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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)

1,521 questions in 132 reviews · Hepato-Biliary

current versions
No studies 303 · 19.9%Ungraded 39 · 2.6%Very low 876 · 57.6%Low 216 · 14.2%Moderate 65 · 4.3%High 22 · 1.4%

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
Failure of sustained virological response Absence of clearance of HCV RNA from the blood 6 months after treatment · patients with chronic hepatitis C
Aminoadamantanes for chronic hepatitis C (2014) · Cochrane
RR 0.98 [0.95, 1.02]35 studies · 5582 participantsModerate
Intervention NR
Quality of life Different QoL scales · patients with chronic hepatitis C
Aminoadamantanes for chronic hepatitis C (2014) · Cochrane
no estimate extracted6 studies · 1181 participantsVery low
Intervention NR
Failure of normalisation of ALT at end of treatment · patients with chronic hepatitis C
Aminoadamantanes for chronic hepatitis C (2014) · Cochrane
RR 0.88 [0.83, 0.94]19 studies · 2241 participantsLow
Intervention NR
Failure of normalisation of ALT at end of · patients with chronic hepatitis C
Aminoadamantanes for chronic hepatitis C (2014) · Cochrane
RR 0.95 [0.91, 1]21 studies · 3744 participantsLow
T‐cell antibody induction vs corticosteroid induction
Mortality Mortality at latest · liver transplant recipients.
Antibody induction versus corticosteroid induction for liver transplant recipients (2014) · Cochrane
RR 1.01 [0.72, 1.43]10 studies · 1589 participantsLow
T‐cell antibody induction vs corticosteroid induction
Graft loss Graft loss (including death with a functioning graft) at latest · liver transplant recipients.
Antibody induction versus corticosteroid induction for liver transplant recipients (2014) · Cochrane
RR 1.12 [0.82, 1.53]10 studies · 1589 participantsLow
T‐cell antibody induction vs corticosteroid induction
Acute rejection Number of participants who experienced at least 1 episode of rejection · liver transplant recipients.
Antibody induction versus corticosteroid induction for liver transplant recipients (2014) · Cochrane
RR 0.84 [0.7, 1]10 studies · 1589 participantsLow
T‐cell antibody induction vs corticosteroid induction
Infection Number of participants who experienced at least 1 episode of infection · liver transplant recipients.
Antibody induction versus corticosteroid induction for liver transplant recipients (2014) · Cochrane
RR 0.88 [0.71, 1.08]5 studies · 1164 participantsLow
T‐cell antibody induction vs corticosteroid induction
Cytomegalovirus infection Number of participants who experienced at least 1 episode of CMV infection · liver transplant recipients.
Antibody induction versus corticosteroid induction for liver transplant recipients (2014) · Cochrane
RR 0.5 [0.33, 0.75]5 studies · 1164 participantsLow
T‐cell antibody induction vs corticosteroid induction
Hepatitis C recurrence Number of participants diagnosed with hepatitis C virus recurrence · liver transplant recipients.
Antibody induction versus corticosteroid induction for liver transplant recipients (2014) · Cochrane
RR 0.89 [0.79, 1]6 studies · 522 participantsLow
T‐cell antibody induction vs corticosteroid induction
Malignancy Number of participants diagnosed with a malignancy · liver transplant recipients.
Antibody induction versus corticosteroid induction for liver transplant recipients (2014) · Cochrane
RR 0.59 [0.13, 2.73]6 studies · 1210 participantsLow
T‐cell antibody induction vs corticosteroid induction
Diabetes mellitus Number of participants with new‐onset diabetes mellitus · liver transplant recipients.
Antibody induction versus corticosteroid induction for liver transplant recipients (2014) · Cochrane
RR 0.45 [0.34, 0.6]10 studies · 1579 participantsLow
T‐cell antibody induction vs placebo/no intervention
Mortality Mortality at latest · liver transplant recipients
Antibody induction versus placebo, no induction, or another type of antibody induction for liver transplant… (2014) · Cochrane
RR 0.9116 studies · 1853 participantsLow
T‐cell antibody induction vs placebo/no intervention
Graft loss including death Graft loss including death at latest · liver transplant recipients
Antibody induction versus placebo, no induction, or another type of antibody induction for liver transplant… (2014) · Cochrane
RR 0.9214 studies · 1749 participantsLow
T‐cell antibody induction vs placebo/no intervention
Acute rejection Number of participants who experienced at least 1 episode with acute rejection at latest · liver transplant recipients
Antibody induction versus placebo, no induction, or another type of antibody induction for liver transplant… (2014) · Cochrane
RR 0.8516 studies · 1918 participantsModerate
Supplementary box model training vs standard training
Mortality · surgical trainees with limited prior laparoscopic experience
Laparoscopic surgical box model training for surgical trainees with limited prior laparoscopic experience (2014) · Cochrane
no estimate extracted3 studies · 168 participantsVery low
Supplementary box model training vs standard training
Morbidity · surgical trainees with limited prior laparoscopic experience
Laparoscopic surgical box model training for surgical trainees with limited prior laparoscopic experience (2014) · Cochrane
no estimate extracted3 studies · 168 participantsVery low
Supplementary box model training vs standard training
Operating time · surgical trainees with limited prior laparoscopic experience
Laparoscopic surgical box model training for surgical trainees with limited prior laparoscopic experience (2014) · Cochrane
no estimate extracted1 study · 50 participantsLow
Supplementary box model training vs standard training
Proportion with day surgery · surgical trainees with limited prior laparoscopic experience
Laparoscopic surgical box model training for surgical trainees with limited prior laparoscopic experience (2014) · Cochrane
no estimate extracted1 study · 50 participantsLow
Supplementary box model training vs standard training
Operating performance · surgical trainees with limited prior laparoscopic experience
Laparoscopic surgical box model training for surgical trainees with limited prior laparoscopic experience (2014) · Cochrane
no estimate extracted7 studies · 249 participantsVery low
Box model training vs no training or standard surgical training
Time taken for task completion (seconds) · trainees with no prior laparoscopic experience.
Laparoscopic surgical box model training for surgical trainees with no prior laparoscopic experience (2014) · Cochrane
no estimate extracted7 studies · 229 participantsVery low
Box model training vs no training or standard surgical training
Error score · trainees with no prior laparoscopic experience.
Laparoscopic surgical box model training for surgical trainees with no prior laparoscopic experience (2014) · Cochrane
no estimate extracted3 studies · 69 participantsVery low
Box model training vs no training or standard surgical training
Accuracy score · trainees with no prior laparoscopic experience.
Laparoscopic surgical box model training for surgical trainees with no prior laparoscopic experience (2014) · Cochrane
no estimate extracted3 studies · 73 participantsVery low
Box model training vs no training or standard surgical training
Composite score · trainees with no prior laparoscopic experience.
Laparoscopic surgical box model training for surgical trainees with no prior laparoscopic experience (2014) · Cochrane
no estimate extracted9 studies · 321 participantsVery low
Intervention NR
All‐cause mortality or liver‐related morbidity · patients with chronic hepatitis C.
Aminoadamantanes versus other antiviral drugs for chronic hepatitis C (2014) · Cochrane
RR 0.98 [0, 248.89]4 studies · 427 participantsVery low
Intervention NR
Adverse events · patients with chronic hepatitis C.
Aminoadamantanes versus other antiviral drugs for chronic hepatitis C (2014) · Cochrane
RR 0.56 [0.27, 1.16]4 studies · 427 participantsVery low
Intervention NR
Failure of sustained virological response Absence of clearance of HCV RNA from the blood 6 months after treatment · patients with chronic hepatitis C.
Aminoadamantanes versus other antiviral drugs for chronic hepatitis C (2014) · Cochrane
RR 1.14 [1.07, 1.22]4 studies · 427 participantsLow
Intervention NR
Failure of end of treatment virological response Absence of clearance of HCV RNA from the blood at end of treatment · patients with chronic hepatitis C.
Aminoadamantanes versus other antiviral drugs for chronic hepatitis C (2014) · Cochrane
RR 1.2 [1.05, 1.36]3 studies · 309 participantsLow
Intervention NR
Failure of normalisation of ALT at end of treatment · patients with chronic hepatitis C.
Aminoadamantanes versus other antiviral drugs for chronic hepatitis C (2014) · Cochrane
RR 2.02 [1.07, 3.82]1 study · 29 participantsVery low
Intervention NR
Failure of normalisation of ALT at end of · patients with chronic hepatitis C.
Aminoadamantanes versus other antiviral drugs for chronic hepatitis C (2014) · Cochrane
RR 1.31 [1.05, 1.63]2 studies · 92 participantsVery low
Hepatic resection vs radiofrequency ablation
Overall survival · 578 patients with early HCC
Radiofrequency (thermal) ablation versus no intervention or other interventions for hepatocellular carcinoma (2013) · Cochrane
no estimate extracted3 studies · 578 participantsModerate
Percutaneous ethanol injection vs radiofrequency ablation
Local progression · 1088 patients with early HCC
Radiofrequency (thermal) ablation versus no intervention or other interventions for hepatocellular carcinoma (2013) · Cochrane
no estimate extracted4 studies · 678 participantsModerate
Percutaneous ethanol injection vs radiofrequency ablation
Rate of complications · 1088 patients with early HCC
Radiofrequency (thermal) ablation versus no intervention or other interventions for hepatocellular carcinoma (2013) · Cochrane
no estimate extracted6 studies · 1088 participantsModerate
Percutaneous ethanol injection vs radiofrequency ablation
Length of hospital stay · 1088 patients with early HCC
Radiofrequency (thermal) ablation versus no intervention or other interventions for hepatocellular carcinoma (2013) · Cochrane
no estimate extracted3 studies · 576 participantsModerate
Hepatic resection vs radiofrequency ablation
2‐year survival‐ · 578 patients with early HCC
Radiofrequency (thermal) ablation versus no intervention or other interventions for hepatocellular carcinoma (2013) · Cochrane
no estimate extracted3 studies · 578 participantsModerate
Hepatic resection vs radiofrequency ablation
Event‐free survival · 578 patients with early HCC
Radiofrequency (thermal) ablation versus no intervention or other interventions for hepatocellular carcinoma (2013) · Cochrane
no estimate extracted3 studies · 578 participantsModerate
Hepatic resection vs radiofrequency ablation
Local progression · 578 patients with early HCC
Radiofrequency (thermal) ablation versus no intervention or other interventions for hepatocellular carcinoma (2013) · Cochrane
no estimate extracted1 study · 168 participantsLow
Hepatic resection vs radiofrequency ablation
Rate of complications · 578 patients with early HCC
Radiofrequency (thermal) ablation versus no intervention or other interventions for hepatocellular carcinoma (2013) · Cochrane
no estimate extracted3 studies · 578 participantsHigh
Hepatic resection vs radiofrequency ablation
Length of hospital stay (days) · 578 patients with early HCC
Radiofrequency (thermal) ablation versus no intervention or other interventions for hepatocellular carcinoma (2013) · Cochrane
no estimate extracted3 studies · 578 participantsHigh
Percutaneous ethanol injection vs radiofrequency ablation
Overall survival · 1088 patients with early HCC
Radiofrequency (thermal) ablation versus no intervention or other interventions for hepatocellular carcinoma (2013) · Cochrane
no estimate extracted6 studies · 1088 participantsModerate
Percutaneous ethanol injection vs radiofrequency ablation
2‐year survival · 1088 patients with early HCC
Radiofrequency (thermal) ablation versus no intervention or other interventions for hepatocellular carcinoma (2013) · Cochrane
no estimate extracted4 studies · 715 participantsModerate
Percutaneous ethanol injection vs radiofrequency ablation
Event‐free survival · 1088 patients with early HCC
Radiofrequency (thermal) ablation versus no intervention or other interventions for hepatocellular carcinoma (2013) · Cochrane
no estimate extracted5 studies · 949 participantsModerate
Open surgery vs ERCP
Mortality · with common bile duct stones
Surgical versus endoscopic treatment of bile duct stones (2013) · Cochrane
no estimate extracted8 studies · 733 participantsModerate
LC + LCBDE vs LC + post‐operative ERCP
Total morbidity · with common bile duct stones
Surgical versus endoscopic treatment of bile duct stones (2013) · Cochrane
OR 1.16 [0.5, 2.72]2 studies · 166 participantsModerate
LC + LCBDE vs LC + post‐operative ERCP
Failure of procedure · with common bile duct stones
Surgical versus endoscopic treatment of bile duct stones (2013) · Cochrane
OR 0.47 [0.21, 1.06]2 studies · 166 participantsModerate
LC + LCBDE vs LC + post‐operative ERCP
Retained stones after primary intervention · with common bile duct stones
Surgical versus endoscopic treatment of bile duct stones (2013) · Cochrane
OR 0.28 [0.11, 0.72]2 studies · 166 participantsModerate
LC + LCBDE vs LC + post‐operative ERCP
Conversion to open surgery · with common bile duct stones
Surgical versus endoscopic treatment of bile duct stones (2013) · Cochrane
OR 1.77 [0.23, 13.81]2 studies · 166 participantsModerate
Open surgery vs ERCP
Total morbidity · with common bile duct stones
Surgical versus endoscopic treatment of bile duct stones (2013) · Cochrane
OR 1.12 [0.77, 1.62]8 studies · 729 participantsModerate
Open surgery vs ERCP
Failure of procedure · with common bile duct stones
Surgical versus endoscopic treatment of bile duct stones (2013) · Cochrane
OR 0.32 [0.21, 0.48]7 studies · 943 participantsModerate
Open surgery vs ERCP
Retained stones after primary intervention · with common bile duct stones
Surgical versus endoscopic treatment of bile duct stones (2013) · Cochrane
OR 0.36 [0.23, 0.57]7 studies · 943 participantsModerate