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. 2013 Dec 12;2013(12):CD003327. doi: 10.1002/14651858.CD003327.pub4

Summary of findings 2. LC + LCBDE versus pre‐operative ERCP + LC for common bile duct stones.

LC + LCBDE versuspre‐operative ERCP + LC for common bile duct stones
Patient or population: with common bile duct stones
 Settings: secondary or tertiary hospital
 Intervention: LC+ LCBDE
Outcomes Illustrative comparative risks* (95% CI) Relative effect
 (95% CI) No of Participants
 (studies) Quality of the evidence
 (GRADE) Comments
Assumed risk Corresponding risk
Control LC+ LCBDE
Mortality at 30 days Study population OR 0.72 
 (0.12 to 4.33) 580
 (5 studies) ⊕⊕⊕⊝
 moderate1  
10 per 1000 7 per 1000 
 (1 to 43)
Moderate
0 per 1000 0 per 1000 
 (0 to 0)
Total morbidity Study population OR 1.28 
 (0.8 to 2.05) 580
 (5 studies) ⊕⊕⊕⊝
 moderate1  
125 per 1000 155 per 1000 
 (103 to 227)
Moderate
125 per 1000 155 per 1000 
 (103 to 227)
Failure of procedure Study population OR 0.51 
 (0.16 to 1.59) 580
 (5 studies) ⊕⊕⊕⊕
 moderate1 Random‐effects model
166 per 1000 92 per 1000 
 (31 to 241)
Moderate
169 per 1000 94 per 1000 
 (32 to 244)
Retained stones after primary intervention Study population OR 0.79 
 (0.45 to 1.39) 580
 (5 studies) ⊕⊕⊕⊕
 moderate1  
105 per 1000 85 per 1000 
 (50 to 140)
Moderate
125 per 1000 101 per 1000 
 (60 to 166)
Conversion to open surgery Study population OR 1.46 
 (0.76 to 2.81) 580
 (5 studies) ⊕⊕⊕⊕
 moderate1  
58 per 1000 82 per 1000 
 (44 to 147)
Moderate
59 per 1000 84 per 1000 
 (45 to 150)
*The basis for the assumed risk (e.g. the median control group risk across studies) is provided in footnotes. 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 Included low‐risk and high‐risk groups of surgical participants