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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
Parenteral nutrition plus branched‐chain‐amino‐acid‐enriched formula vs standard isotonic intravenous glucose solution
Mortality [within first 10 weeks after liver transplantation] · adult patients after liver transplantation.
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
OR 0.46 [0.01, 10.51]1 study · 20 participantsLow
Standard parenteral nutrition vs standard isotonic intravenous glucose solution
Length of stay after liver transplantation [days] · adult patients after liver transplantation
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
no estimate extracted1 study · 18 participantsLow
Standard parenteral nutrition vs standard isotonic intravenous glucose solution
Days on ventilator · adult patients after liver transplantation
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
no estimate extracted1 study · 18 participantsLow
Standard parenteral nutrition vs standard isotonic intravenous glucose solution
Length of hospital stay after liver transplantation [days] · adult patients after liver transplantation
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
no estimate extracted1 study · 18 participantsLow
Hepatic product (HepaticAid) vs diet only (without supplement)
Length of stay in hospital after liver transplantation · adult patients with malnutrition and encephalopathy before and after liver transplantation.
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
no estimate extracted1 study · 22 participantsVery low
Standard parenteral nutrition vs standard isotonic intravenous glucose solution
Mortality [within first 10 weeks after liver transplantation] · adult patients after liver transplantation
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
no estimate extracted1 study · 18 participantsLow
Parenteral nutrition with omega‐3 fish oil vs standard parenteral nutrition
Length of hospital stay after liver transplantation (days) · adult patients after liver transplantation
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
no estimate extracted1 study · 36 participantsVery low
Parenteral nutrition with omega‐3 fish oil vs standard parenteral nutrition
Length of stay in intensive care unit after liver transplantation (days) · adult patients after liver transplantation
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
no estimate extracted1 study · 36 participantsVery low
Parenteral nutrition with omega‐3 fish oil vs standard parenteral nutrition
Acute rejection episodes · adult patients after liver transplantation
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
OR 1 [0.17, 5.77]1 study · 36 participantsVery low
Parenteral nutrition with omega‐3 fish oil vs standard parenteral nutrition
Mortality · adult patients after liver transplantation
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
no estimate extracted1 study · 36 participantsVery low
Hepatic product (HepaticAid) vs diet only (without supplement)
Hepatic encephalopathy related hospitalisation · adult patients with malnutrition and encephalopathy before and after liver transplantation.
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
no estimate extracted1 study · 15 participantsVery low
Hepatic product (HepaticAid) vs diet only (without supplement)
Changes in grade of hepatic encephalopathy [grade 0‐4] · adult patients with malnutrition and encephalopathy before and after liver transplantation.
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
no estimate extracted1 study · 15 participantsVery low
Standard casein product (Ensure) vs diet only (without supplement)
Re‐hospitalisation post liver transplantation [event per patient] · adult patients with malnutrition and encephalopathy before and after liver transplantation.
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
no estimate extracted1 study · 24 participantsVery low
Standard casein product (Ensure) vs diet only (without supplement)
Infections [event per patient] · adult patients with malnutrition and encephalopathy before and after liver transplantation.
Nutritional interventions for liver‐transplanted patients (2012) · Cochrane
no estimate extracted1 study · 24 participantsVery low
Extended peginterferon plus ribavirin treatment for 72 weeks vs standard peginterferon plus ribavirin treatment
Sustained virological response (SVR) · participants with detectable HCV RNA after 12 weeks of treatment with pegylated interferon and ribavirin, but with >=…
Extended peginterferon plus ribavirin treatment for 72 weeks versus standard peginterferon plus ribavirin… (2012) · Cochrane
RR 1.435 studies · 411 participantsVery low
Extended peginterferon plus ribavirin treatment for 72 weeks vs standard peginterferon plus ribavirin treatment
Relapse · participants with detectable HCV RNA after 12 weeks of treatment with pegylated interferon and ribavirin, but with >=…
Extended peginterferon plus ribavirin treatment for 72 weeks versus standard peginterferon plus ribavirin… (2012) · Cochrane
RR 0.593 studies · 175 participantsVery low
Extended peginterferon plus ribavirin treatment for 72 weeks vs standard peginterferon plus ribavirin treatment
End of treatment response (ETR) · participants with detectable HCV RNA after 12 weeks of treatment with pegylated interferon and ribavirin, but with >=…
Extended peginterferon plus ribavirin treatment for 72 weeks versus standard peginterferon plus ribavirin… (2012) · Cochrane
RR 0.963 studies · 334 participantsVery low
Extended peginterferon plus ribavirin treatment for 72 weeks vs standard peginterferon plus ribavirin treatment
Sustained virological response (SVR) · participants with detectable HCV RNA after four weeks of treatment with pegylated interferon and ribavirin
Extended peginterferon plus ribavirin treatment for 72 weeks versus standard peginterferon plus ribavirin… (2012) · Cochrane
RR 1.273 studies · 995 participantsLow
Extended peginterferon plus ribavirin treatment for 72 weeks vs standard peginterferon plus ribavirin treatment
Relapse rate · participants with detectable HCV RNA after four weeks of treatment with pegylated interferon and ribavirin
Extended peginterferon plus ribavirin treatment for 72 weeks versus standard peginterferon plus ribavirin… (2012) · Cochrane
RR 0.593 studies · 703 participantsLow
Extended peginterferon plus ribavirin treatment for 72 weeks vs standard peginterferon plus ribavirin treatment
End of treatment response (ETR) · participants with detectable HCV RNA after four weeks of treatment with pegylated interferon and ribavirin
Extended peginterferon plus ribavirin treatment for 72 weeks versus standard peginterferon plus ribavirin… (2012) · Cochrane
RR 0.993 studies · 995 participantsLow
Extended peginterferon plus ribavirin treatment for 72 weeks vs standard peginterferon plus ribavirin treatment
Adherance to treatment · participants with detectable HCV RNA after four weeks of treatment with pegylated interferon and ribavirin or…
Extended peginterferon plus ribavirin treatment for 72 weeks versus standard peginterferon plus ribavirin… (2012) · Cochrane
RR 0.952 studies · 260 participantsModerate
Intervention NR
Clinically apparent hepatitis A (low risk of bias trials) Dienstag 1999 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.09 [0.03, 0.3]3 studies · 41430 participantsHigh
Intervention NR
Clinically apparent hepatitis A (Dose of live attenuated HAV vaccine, titre < TCID50 ) all included trials Dienstag 1999 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.11 [0.05, 0.26]3 studies · 628420 participantsVery low
Intervention NR
Clinically apparent hepatitis A (low endemicity) low risk of bias Dienstag 1999 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.19 [0.08, 0.42]1 study · 1037 participantsHigh
Intervention NR
Clinically apparent hepatitis A (low endemicity) all included trials Dienstag 1999 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.19 [0.08, 0.42]1 study · 1037 participantsHigh
Intervention NR
Clinically apparent hepatitis A (high endemicity) low risk of bias Dienstag 1999 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.05 [0.01, 0.17]2 studies · 40393 participantsHigh
Intervention NR
Clinically apparent hepatitis A (high endemicity) all included trials Dienstag 1999 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.08 [0.04, 0.15]8 studies · 731343 participantsVery low
Intervention NR
Clinically apparent hepatitis A (single dose regimen) low risk of bias Dienstag 1999 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.03 [0, 0.47]1 study · 274 participantsHigh
Intervention NR
Clinically apparent hepatitis A (single dose regimen) all included studies Dienstag 1999 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.07 [0.03, 0.15]6 studies · 690707 participantsVery low
Intervention NR
Clinically apparent hepatitis A (multiple doses) low risk of bias Dienstag 1999 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.11 [0.03, 0.4]2 studies · 41156 participantsHigh
Intervention NR
Clinically apparent hepatitis A (multiple doses) all included trials Dienstag 1999 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.14 [0.05, 0.37]3 studies · 41416 participantsModerate
Intervention NR
Clinically apparent hepatitis A ( · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.19 [0.08, 0.42]1 study · 1037 participantsHigh
Intervention NR
Clinically apparent hepatitis A (all included trials) Dienstag 1999 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.09 [0.05, 0.17]9 studies · 732380 participantsVery low
Intervention NR
Clinically apparent hepatitis A ( · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.2 [0.1, 0.37]3 studies · 2377 participantsVery low
Intervention NR
Clinically apparent hepatitis A ( · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.05 [0.01, 0.17]2 studies · 40393 participantsHigh
Intervention NR
Clinicially apparent hepatitis A ( · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.06 [0.02, 0.17]4 studies · 164776 participantsVery low
Intervention NR
Clinically apparent hepatitis A ( · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Clinicially apparent hepatitis A ( · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.05 [0.02, 0.13]1 study · 564642 participantsLow
Intervention NR
Clinically apparent hepatitis A ( · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Clinically apparent hepatitis A ( · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.06 [0.01, 0.41]1 study · 585 participantsLow
Intervention NR
All‐cause mortality low risk of bias Mortality · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 1.4 [0.62, 3.16]1 study · 585 participantsHigh
Intervention NR
All‐cause mortality all included trials Mortality · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 1.4 [0.62, 3.16]1 study · 585 participantsHigh
Intervention NR
Hepatitis A‐related mortality · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Clinically apparent hepatitis A (inactivated HAV vaccines) low risk of bias trials Dienstag 1999 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.09 [0.03, 0.3]3 studies · 41430 participantsHigh
Intervention NR
Lack of sero‐protection, (anti HAV IgG < 10mIU/L) (low risk of bias) Maiwald 1997 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Lack of sero‐protection, (anti HAV IgG < 10mIU/L) (all included trials) Maiwald 1997 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Lack of sero‐protection, (anti HAV IgG < 20mIU/L) (low risk of bias ) Maiwald 1997 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.01 [0, 0.03]1 study · 486 participantsHigh
Intervention NR
Lack of sero‐protection, (anti HAV IgG < 20mIU/L) (all included trials) Maiwald 1997 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 0.01 [0, 0.03]2 studies · 739 participantsLow
Intervention NR
Non‐serious local adverse events (low risk of bias) inactivated HAV vaccine ICH‐GCP 1997 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 1.19 [0.67, 2.11]2 studies · 1299 participantsHigh
Intervention NR
Non‐serious local adverse events (all included trials) ICH‐GCP 1997 · patients with preventing hepatitis A.
Hepatitis A immunisation in persons not previously exposed to hepatitis A (2012) · Cochrane
RR 1.21 [0.86, 1.7]4 studies · 1559 participantsLow