Cochrane Review Group

Public Health

55 systematic reviews in Public Health ask 780 questions. 20.8% have no studies to answer them, 29.6% rest on very low certainty evidence and 18.4% reach moderate or high certainty.

Reviews

Questions

780

current versions

No studies

20.8%

Moderate or high

18.4%

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.

Search questions in Public Health

Thinnest evidence

All no studies and very low questions

Question	Effect	Evidence	Status / GRADE
Medication or nutrition fall prevention interventions vs control: evidence from RCTs Rate of falls · community‐dwelling older adults ≥ 65 years of age Population‐based interventions for preventing falls and fall‐related injuries in older people (2024) · Cochrane	no estimate extracted	NR	No studies
Multicomponent fall prevention interventions vs control: evidence from RCTs Number of people experiencing 1 or more fall‐related injuries Measured using questionnaire data (self‐reported) · community‐dwelling older adults at least 60 years of age Population‐based interventions for preventing falls and fall‐related injuries in older people (2024) · Cochrane	no estimate extracted	1422 participants	Very low
Multicomponent fall prevention interventions vs control: evidence from RCTs Number of people experiencing 1 or more fall‐related fractures Measured using questionnaire data (self‐reported) · community‐dwelling older adults at least 60 years of age Population‐based interventions for preventing falls and fall‐related injuries in older people (2024) · Cochrane	no estimate extracted	1422 participants	Very low
Multicomponent fall prevention interventions vs control: evidence from RCTs Number of people experiencing 1 or more falls resulting in hospital admission Measured using hospital records · community‐dwelling older adults at least 60 years of age Population‐based interventions for preventing falls and fall‐related injuries in older people (2024) · Cochrane	no estimate extracted	7179 participants	Very low
Multicomponent fall prevention interventions vs control: evidence from RCTs Adverse events · community‐dwelling older adults at least 60 years of age Population‐based interventions for preventing falls and fall‐related injuries in older people (2024) · Cochrane	no estimate extracted	NR	No studies
Multicomponent fall prevention interventions vs control: evidence from RCTs Cost‐effectiveness (economic analysis) · community‐dwelling older adults at least 60 years of age Population‐based interventions for preventing falls and fall‐related injuries in older people (2024) · Cochrane	no estimate extracted	NR	No studies
Multicomponent fall prevention interventions vs control: evidence from non‐randomised trials Rate of falls Measured using questionnaire data (self‐reported) or hospital records · community‐dwelling older adults at least 60 years of age Population‐based interventions for preventing falls and fall‐related injuries in older people (2024) · Cochrane	no estimate extracted	4197 participants	Very low
Multicomponent fall prevention interventions vs control: evidence from non‐randomised trials Number of fallers Measured using questionnaire data (self‐reported) · community‐dwelling older adults at least 60 years of age Population‐based interventions for preventing falls and fall‐related injuries in older people (2024) · Cochrane	no estimate extracted	3047 participants	Very low
Multicomponent fall prevention interventions vs control: evidence from non‐randomised trials Number of people experiencing 1 or more fall‐related injuries Measured using healthcare centre records · community‐dwelling older adults at least 60 years of age Population‐based interventions for preventing falls and fall‐related injuries in older people (2024) · Cochrane	no estimate extracted	67300 participants	Very low
Multicomponent fall prevention interventions vs control: evidence from non‐randomised trials Number of people experiencing 1 or more fall‐related fractures Measured using hospital injury record system · community‐dwelling older adults at least 60 years of age Population‐based interventions for preventing falls and fall‐related injuries in older people (2024) · Cochrane	no estimate extracted	24365 participants	Very low
Multicomponent fall prevention interventions vs control: evidence from non‐randomised trials Number of people experiencing 1 or more falls resulting in hospital admission Measured using hospital records · community‐dwelling older adults at least 60 years of age Population‐based interventions for preventing falls and fall‐related injuries in older people (2024) · Cochrane	no estimate extracted	NR	No studies
Medication or nutrition fall prevention interventions vs control: evidence from RCTs Number of fallers · community‐dwelling older adults ≥ 65 years of age Population‐based interventions for preventing falls and fall‐related injuries in older people (2024) · Cochrane	no estimate extracted	NR	No studies

Reviews 55

Video calls for reducing social isolation and loneliness in older people: a rapid review

Noone, C, McSharry, J, et al. · Cochrane Database of Systematic Reviews · 2020

Public Health

Thinnest evidence

Reviews 55

Video calls for reducing social isolation and loneliness in older people: a rapid review

Interventions for preventing obesity in children

Fortification of rice with vitamins and minerals for addressing micronutrient malnutrition

Fortification of staple foods with vitamin A for vitamin A deficiency

Iodine fortification of foods and condiments, other than salt, for preventing iodine deficiency disorders

Interventions to reduce ambient particulate matter air pollution and their effect on health

Food fortification with multiple micronutrients: impact on health outcomes in general population

Nutritional interventions for preventing stunting in children (birth to 59 months) living in urban slums in low‐ and middle‐income countries (LMIC)

Fortification of wheat and maize flour with folic acid for population health outcomes

Environmental interventions to reduce the consumption of sugar‐sweetened beverages and their effects on health

Altering the availability or proximity of food, alcohol, and tobacco products to change their selection and consumption

Nutritional labelling for healthier food or non‐alcoholic drink purchasing and consumption

Welfare‐to‐work interventions and their effects on the mental and physical health of lone parents and their children

Individual‐, family‐, and school‐level interventions targeting multiple risk behaviours in young people

Fortification of maize flour with iron for controlling anaemia and iron deficiency in populations

Strategies to improve the implementation of workplace‐based policies or practices targeting tobacco, alcohol, diet, physical activity and obesity

Later school start times for supporting the education, health, and well‐being of high school students

Targeted mass media interventions promoting healthy behaviours to reduce risk of non‐communicable diseases in adult, ethnic minorities

Interventions for promoting reintegration and reducing harmful behaviour and lifestyles in street‐connected children and young people

Community-based population-level interventions for promoting child oral health

Population‐level interventions in government jurisdictions for dietary sodium reduction

Interventions for preventing abuse in the elderly

Fortification of staple foods with zinc for improving zinc status and other health outcomes in the general population

Community wide interventions for increasing physical activity

Community coalition‐driven interventions to reduce health disparities among racial and ethnic minority populations