods
All‐cause mortality · general population above 2 years of age
Fortification of staple foods with vitamin A for vitamin A deficiency (2019) · Cochrane
no estimate extractedNRNo studies
Staple foods fortified with vitamin A vs same unfortified staple foods
All‐cause morbidity · general population above 2 years of age
Fortification of staple foods with vitamin A for vitamin A deficiency (2019) · Cochrane
no estimate extractedNRNo studies
Staple foods fortified with vitamin A vs same unfortified staple foods
Any adverse effects (e.g. hypervitaminosis A, as defined by the trialists) · general population above 2 years of age
Fortification of staple foods with vitamin A for vitamin A deficiency (2019) · Cochrane
no estimate extractedNRNo studies
Staple foods fortified with vitamin A plus other micronutrients vs same unfortified staple foods
Clinical vitamin A deficiency (as defined by night blindness) · general population over 2 years of age
Fortification of staple foods with vitamin A for vitamin A deficiency (2019) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Death (all‐cause) · all populations, including pregnant women, from any country
Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders (2019) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Mental development · all populations, including pregnant women, from any country
Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders (2019) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Cognitive function and motor skill development · all populations, including pregnant women, from any country
Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders (2019) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Cretinism · all populations, including pregnant women, from any country
Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders (2019) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Hypothyroidism · all populations, including pregnant women, from any country
Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders (2019) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Thyroid‐stimulating hormone concentration · all populations, including pregnant women, from any country
Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders (2019) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Serum thyroglobulin concentration · all populations, including pregnant women, from any country
Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders (2019) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Physical development measures (non‐RCT) · all populations, including pregnant women, from any country
Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders (2019) · Cochrane
no estimate extractedNRNo studies
Interventions targeting industrial sources vs practice
Respiratory mortality · General population, as well as age‐specific subgroups (< 1 year; < 14 years; > 65 years)
Interventions to reduce ambient particulate matter air pollution and their effect on health (2019) · Cochrane
no estimate extractedNRNo studies
Interventions targeting industrial sources vs practice
Coarse particulate matter · General population, as well as age‐specific subgroups (< 1 year; < 14 years; > 65 years)
Interventions to reduce ambient particulate matter air pollution and their effect on health (2019) · Cochrane
no estimate extractedNRNo studies