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Table 2 Evidence profiles

From: Intravenous branched-chain amino acid administration for the acute treatment of hepatic encephalopathy: a systematic review and meta-analysis

Certainty assessment

No of patients

Effect

Certainty

Importance

No. of studies

Study design

Risk of bias

Inconsistency

Indirectness

Imprecision

Other considerations

BCAA

placebo

Relative (95% CI)

Absolute (95% CI)

Improvement of the disturbance of consciousness

 4

Randomized trials

Very seriousa

Not serious

Not serious

Seriousb

None

59/102 (57.8%)

45/99 (45.5%)

RR 1.26 (0.96 to 1.66)

118 more per 1000 (from 18 fewer to 300 more)

Very low

CRITICAL

All-cause mortality

 3

Randomized trials

Very seriousc

Not serious

Not serious

Seriousb

None

46/92 (50.0%)

51/93 (54.8%)

RR 0.90 (0.70 to 1.16)

55 fewer per 1000 (from 165 fewer to 88 more)

Very low

CRITICAL

Nausea

 1

Randomized trials

Seriousc

Not serious

Not serious

Seriousb

None

3/35 (8.6%)

3/35 (8.6%)

RR 1.00 (0.22 to 4.62)

0 fewer per 1000 (from 67 fewer to 310 more)

Low

IMPORTANT

Diarrhea

 1

Randomized trials

Seriousc

Not serious

Not serious

Seriousb

None

4/35 (11.4%)

5/35 (14.3%)

RR 0.80 (0.23 to 2.73)

29 fewer per 1000 (from 110 fewer to 247 more)

Low

IMPORTANT

  1. Reasons of downgrade:
  2. a. "There are two studies with a high risk of bias."
  3. b. "There is a high possibility that the optimal amount of information is not met."
  4. c. "There is one study with a high risk of bias, and its contribution rate is high."
  5. CI: Confidence interval; RR: Risk ratio; RoB: Risk of Bias