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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)

15,213 questions in 2,394 reviews

current versions
No studies 15,213 · 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
Recombinant human adenovirus‐p53 and 5‐fluorouracil (rAd‐p53/5‐Fu) plus transarterial chemoembolisation vs transarterial chemoembolisation
Adverse events considered non‐serious (number of events) · participants with unresectable hepatocellular carcinoma
Gene therapy for people with hepatocellular carcinoma (2024) · Cochrane
no estimate extractedNRNo studies
E1B‐deleted (dl1520) adenovirus vs percutaneous ethanol injection
Overall survival · participants with unresectable hepatocellular carcinoma
Gene therapy for people with hepatocellular carcinoma (2024) · Cochrane
no estimate extractedNRNo studies
E1B‐deleted (dl1520) adenovirus vs percutaneous ethanol injection
Proportion of people with ≥ 1 serious adverse events · participants with unresectable hepatocellular carcinoma
Gene therapy for people with hepatocellular carcinoma (2024) · Cochrane
no estimate extractedNRNo studies
E1B‐deleted (dl1520) adenovirus vs percutaneous ethanol injection
Health‐related quality of life · participants with unresectable hepatocellular carcinoma
Gene therapy for people with hepatocellular carcinoma (2024) · Cochrane
no estimate extractedNRNo studies
Adenovirus‐thymidine kinase with ganciclovir (ADV‐TK/GCV) plus liver transplantation vs liver transplantation
Proportion of people with ≥ 1 serious adverse events during treatment · participants with unresectable hepatocellular carcinoma
Gene therapy for people with hepatocellular carcinoma (2024) · Cochrane
no estimate extractedNRNo studies
Adenovirus‐thymidine kinase with ganciclovir (ADV‐TK/GCV) plus liver transplantation vs liver transplantation
Health‐related quality of life · participants with unresectable hepatocellular carcinoma
Gene therapy for people with hepatocellular carcinoma (2024) · Cochrane
no estimate extractedNRNo studies
Adenovirus‐thymidine kinase with ganciclovir (ADV‐TK/GCV) plus liver transplantation vs liver transplantation
Proportion of people with disease progression · participants with unresectable hepatocellular carcinoma
Gene therapy for people with hepatocellular carcinoma (2024) · Cochrane
no estimate extractedNRNo studies
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 extractedNRNo studies
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 extractedNRNo 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 extractedNRNo studies
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 extractedNRNo 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 extractedNRNo studies
Multicomponent fall prevention interventions vs control: evidence from non‐randomised trials
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 extractedNRNo studies
Medication or nutrition fall prevention interventions vs control: evidence from RCTs
Number of people experiencing 1 or more fall‐related injuries · 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 extractedNRNo studies
Medication or nutrition fall prevention interventions vs control: evidence from RCTs
Number of people experiencing 1 or more fall‐related fractures · 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 extractedNRNo studies
Medication or nutrition fall prevention interventions vs control: evidence from RCTs
Number of people who experienced 1 or more adverse events · 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 extractedNRNo studies
Medication or nutrition fall prevention interventions vs control: evidence from RCTs
Economic analysis · 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 extractedNRNo studies
Shared decision‐making (all components) vs control
Satisfaction with the decision‐making process · women aged 40 to 75 years at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Some components of shared decision‐making, including clarification of values and preferences, vs control
Adherence to the chosen option · women aged 38 to 71 years at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Some components of shared decision‐making, including clarification of values and preferences, vs control
Choice of an option aligned with each woman’s values and preferences · women aged 38 to 71 years at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Some components of shared decision‐making, including clarification of values and preferences, vs control
Woman's involvement · women aged 38 to 71 years at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Studies focused only on enhanced communication, without clarification of values and preferences, vs control
Satisfaction with the decision‐making process · women aged 40 to 75 years old at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Studies focused only on enhanced communication, without clarification of values and preferences, vs control
Adherence to the chosen option · women aged 40 to 75 years old at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Studies focused only on enhanced communication, without clarification of values and preferences, vs control
Choice of an option aligned with each woman’s values and preferences · women aged 40 to 75 years old at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Shared decision‐making (all components) vs control
Confidence in the decision made · women aged 40 to 75 years at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Studies focused only on enhanced communication, without clarification of values and preferences, vs control
Woman's involvement · women aged 40 to 75 years old at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Shared decision‐making (all components) vs control
Adherence to the chosen option · women aged 40 to 75 years at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Shared decision‐making (all components) vs control
Choice of an option aligned with each woman’s values and preferences · women aged 40 to 75 years at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Shared decision‐making (all components) vs control
Woman's involvement · women aged 40 to 75 years at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Shared decision‐making (all components) vs control
Mental health outcomes · women aged 40 to 75 years at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Some components of shared decision‐making, including clarification of values and preferences, vs control
Satisfaction with the decision‐making process · women aged 38 to 71 years at average to moderate risk of breast cancer
Shared decision‐making for supporting women’s decisions about breast cancer screening (2024) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Vitamin B12 supplementation vs placebo/no vitamin B12 supplementation
Neural tube defects ‐ not reported · pregnant women
Vitamin B12 supplementation during pregnancy for maternal and child health outcomes (2024) · Cochrane
no estimate extractedNRNo studies
Intrauterine infusion of autologous platelet‐rich plasma vs intrauterine infusion of granulocyte colony‐stimulating factor
Adverse events · women undergoing assisted reproduction
Autologous platelet‐rich plasma for assisted reproduction (2024) · Cochrane
no estimate extractedNRNo studies
Intraovarian injection of autologous platelet‐rich plasma vs no intervention
Miscarriage · women undergoing assisted reproduction
Autologous platelet‐rich plasma for assisted reproduction (2024) · Cochrane
no estimate extractedNRNo studies
Intraovarian injection of autologous platelet‐rich plasma vs no intervention
Adverse events · women undergoing assisted reproduction
Autologous platelet‐rich plasma for assisted reproduction (2024) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Psychosocial intervention vs control
Functioning at · promoting the mental health of people living in LMICs affected by humanitarian crises (adults)
Psychological and social interventions for the promotion of mental health in people living in low‐ and… (2024) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Psychosocial intervention vs control
Prosocial behaviour at study endpoint ‐ not measured · promoting the mental health of people living in LMICs affected by humanitarian crises (adults)
Psychological and social interventions for the promotion of mental health in people living in low‐ and… (2024) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Psychosocial intervention vs control
Prosocial behaviour at · promoting the mental health of people living in LMICs affected by humanitarian crises (adults)
Psychological and social interventions for the promotion of mental health in people living in low‐ and… (2024) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Psychosocial intervention vs control
Functioning at study endpoint ‐ not measured · promoting the mental health of people living in LMICs affected by humanitarian crises (adults)
Psychological and social interventions for the promotion of mental health in people living in low‐ and… (2024) · Cochrane
no estimate extractedNRNo studies
Summary of findings: plantar‐incision neurectomy (PN) vs dorsal‐incision neurectomy (DN)
Pain: VAS(0 to 100; lower score indicates less pain) · Morton's neuroma
Treatments for Morton's neuroma (2024) · Cochrane
no estimate extractedNRNo studies
Summary of findings: plantar‐incision neurectomy (PN) vs dorsal‐incision neurectomy (DN)
Function: restrictions in daily activities (4‐item Likert scale) · Morton's neuroma
Treatments for Morton's neuroma (2024) · Cochrane
no estimate extractedNRNo studies
Summary of findings: plantar‐incision neurectomy (PN) vs dorsal‐incision neurectomy (DN)
HRQoL · Morton's neuroma
Treatments for Morton's neuroma (2024) · Cochrane
no estimate extractedNRNo studies
Summary of findings: ultrasound‐guided injection of corticosteroid and local anaesthetic (UG CS+LA) vs non‐ultrasound‐guided injection of corticosteroid and local anaesthetic (NUG CS+LA)
HRQoL · Morton's neuroma
Treatments for Morton's neuroma (2024) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Change in claudication distance from baseline (m) · people with intermittent claudication
Mobile health technologies to improve walking distance in people with intermittent claudication (2024) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Amputation‐free survival · people with intermittent claudication
Mobile health technologies to improve walking distance in people with intermittent claudication (2024) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Revascularisation‐free survival · people with intermittent claudication
Mobile health technologies to improve walking distance in people with intermittent claudication (2024) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Major adverse limb events (MALE) · people with intermittent claudication
Mobile health technologies to improve walking distance in people with intermittent claudication (2024) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Above‐ankle amputation · people with intermittent claudication
Mobile health technologies to improve walking distance in people with intermittent claudication (2024) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Continuous infusion of intravenous loop diuretics vs bolus injection of intravenous loop diuretics
Cardiovascular mortality ‐ not measured · adults (aged greater than 18 years) with acute heart failure
Continuous infusion versus bolus injection of loop diuretics for acute heart failure (2024) · Cochrane
no estimate extractedNRNo studies
Zinc vs placebo
Risk of serious adverse events, including those that may be complications of the common cold · adults and children with colds and/or upper respiratory infections
Zinc for prevention and treatment of the common cold (2024) · Cochrane
no estimate extractedNRNo studies