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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)

612 questions in 46 reviews · Work

current versions
No studies 78 · 12.7%Ungraded 4 · 0.7%Very low 295 · 48.2%Low 182 · 29.7%Moderate 49 · 8%High 4 · 0.7%

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
Dry skin Cross‐over studies (cluster non‐RCT) after 6 ‐ 12 weeks · Adults
Humidification of indoor air for preventing or reducing dryness symptoms or upper respiratory infections in… (2021) · Cochrane
OR 0.66 [0.33, 1.32]407 participantsLow
Intervention NR
Dry skin Before‐and‐after Studies after 12 weeks to 4 months · Adults
Humidification of indoor air for preventing or reducing dryness symptoms or upper respiratory infections in… (2021) · Cochrane
OR 0.69 [0.33, 1.47]121 participantsVery low
Intervention NR
Dry nose (dry upper respiratory tract) Cross‐over study (cluster non‐RCT) after 6 weeks · Adults
Humidification of indoor air for preventing or reducing dryness symptoms or upper respiratory infections in… (2021) · Cochrane
OR 0.87 [0.53, 1.42]368 participantsLow
Intervention NR
Dry nose (dry upper respiratory tract) Cross‐over study (cluster‐RCT) after 6 weeks · Adults
Humidification of indoor air for preventing or reducing dryness symptoms or upper respiratory infections in… (2021) · Cochrane
OR 1.08 [0.73, 1.6]1 study · 211 participantsLow
Intervention NR
Perception of stuffiness: Cross‐over study (cluster‐RCT) after 6 weeks · Adults
Humidification of indoor air for preventing or reducing dryness symptoms or upper respiratory infections in… (2021) · Cochrane
OR 2.18 [1.47, 3.23]211 participantsLow
Work‐directed plus clinical intervention vs care
Sickness absence days
Interventions to improve return to work in depressed people (2020) · Cochrane
no estimate extracted9 studies · 1292 participantsModerate
Psychological intervention vs care
Depressive symptoms, medium‐term · Depressed persons
Interventions to improve return to work in depressed people (2020) · Cochrane
no estimate extracted8 studies · 1255 participantsLow
Psychological intervention vs care
Work ability, medium‐term · Depressed persons
Interventions to improve return to work in depressed people (2020) · Cochrane
no estimate extracted1 study · 58 participantsVery low
Improved care vs care
Sickness absence days, medium‐term · Depressed persons
Interventions to improve return to work in depressed people (2020) · Cochrane
no estimate extracted7 studies · 1912 participantsModerate
Improved care vs care
Off work, medium‐term · Depressed persons
Interventions to improve return to work in depressed people (2020) · Cochrane
RR 0.97 [0.77, 1.22]1 study · 362 participantsLow
Improved care vs care
Depressive symptoms, medium‐term · Depressed persons
Interventions to improve return to work in depressed people (2020) · Cochrane
no estimate extracted7 studies · 1808 participantsModerate
Improved care vs care
Work functioning, medium‐term · Depressed persons
Interventions to improve return to work in depressed people (2020) · Cochrane
no estimate extracted1 study · 604 participantsModerate
Work‐directed plus clinical intervention vs care
On sick leave
Interventions to improve return to work in depressed people (2020) · Cochrane
RR 1.08 [0.64, 1.83]2 studies · 1025 participantsHigh
Work‐directed plus clinical intervention vs care
Depressive symptoms‐
Interventions to improve return to work in depressed people (2020) · Cochrane
no estimate extracted8 studies · 1091 participantsLow
Work‐directed plus clinical intervention vs care
Work functioning
Interventions to improve return to work in depressed people (2020) · Cochrane
no estimate extracted5 studies · 926 participantsLow
Work‐directed intervention vs care
Sickness absence days, medium‐term · Depressed persons
Interventions to improve return to work in depressed people (2020) · Cochrane
no estimate extracted2 studies · 130 participantsLow
Work‐directed intervention vs care
Off work, medium‐term · Depressed persons
Interventions to improve return to work in depressed people (2020) · Cochrane
RR 0.93 [0.77, 1.11]1 study · 226 participantsModerate
Work‐directed intervention vs care
Depressive symptoms, medium‐term · Depressed persons
Interventions to improve return to work in depressed people (2020) · Cochrane
no estimate extracted4 studies · 390 participantsModerate
Work‐directed intervention vs care
Work functioning, medium‐term · Depressed persons
Interventions to improve return to work in depressed people (2020) · Cochrane
no estimate extracted1 study · 48 participantsLow
Psychological intervention vs care
Sickness absence days, medium‐term · Depressed persons
Interventions to improve return to work in depressed people (2020) · Cochrane
no estimate extracted9 studies · 1649 participantsLow
Pedometer intervention vs minimal intervention
Physical activity · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
no estimate extracted6 studies · 724 participantsVery low
Pedometer intervention vs alternative physical activity intervention
CVD risk factor: body mass index (BMI)At completion of interventionf · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
no estimate extracted2 studies · 144 participantsVery low
Pedometer intervention vs alternative physical activity intervention
CVD risk factor: systolic blood pressure (SBP) At completion of interventionf · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
no estimate extracted1 study · 94 participantsVery low
Pedometer intervention vs alternative physical activity intervention
CVD risk factor: LDL cholesterol At completion of interventionf · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
no estimate extracted1 study · 94 participantsVery low
Pedometer intervention vs alternative physical activity intervention
Quality of life (QoL) ‐ not reported · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
no estimate extractedNRNo studies
Pedometer intervention vs alternative physical activity intervention
Adverse effects ‐ not measured · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
no estimate extractedNRNo studies
Pedometer intervention vs minimal intervention
Sedentary behaviour · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
no estimate extracted1 study · 172 participantsVery low
Pedometer intervention vs minimal intervention
CVD risk factor: body mass index (BMI) · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
no estimate extracted3 studies · 486 participantsLow
Pedometer intervention vs minimal intervention
CVD risk factor: systolic blood pressure (SBP) · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
no estimate extracted2 studies · 315 participantsModerate
Pedometer intervention vs minimal intervention
CVD risk factor: LDL cholesterolAt completion of interventionm · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
no estimate extracted2 studies · 127 participantsVery low
Pedometer intervention vs minimal intervention
Quality of life: mental health component (QoL) · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
no estimate extracted1 study · 58 participantsVery low
Pedometer intervention vs minimal intervention
Adverse effects · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
OR 0.5 [0.3, 0.84]2 studies · 286 participantsLow
Pedometer intervention vs alternative physical activity intervention
Physical activity · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
no estimate extracted1 study · 143 participantsVery low
Pedometer intervention vs alternative physical activity intervention
Sedentary time · employees
Workplace pedometer interventions for increasing physical activity (2020) · Cochrane
no estimate extracted1 study · 62 participantsVery low
Personal protective equipment (PPE) types: powered, air‐purifying respirator (PAPR) plus coverall vs N95 mask plus gown
Any contamination: fluorescent marker · healthcare staff volunteers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
RR 0.27 [0.17, 0.43]50 participantsVery low
Personal protective equipment (PPE) types: more protective vs less protective
Compliance with guidance · healthcare worker volunteers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Personal protective equipment (PPE) types: gowns vs aprons
Contamination with marker: individual type of doffing · healthcare worker volunteers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
no estimate extracted1 study · 50 participantsVery low
Personal protective equipment (PPE) types: gowns vs aprons
Contamination with marker: CDC‐recommended doffing · healthcare worker volunteers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
no estimate extracted1 study · 50 participantsVery low
Personal protective equipment (PPE) types: gowns vs aprons
Compliance with guidance · healthcare worker volunteers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Intervention NR
Any contamination · healthcare workers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
no estimate extracted1 study · 59 participantsVery low
Intervention NR
Compliance · healthcare workers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
no estimate extracted1 study · 59 participantsVery low
Modified personal protective equipment (PPE): sealed gown‐glove interface vs standard gown
Contamination: fluorescent lotion · healthcare workers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
RR 0.27 [0.09, 0.78]1 study · 30 participantsVery low
Modified personal protective equipment (PPE): sealed gown‐glove interface vs standard gown
Contamination: MS2 · healthcare workers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
RR 0.68 [0.47, 0.98]1 study · 30 participantsVery low
Modified personal protective equipment (PPE): gown ‐ easy to doff vs standard gown
Contamination: fluorescent marker · healthcare workers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
RR 0.08 [0.01, 0.55]1 study · 62 participantsLow
Modified personal protective equipment (PPE): gown ‐ easy to doff vs standard gown
Contamination: bacteriophage · healthcare workers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
RR 0.53 [0.29, 0.94]1 study · 62 participantsLow
Personal protective equipment (PPE) types: powered, air‐purifying respirator (PAPR) plus coverall vs N95 mask plus gown
Compliance: noncompliance with donning guidance · healthcare staff volunteers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
RR 7.5 [1.81, 31.1]50 participantsVery low
Modified personal protective equipment (PPE): gown with gown‐glove improvement vs standard gown and gloves
People with contamination · healthcare workers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
RR 0.45 [0.26, 0.78]2 studies · 50 participantsLow
Modified personal protective equipment (PPE): gloves with tab vs standard gloves
Any contamination of hands · healthcare workers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
RR 0.22 [0.15, 0.31]1 study · 317 participantsVery low
Modified personal protective equipment (PPE): mask plus tabs vs standard masks
Contamination of mask from hands · healthcare workers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
RR 0.33 [0.14, 0.8]1 study · 20 participantsVery low
Modified personal protective equipment (PPE): mask plus tabs vs standard masks
Contamination of head from hands · healthcare workers
Personal protective equipment for preventing highly infectious diseases due to exposure to contaminated body… (2020) · Cochrane
RR 0.96 [0.83, 1.12]1 study · 20 participantsVery low