Skip to main content
. 2017 Mar 30;2017(3):CD011640. doi: 10.1002/14651858.CD011640.pub2

Summary of findings 2. Bile acids versus no intervention for non‐alcohol related fatty liver disease.

Bile acids versus no intervention for non‐alcohol related fatty liver disease
Patient or population: participants with non‐alcohol related fatty liver disease (NAFLD)
 Settings: secondary or tertiary care
 Intervention: bile acids
 Control: no intervention
Outcomes Illustrative comparative risks* (95% CI) Relative effect
 (95% CI) No of participants
 (trials) Quality of the evidence
 (GRADE)
Assumed risk Corresponding risk
No intervention Bile acids
Mortality at maximal follow‐up
Follow‐up: 1 to 18 months
10 per 1000 49 per 1000 
 (2 to 520) OR 5.11
(0.24 to 107.34)
659
(4 trials)
⊕⊝⊝⊝
 very low1,2,3
Serious adverse events (proportion)
Follow‐up: 1 to 17 months
64 per 1000 96 per 1000 
 (54 to 165) OR 1.56 
 (0.84 to 2.88) 404 
 (3 trials) ⊕⊝⊝⊝
 very low1,2,3
Serious adverse events (number of events)
Follow‐up: 1 to 17 months
101 per 1000 102 per 1000 
 (67 to 156) Rate ratio 1.01 
 (0.66 to 1.54) 404 
 (3 trials) ⊕⊝⊝⊝
 very low1,2,3
Health‐related quality of life None of the trials reported this outcome.
*The basis for the assumed risk is the mean control group risk across studies, except for mortality at maximal follow‐up where there were no deaths; a control group proportion of 1% was used for mortality at maximal follow‐up. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
 CI: Confidence interval; OR: Odds ratio.
GRADE Working Group grades of evidence
 High quality: Further research is very unlikely to change our confidence in the estimate of effect.
 Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
 Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
 Very low quality: We are very uncertain about the estimate.

1 Downgraded one level for risk of bias because of the high risk of bias in the trial(s).
 2 Downgraded one level for imprecision because of sample size.
 3 Downgraded one level for imprecision because of wide confidence intervals.