Skip to main content
. 2012 May 16;2012(5):CD008344. doi: 10.1002/14651858.CD008344.pub2

Comparison 5.

Appearance of encephalopathy ‐ all studies

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 All studies 23 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
1.1 All trials 23 1062 Risk Ratio (M‐H, Fixed, 95% CI) 0.84 [0.65, 1.08]
1.2 Standard amino acids 11 339 Risk Ratio (M‐H, Fixed, 95% CI) 0.86 [0.50, 1.48]
1.3 BCAAs 15 772 Risk Ratio (M‐H, Fixed, 95% CI) 0.82 [0.63, 1.09]
2 Parenteral nutrition ‐ all trials 5 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
2.1 All trials 5 231 Risk Ratio (M‐H, Fixed, 95% CI) 0.52 [0.21, 1.25]
2.2 Standard amino acids 3 87 Risk Ratio (M‐H, Fixed, 95% CI) 0.38 [0.10, 1.48]
2.3 BCAAs 2 144 Risk Ratio (M‐H, Fixed, 95% CI) 0.66 [0.21, 2.12]
3 Parenteral nutrition ‐ medical trials 3 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
3.1 All trials 3 87 Risk Ratio (M‐H, Fixed, 95% CI) 0.38 [0.10, 1.48]
3.2 Standard amino acids 3 87 Risk Ratio (M‐H, Fixed, 95% CI) 0.38 [0.10, 1.48]
3.3 BCAAs 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
4 Parenteral nutrition ‐ surgical trials 2 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
4.1 All trials 2 144 Risk Ratio (M‐H, Fixed, 95% CI) 0.66 [0.21, 2.12]
4.2 Standard amino acids 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
4.3 BCAAs 2 144 Risk Ratio (M‐H, Fixed, 95% CI) 0.66 [0.21, 2.12]
5 Enteral nutrition ‐ all studies 4 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
5.1 Standard amino acids 4 91 Risk Ratio (M‐H, Fixed, 95% CI) 1.73 [0.67, 4.45]
5.2 BCAAs 1 24 Risk Ratio (M‐H, Fixed, 95% CI) 2.36 [0.53, 10.55]
6 Enteral nutrition ‐ medical trials 4 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
6.1 All studies 4 102 Risk Ratio (M‐H, Fixed, 95% CI) 1.33 [0.52, 3.44]
6.2 Standard amino acids 4 91 Risk Ratio (M‐H, Fixed, 95% CI) 1.73 [0.67, 4.45]
6.3 BCAAs 1 24 Risk Ratio (M‐H, Fixed, 95% CI) 2.36 [0.53, 10.55]
7 Enteral nutrition ‐ surgical trials 0 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
7.1 All trials 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
7.2 Standard amino acids 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
7.3 BCAAs 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
8 Supplements 14 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
8.1 All trials 14 734 Risk Ratio (M‐H, Fixed, 95% CI) 0.80 [0.61, 1.05]
8.2 Standard amino acids ‐medical trials 4 170 Risk Ratio (M‐H, Fixed, 95% CI) 0.70 [0.31, 1.57]
8.3 BCAAs ‐ medical trials 10 536 Risk Ratio (M‐H, Fixed, 95% CI) 0.79 [0.60, 1.05]
8.4 All supplements ‐ medical 12 666 Risk Ratio (M‐H, Fixed, 95% CI) 0.80 [0.61, 1.05]
8.5 All surgical 2 68 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
9 Medical trials all trials 19 846 Risk Ratio (M‐H, Fixed, 95% CI) 0.85 [0.66, 1.11]
9.1 Parenteral nutrition 3 87 Risk Ratio (M‐H, Fixed, 95% CI) 0.38 [0.10, 1.48]
9.2 Enteral nutrition 4 102 Risk Ratio (M‐H, Fixed, 95% CI) 1.85 [0.75, 4.56]
9.3 Supplements 12 657 Risk Ratio (M‐H, Fixed, 95% CI) 0.80 [0.61, 1.06]
10 Medical trials ‐ standard amino acids 11 339 Risk Ratio (M‐H, Fixed, 95% CI) 0.86 [0.50, 1.48]
10.1 Parenteral nutrition 3 87 Risk Ratio (M‐H, Fixed, 95% CI) 0.38 [0.10, 1.48]
10.2 Enteral nutrition 4 91 Risk Ratio (M‐H, Fixed, 95% CI) 1.73 [0.67, 4.45]
10.3 Supplements 4 161 Risk Ratio (M‐H, Fixed, 95% CI) 0.74 [0.32, 1.67]
11 Medical trials ‐ BCAAs 11 560 Risk Ratio (M‐H, Fixed, 95% CI) 0.85 [0.64, 1.12]
11.1 Parenteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
11.2 Enteral nutrition 1 24 Risk Ratio (M‐H, Fixed, 95% CI) 2.36 [0.53, 10.55]
11.3 Supplements 10 536 Risk Ratio (M‐H, Fixed, 95% CI) 0.79 [0.60, 1.05]
12 Surgical trials ‐ all studies 4 212 Risk Ratio (M‐H, Fixed, 95% CI) 0.66 [0.21, 2.12]
12.1 Parenteral nutrition 2 144 Risk Ratio (M‐H, Fixed, 95% CI) 0.66 [0.21, 2.12]
12.2 Enteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
12.3 Supplements 2 68 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
13 Surgical trials ‐ standard amino acids 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
13.1 Parenteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
13.2 Enteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
13.3 Supplements 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
14 Surgical trials ‐ BCAAs 4 212 Risk Ratio (M‐H, Fixed, 95% CI) 0.66 [0.21, 2.12]
14.1 Parenteral nutrition 2 144 Risk Ratio (M‐H, Fixed, 95% CI) 0.66 [0.21, 2.12]
14.2 Enteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
14.3 Supplements 2 68 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
15 Alcoholic hepatitis ‐ all studies 6 172 Risk Ratio (M‐H, Fixed, 95% CI) 1.19 [0.53, 2.68]
15.1 Parenteral nutrition 2 47 Risk Ratio (M‐H, Fixed, 95% CI) 0.19 [0.01, 3.52]
15.2 Enteral nutrition 2 48 Risk Ratio (M‐H, Fixed, 95% CI) 1.95 [0.57, 6.69]
15.3 Supplements 2 77 Risk Ratio (M‐H, Fixed, 95% CI) 1.21 [0.32, 4.56]
16 Alcoholic hepatitis ‐ standard amino acids 6 161 Risk Ratio (M‐H, Fixed, 95% CI) 1.06 [0.45, 2.50]
16.1 Parenteral nutrition 2 47 Risk Ratio (M‐H, Fixed, 95% CI) 0.19 [0.01, 3.52]
16.2 Enteral nutrition 2 37 Risk Ratio (M‐H, Fixed, 95% CI) 1.75 [0.45, 6.70]
16.3 Supplements 2 77 Risk Ratio (M‐H, Fixed, 95% CI) 1.21 [0.32, 4.56]
17 Alcoholic hepatitis ‐ BCAA 1 24 Risk Ratio (M‐H, Fixed, 95% CI) 2.36 [0.53, 10.55]
17.1 Parenteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
17.2 Enteral nutrition 1 24 Risk Ratio (M‐H, Fixed, 95% CI) 2.36 [0.53, 10.55]
17.3 Supplements 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
18 Cirrhosis ‐ all studies 12 420 Risk Ratio (M‐H, Fixed, 95% CI) 0.83 [0.64, 1.08]
18.1 Parenteral nutrition 1 40 Risk Ratio (M‐H, Fixed, 95% CI) 0.5 [0.10, 2.43]
18.2 Enteral nutrition 2 54 Risk Ratio (M‐H, Fixed, 95% CI) 1.71 [0.46, 6.44]
18.3 Supplements 9 326 Risk Ratio (M‐H, Fixed, 95% CI) 0.80 [0.62, 1.04]
19 Cirrhosis ‐ standard amino acids 6 229 Risk Ratio (M‐H, Fixed, 95% CI) 0.95 [0.53, 1.72]
19.1 Parenteral nutrition 1 40 Risk Ratio (M‐H, Fixed, 95% CI) 0.5 [0.10, 2.43]
19.2 Enteral nutrition 2 54 Risk Ratio (M‐H, Fixed, 95% CI) 1.71 [0.46, 6.44]
19.3 Supplements 3 135 Risk Ratio (M‐H, Fixed, 95% CI) 0.93 [0.44, 1.97]
20 Cirrhosis ‐ BCAAs 8 231 Risk Ratio (M‐H, Fixed, 95% CI) 0.81 [0.63, 1.04]
20.1 Parenteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
20.2 Enteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
20.3 Supplementss 8 231 Risk Ratio (M‐H, Fixed, 95% CI) 0.81 [0.63, 1.04]
21 HCC ‐ all studies 2 305 Risk Ratio (M‐H, Fixed, 95% CI) 0.75 [0.38, 1.48]
21.1 Parenteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
21.2 Enteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
21.3 Supplements 2 305 Risk Ratio (M‐H, Fixed, 95% CI) 0.75 [0.38, 1.48]
22 HCC ‐ standard amino acids 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
22.1 Parenteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
22.2 Enteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
22.3 Supplements 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
23 HCC ‐ BCAAs 2 305 Risk Ratio (M‐H, Fixed, 95% CI) 0.75 [0.38, 1.48]
23.1 Parenteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
23.2 Enteral nutrition 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
23.3 Supplements 2 305 Risk Ratio (M‐H, Fixed, 95% CI) 0.75 [0.38, 1.48]
24 Abstracts excluded 18 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
24.1 All trials 18 659 Risk Ratio (M‐H, Fixed, 95% CI) 0.85 [0.64, 1.13]
24.2 Standard amino acids 7 201 Risk Ratio (M‐H, Fixed, 95% CI) 0.89 [0.42, 1.86]
24.3 BCAAs 12 471 Risk Ratio (M‐H, Fixed, 95% CI) 0.88 [0.67, 1.16]
24.4 Parenteral nutrition all 5 231 Risk Ratio (M‐H, Fixed, 95% CI) 0.52 [0.21, 1.25]
24.5 Parenteral nutrition ‐ SAAs 3 87 Risk Ratio (M‐H, Fixed, 95% CI) 0.38 [0.10, 1.48]
24.6 Parenteral nutrition ‐ BCAAs 2 144 Risk Ratio (M‐H, Fixed, 95% CI) 0.66 [0.21, 2.12]
24.7 Enteral nutrition all 2 48 Risk Ratio (M‐H, Fixed, 95% CI) 1.95 [0.57, 6.69]
24.8 Enteral nutrition ‐ SAAs 2 37 Risk Ratio (M‐H, Fixed, 95% CI) 1.75 [0.45, 6.70]
24.9 Enteral nutrition ‐ BCAAs 1 24 Risk Ratio (M‐H, Fixed, 95% CI) 2.36 [0.53, 10.55]
24.10 Supplements all 11 380 Risk Ratio (M‐H, Fixed, 95% CI) 0.88 [0.68, 1.13]
24.11 Supplements ‐ SAAs 2 77 Risk Ratio (M‐H, Fixed, 95% CI) 1.21 [0.32, 4.56]
24.12 Supplements ‐ BCAAs 9 303 Risk Ratio (M‐H, Fixed, 95% CI) 0.84 [0.68, 1.03]
25 Surgical trials ‐ transplant trials eliminated 3 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
25.1 All trials 3 192 Risk Ratio (M‐H, Fixed, 95% CI) 0.94 [0.25, 3.58]
25.2 Standard amino acids 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
25.3 BCAAs 3 192 Risk Ratio (M‐H, Fixed, 95% CI) 0.94 [0.25, 3.58]
26 ITT ‐ Parenteral nutrition ‐ best‐case scenario 5 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
26.1 All trials 5 257 Risk Ratio (M‐H, Fixed, 95% CI) 0.25 [0.11, 0.55]
26.2 Standard amino acids 3 87 Risk Ratio (M‐H, Fixed, 95% CI) 0.38 [0.10, 1.48]
26.3 BCAAs 2 170 Risk Ratio (M‐H, Fixed, 95% CI) 0.21 [0.08, 0.55]
27 ITT ‐ Parenteral nutrition ‐ worst‐case scenario 5 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
27.1 All trials 5 257 Risk Ratio (M‐H, Fixed, 95% CI) 1.37 [0.70, 2.71]
27.2 Standard amino acids 3 87 Risk Ratio (M‐H, Fixed, 95% CI) 0.38 [0.10, 1.48]
27.3 BCAAs 2 170 Risk Ratio (M‐H, Fixed, 95% CI) 2.38 [0.99, 5.73]
28 ITT ‐ Enteral nutrition ‐ best‐case scenario 4 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
28.1 All trials 4 112 Risk Ratio (M‐H, Fixed, 95% CI) 1.20 [0.53, 2.74]
28.2 Standard amino acids 4 101 Risk Ratio (M‐H, Fixed, 95% CI) 1.07 [0.45, 2.52]
28.3 BCAAs 1 24 Risk Ratio (M‐H, Fixed, 95% CI) 2.36 [0.53, 10.55]
29 ITT ‐ Enteral nutrition ‐ worst‐case scenario 4 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
29.1 All trials 4 112 Risk Ratio (M‐H, Fixed, 95% CI) 2.77 [1.23, 6.26]
29.2 Standard amino acids 4 101 Risk Ratio (M‐H, Fixed, 95% CI) 2.78 [1.19, 6.48]
29.3 BCAAs 1 24 Risk Ratio (M‐H, Fixed, 95% CI) 2.36 [0.53, 10.55]
30 ITT‐ Supplements ‐ best‐case scenario 14 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
30.1 All trials 14 782 Risk Ratio (M‐H, Fixed, 95% CI) 0.61 [0.47, 0.79]
30.2 Standard amino acids ‐medical trials 4 191 Risk Ratio (M‐H, Fixed, 95% CI) 0.36 [0.18, 0.72]
30.3 BCAAs ‐ medical trials 10 559 Risk Ratio (M‐H, Fixed, 95% CI) 0.69 [0.52, 0.90]
30.4 All supplements ‐ medical 12 707 Risk Ratio (M‐H, Fixed, 95% CI) 0.62 [0.48, 0.81]
30.5 All surgical 2 74 Risk Ratio (M‐H, Fixed, 95% CI) 0.2 [0.01, 3.97]
31 ITT ‐ Supplements ‐ worst‐case scenario 14 Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
31.1 All trials 14 781 Risk Ratio (M‐H, Fixed, 95% CI) 1.18 [0.90, 1.54]
31.2 Standard amino acids ‐medical trials 4 191 Risk Ratio (M‐H, Fixed, 95% CI) 1.57 [0.79, 3.13]
31.3 BCAAs ‐ medical trials 10 559 Risk Ratio (M‐H, Fixed, 95% CI) 1.02 [0.78, 1.35]
31.4 All supplements ‐ medical 12 707 Risk Ratio (M‐H, Fixed, 95% CI) 1.11 [0.85, 1.45]
31.5 All surgical 2 74 Risk Ratio (M‐H, Fixed, 95% CI) 9.0 [0.51, 158.85]