highly significantp = 0.007
The in-hospital mortality rate of the patients with TIPS insertion from the centers with less than 10 TIPS insertions (10.4%) per year was significantly higher than those with 20 to 30 TIPS insertions per year (6.7%, p = 0.044), and highly significant compared with centers with 30 or more TIPS insertions (7.0%, p = 0.007) (Figure 4 C).