Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

259 questions · 268 findings · 33 reviews

No studies found 56 · 20.9%GRADE not reported 21 · 7.8%Very low 68 · 25.4%Low 64 · 23.9%Moderate 49 · 18.3%High 10 · 3.7%

Preoperative enteral nutrition (standard formula) vs usual care or control

Infectious complications · people undergoing gastrointestinal surgery

It is very uncertain whether preoperative enteral nutrition (standard formula) changes infectious complications compared with usual care or control (very low certainty).

1 finding from 1 review

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.

Parenteral nutrition plus branched‐chain‐amino‐acid‐enriched formula showed no clear difference in mortality [within first 10 weeks after liver transplantation] compared with standard isotonic intravenous glucose solution (low certainty).

1 finding from 1 review

Oral paracetamol vs placebo

At least 50% reduction in pain · Patients requiring surgical removal of a lower wisdom tooth or teeth, with baseline moderate to severe pain (surgery under local…

Paracetamol (single oral dose, any dose or formulation; subgroups up… led to higher achieving at least 50% pain relief at 4 hours (using pain intensity… compared with placebo; GRADE not reported.

3 findings from 1 review

Oral paracetamol vs placebo

Patients with one or more adverse events · Patients requiring surgical removal of a lower wisdom tooth or teeth, with baseline moderate to severe pain (surgery under local…

Paracetamol (single oral dose, any dose or formulation; subgroups up… showed no clear difference in patients with one or more adverse events compared with placebo; GRADE not reported.

1 finding from 1 review

Oral paracetamol vs placebo

Participant‐reported pain relief of 50% or greater · Patients requiring surgical removal of a lower wisdom tooth or teeth, with baseline moderate to severe pain (surgery under local…

Paracetamol (single oral dose, any dose or formulation; subgroups up… led to higher achieving at least 50% pain relief at 6 hours (using pain relief… compared with placebo; GRADE not reported.

1 finding from 1 review

Triclosan dentifrice vs Negative control dentifrice

Volatile sulphur compounds (VSC), halimeter · Adolescents and adults aged over 16 years with clinical or self-assessed halitosis of oral origin; excluding induced or physiological…
1 finding from 1 review
  • Interventions for managing halitosis 2019 · Cochrane All outcomes
    Nogueira-Filho 2002 (5-arm trial) compared three commercial 0.3% triclosan dentifrices and an experimental formulation versus a negative control dentifrice; VSC by halimeter. We could not use the results in the…
    1 study
    GRADE not reported