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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
Various interventions vs control
Opioids versus NSAIDs · people undergoing laparoscopic cholecystectomy
Pharmacological interventions for prevention or treatment of postoperative pain in people undergoing… (2014) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Mortality · people undergoing laparoscopic cholecystectomy
Methods of intraperitoneal local anaesthetic instillation for laparoscopic cholecystectomy (2014) · Cochrane
no estimate extracted1 study · 206 participantsVery low
Intervention NR
Morbidity · people undergoing laparoscopic cholecystectomy
Methods of intraperitoneal local anaesthetic instillation for laparoscopic cholecystectomy (2014) · Cochrane
no estimate extracted1 study · 206 participantsVery low
Intervention NR
Just after creation of pneumoperitoneum versus end of surgery · people undergoing laparoscopic cholecystectomy
Methods of intraperitoneal local anaesthetic instillation for laparoscopic cholecystectomy (2014) · Cochrane
RR 0.98 [0.65, 1.5]1 study · 33 participantsVery low
Intervention NR
Subdiaphragmatic instillation versus gallbladder bed instillation · people undergoing laparoscopic cholecystectomy
Methods of intraperitoneal local anaesthetic instillation for laparoscopic cholecystectomy (2014) · Cochrane
RR 1.56 [0.76, 3.19]1 study · 82 participantsVery low
Intervention NR
Hospital stay · people undergoing laparoscopic cholecystectomy
Methods of intraperitoneal local anaesthetic instillation for laparoscopic cholecystectomy (2014) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Bupivacaine versus lignocaine · people undergoing laparoscopic cholecystectomy
Methods of intraperitoneal local anaesthetic instillation for laparoscopic cholecystectomy (2014) · Cochrane
no estimate extracted1 study · 206 participantsVery low
Intervention NR
Aerosol versus liquid · people undergoing laparoscopic cholecystectomy
Methods of intraperitoneal local anaesthetic instillation for laparoscopic cholecystectomy (2014) · Cochrane
no estimate extracted1 study · 60 participantsVery low
Intervention NR
All‐cause mortality · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted1 study · 100 participantsVery low
Intervention NR
Morbidity · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Adverse events · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 1.83 [0.8, 4.19]1 study · 50 participantsVery low
Intervention NR
Failure of sustained virological response · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 0.84 [0.7, 1.01]1 study · 50 participantsLow
Intervention NR
Failure of virological end‐of‐treatment response · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 0.73 [0.56, 0.93]1 study · 50 participantsLow
Intervention NR
Participants without improvement in ALT and/or AST serum levels · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 0.9 [0.66, 1.23]1 study · 50 participantsLow
Intervention NR
All‐cause mortality · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Chronic hepatitis C‐related mortality · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Morbidity · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Adverse events · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 0.78 [0.33, 1.84]1 study · 112 participantsVery low
Intervention NR
Failure of sustained virological response · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 0.85 [0.72, 1]3 studies · 217 participantsLow
Intervention NR
Chronic hepatitis C‐related mortality · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted1 study · 100 participantsVery low
Intervention NR
Failure of virological end‐of‐treatment response · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 0.73 [0.6, 0.89]3 studies · 217 participantsLow
Intervention NR
Participants without improvement in ALT and/or AST serum levels · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
All‐cause mortality · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted1 study · 100 participantsVery low
Intervention NR
Chronic hepatitis C‐related mortality · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted1 study · 100 participantsVery low
Intervention NR
Morbidity · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Adverse events · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 1 [0.51, 1.96]2 studies · 181 participantsVery low
Intervention NR
Failure of sustained virological response · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 0.88 [0.65, 1.19]2 studies · 181 participantsLow
Intervention NR
Failure of virological end‐of‐treatment response · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 1.16 [0.78, 1.73]2 studies · 181 participantsVery low
Intervention NR
Participants without improvement in ALT and/or AST serum levels · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 1.24 [0.85, 1.8]2 studies · 181 participantsVery low
Intervention NR
All‐cause mortality · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Morbidity · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Chronic hepatitis C‐related mortality · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Morbidity · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Adverse events · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Failure of sustained virological response · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 0.79 [0.38, 1.62]1 study · 50 participantsVery low
Intervention NR
Failure of virological end‐of‐treatment response · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 0.54 [0.22, 1.36]1 study · 50 participantsVery low
Intervention NR
Participants without improvement in ALT and/or AST serum levels · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Adverse events · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 1.1 [0.71, 1.71]4 studies · 383 participantsVery low
Intervention NR
Failure of sustained virological response · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 0.85 [0.75, 0.97]7 studies · 498 participantsLow
Intervention NR
Failure of virological end‐of‐treatment response · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 0.81 [0.69, 0.96]7 studies · 498 participantsLow
Intervention NR
Participants without improvement in ALT and/or AST serum levels · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
RR 1.09 [0.84, 1.42]3 studies · 271 participantsVery low
Intervention NR
All‐cause mortality · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Chronic hepatitis C‐related mortality · people with chronic hepatitis C
Nitazoxanide for chronic hepatitis C (2014) · Cochrane
no estimate extracted0 participantsUngraded
Patient education vs no patient education
Patient knowledge · patients undergoing laparoscopic cholecystectomy.
Formal education of patients about to undergo laparoscopic cholecystectomy (2014) · Cochrane
no estimate extracted3 studies · 338 participantsVery low
Patient education vs no patient education
Patient satisfaction · patients undergoing laparoscopic cholecystectomy.
Formal education of patients about to undergo laparoscopic cholecystectomy (2014) · Cochrane
no estimate extracted2 studies · 305 participantsVery low
Patient education vs no patient education
Patient anxiety · patients undergoing laparoscopic cholecystectomy.
Formal education of patients about to undergo laparoscopic cholecystectomy (2014) · Cochrane
no estimate extracted1 study · 76 participantsVery low
Patient education with repeat‐back vs patient education without repeat‐back
Patient knowledge · patients undergoing laparoscopic cholecystectomy.
Formal education of patients about to undergo laparoscopic cholecystectomy (2014) · Cochrane
no estimate extracted1 study · 173 participantsVery low
Intervention NR
All‐cause mortality or liver‐related morbidity · patients with chronic hepatitis C
Aminoadamantanes for chronic hepatitis C (2014) · Cochrane
RR 0.9 [0.38, 2.17]32 studies · 4617 participantsVery low
Intervention NR
Adverse events · patients with chronic hepatitis C
Aminoadamantanes for chronic hepatitis C (2014) · Cochrane
RR 0.98 [0.84, 1.14]35 studies · 5646 participantsModerate
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 for chronic hepatitis C (2014) · Cochrane
RR 0.95 [0.9, 1]30 studies · 4861 participantsModerate