Table 3.
Risk factors from the multivariate analyses
| Variable |
Multivariate analysis |
||
| HR | 95%CI | P value | |
| Hepatic encephalopathy | |||
| Age | 1.02 | 1.01-1.04 | 0.001 |
| INR | 2.01 | 1.15-3.50 | 0.014 |
| Child-Pugh score | 1.17 | 1.05-1.31 | 0.004 |
| MELD | 1.06 | 1.01-1.11 | 0.021 |
| Shunting branch of the PV (right/left) | 1.59 | 1.10-2.30 | 0.014 |
| Reduction ratio of PSG (%) | 1.01 | 1.00-1.03 | 0.009 |
| Shunt dysfunction | |||
| Previous splenectomy (yes/no) | 1.76 | 1.16-2.67 | 0.008 |
| Initial stent position (sub-optimal/optimal) | 2.30 | 1.57-3.35 | < 0.001 |
| Survival | |||
| Ascites (yes/no) | 1.87 | 1.13-3.08 | 0.014 |
| INR | 2.31 | 1.34-3.98 | 0.003 |
| Shunting branch of the PV (right/left) | 1.92 | 1.30-2.84 | 0.001 |
| Initial stent position (sub-optimal/optimal) | 1.68 | 1.12-2.50 | 0.011 |
| Child-Pugh score | 1.27 | 1.13-1.43 | < 0.001 |
| MELD | 1.09 | 1.03-1.14 | 0.003 |
| HE within six months (yes/no) | 1.54 | 1.02-2.35 | 0.043 |
| Shunt dysfunction within 6 mo (yes/no) | 2.48 | 1.47-4.19 | 0.001 |
INR: International normalized ratio; PV: Portal vein; MELD: Model for end-stage liver diseases; HE: Hepatic encephalopathy; PSG: Portosystemic pressure gradient.