Gap finder

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. Every word you type has to appear somewhere in the question, and the closest matches are ranked first.

Limit to evidence status or GRADE (optional)

75,239 questions in 5,342 reviews

current versions
No studies 15,213 · 20.2%Ungraded 10,323 · 13.7%Very low 17,528 · 23.3%Low 17,951 · 23.9%Moderate 11,190 · 14.9%High 3,034 · 4%

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
EACA given intravenously · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extractedNRVery low
Intervention NR
Fibrin (topical) · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extractedNRVery low
Intervention NR
TXA given intravenously at a total dose of 1 g intraoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted1 participantsLow
Intervention NR
TXA given intravenously at a total dose of 1 g pre‐incision · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted1 participantsModerate
Intervention NR
TXA given intravenously at a total dose of 1 g pre‐incision, intraoperatively and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted1 participantsLow
Intervention NR
TXA given intravenously at a total dose of 2 g intraoperatively and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted2 participantsLow
Intervention NR
TXA given intravenously at a total dose of 2 g pre‐incision and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted2 participantsModerate
Intervention NR
TXA given intravenously at a total dose of 3 g intraoperatively and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted3 participantsModerate
Intervention NR
TXA given orally at a total dose of 3 g pre‐incision and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted3 participantsLow
Intervention NR
Total studies: 19 Total participants: 2395 · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted19 participantsUngraded
Intervention NR
TXA given intravenously and orally at a total dose of greater than 3 g intraoperatively and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted3 participantsLow
Intervention NR
TXA given intravenously and intra‐articularly at a total dose of 2 g pre‐incision and intraoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted2 participantsLow
Intervention NR
TXA given intravenously and intra‐articularly at a total dose of greater than 3 g pre‐incision, intraoperatively and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted3 participantsLow
Intervention NR
TXA given intravenously at a total dose of greater than 3 g intraoperatively and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted3 participantsLow
Intervention NR
TXA given intravenously and orally at a total dose of greater than 3 g pre‐incision and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted3 participantsLow
Intervention NR
TXA given intravenously at a total dose of 3 g intraoperatively and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted3 participantsLow
Intervention NR
TXA given intra‐articularly at a total dose of 2 g intraoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted2 participantsLow
Intervention NR
TXA given orally and intra‐articularly at a total dose of greater than 3 g pre‐incision, intraoperatively and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted3 participantsLow
Intervention NR
TXA given intravenously at a total dose of 2 g pre‐incision and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted2 participantsLow
Intervention NR
TXA given intravenously and orally at a total dose of greater than 3 g intraoperatively and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted3 participantsLow
Intervention NR
TXA given intravenously at a total dose of 1 g postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted1 participantsLow
Intervention NR
TXA given intravenously at a total dose of 2 g postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted2 participantsLow
Intervention NR
TXA given intravenously at a total dose of 2 g intraoperatively and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted2 participantsVery low
Intervention NR
Aprotinin given intravenously · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extractedNRVery low
Intervention NR
TXA given intra‐articularly at a total dose of 1 g intraoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted1 participantsLow
Intervention NR
TXA given intravenously at a total dose of 1 g pre‐incision · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted1 participantsLow
Intervention NR
TXA given intravenously at a total dose of 1 g pre‐incision and intraoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted1 participantsLow
Intervention NR
TXA given intravenously at a total dose of 1 g intraoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted1 participantsLow
Intervention NR
TXA given intravenously at a total dose of 2 g pre‐incision · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted2 participantsModerate
Intervention NR
TXA given intravenously and intra‐articularly at a total dose of 2 g intraoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted2 participantsModerate
Intervention NR
TXA given intravenously and orally at a total dose of greater than 3 g pre‐incision and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted3 participantsLow
Intervention NR
TXA given intravenously at a total dose of 1 g pre‐incision and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted1 participantsLow
Intervention NR
TXA given intravenously and intra‐articularly at a total dose of greater than 3 g pre‐incision, intraoperatively and postoperatively · individuals undergoing planned hip or knee replacement surgery Interventions: antifibrinolytics (tranexamic acid,…
Pharmacological interventions for the prevention of bleeding in people undergoing elective hip or knee… (2024) · Cochrane
no estimate extracted3 participantsLow
Summary of findings for the main comparison: comprehensive care programmes vs usual care
Child health, functioning, and quality of life Pediatric Quality of Life Inventory (PedsQL) · children with medical complexity
Comprehensive care programmes for children with medical complexity (2024) · Cochrane
no estimate extracted3 studies · 701 participantsLow
Summary of findings for the main comparison: comprehensive care programmes vs usual care
Parent health, functioning, and quality of life Patient‐Reported Outcomes Measurement Information System (PROMIS) (higher scores = more of the outcome of interest, which can mean improvement or deterioration depending on the outcome) · children with medical complexity
Comprehensive care programmes for children with medical complexity (2024) · Cochrane
no estimate extracted1 study · 207 participantsModerate
Summary of findings for the main comparison: comprehensive care programmes vs usual care
Child and family satisfaction with, and perceptions of, care and service delivery Family Experiences With Coordination of Care (FECC) survey (higher scores = better) Consumer Assessment of Healthcare Providers and Systems (CAHPS) (higher scores = ... · children with medical complexity
Comprehensive care programmes for children with medical complexity (2024) · Cochrane
no estimate extracted3 studies · 701 participantsLow
Summary of findings for the main comparison: comprehensive care programmes vs usual care
Number of healthcare encounters: ED visits ( · children with medical complexity
Comprehensive care programmes for children with medical complexity (2024) · Cochrane
no estimate extracted3 studies · 739 participantsModerate
Summary of findings for the main comparison: comprehensive care programmes vs usual care
Number of hospitalised days (hospital admissions) ( · children with medical complexity
Comprehensive care programmes for children with medical complexity (2024) · Cochrane
no estimate extracted3 studies · 739 participantsModerate
Summary of findings for the main comparison: comprehensive care programmes vs usual care
Costs to the healthcare system ( · children with medical complexity
Comprehensive care programmes for children with medical complexity (2024) · Cochrane
no estimate extracted3 studies · 739 participantsLow
Summary of findings for the main comparison: comprehensive care programmes vs usual care
Costs to the family · children with medical complexity
Comprehensive care programmes for children with medical complexity (2024) · Cochrane
no estimate extractedNRNo studies
Facilitated tucking / four‐handed care / gentle human touch vs standard care
Validated pain scales · neonates with mechanical ventilation
Non‐pharmacological interventions for the prevention of pain during endotracheal suctioning in ventilated… (2024) · Cochrane
no estimate extractedNRNo studies
Familiar odour (breast milk smell) vs standard care
Validated pain scores · neonates with mechanical ventilation
Non‐pharmacological interventions for the prevention of pain during endotracheal suctioning in ventilated… (2024) · Cochrane
no estimate extractedNRNo studies
Familiar odour (breast milk smell) vs standard care
PIPP during endotracheal suctioning Range of scale 0 to 21. Lower score = less pain · neonates with mechanical ventilation
Non‐pharmacological interventions for the prevention of pain during endotracheal suctioning in ventilated… (2024) · Cochrane
no estimate extracted1 study · 40 participantsLow
Familiar odour (breast milk smell) vs standard care
Physiological indicators · neonates with mechanical ventilation
Non‐pharmacological interventions for the prevention of pain during endotracheal suctioning in ventilated… (2024) · Cochrane
no estimate extractedNRNo studies
Familiar odour (breast milk smell) vs standard care
Heart rate · neonates with mechanical ventilation
Non‐pharmacological interventions for the prevention of pain during endotracheal suctioning in ventilated… (2024) · Cochrane
no estimate extracted1 study · 40 participantsLow
Familiar odour (breast milk smell) vs standard care
SaO 2 during endotracheal suctioning · neonates with mechanical ventilation
Non‐pharmacological interventions for the prevention of pain during endotracheal suctioning in ventilated… (2024) · Cochrane
no estimate extracted1 study · 40 participantsLow
Familiar odour (breast milk smell) vs standard care
Behavioural indicators · neonates with mechanical ventilation
Non‐pharmacological interventions for the prevention of pain during endotracheal suctioning in ventilated… (2024) · Cochrane
no estimate extractedNRNo studies
Familiar odour (breast milk smell) vs standard care
— · neonates with mechanical ventilation
Non‐pharmacological interventions for the prevention of pain during endotracheal suctioning in ventilated… (2024) · Cochrane
no estimate extractedNRNo studies
White noise vs standard care
Validated pain scores · neonates with mechanical ventilation
Non‐pharmacological interventions for the prevention of pain during endotracheal suctioning in ventilated… (2024) · Cochrane
no estimate extractedNRNo studies
White noise vs standard care
PIPP during endotracheal suctioning Range of scale 0 to 21 Lower score = less pain · neonates with mechanical ventilation
Non‐pharmacological interventions for the prevention of pain during endotracheal suctioning in ventilated… (2024) · Cochrane
no estimate extracted1 study · 40 participantsLow