Treatment of primary biliary cholangitis (PBC) can improve the GLOBE score. We aimed to assess the association between changes in the GLOBE score (DGLOBE) and liver transplantation (LT)-free survival in patients with PBC who were treated with ursodeoxycholic acid (UDCA).
METHODS:Among UDCA-treated patients within the Global PBC cohort, the association between DGLOBE (DGLOBE 0-1 : during the first year of UDCA, DGLOBE 1-2 : during the second year) and the risk of LT or death was assessed through Cox regression analyses.
RESULTS:Overall, 3,775 UDCA-treated patients were included; 3,424 (90.7%) were female, the median age was 54.0 (interquartile range [IQR] 45.9-62.4) years, and the median baseline GLOBE score was 0.25 (IQR 20.47 to 0.96). During a median follow-up of 7.2 (IQR 3.7-11.5) years, 730 patients reached the combined end point of LT or death. The median DGLOBE 0-1 was 20.27 (IQR 20.56 to 0.02). Cox regression analyses, adjusted for pretreatment GLOBE score and DGLOBE 0-1 2 , showed that DGLOBE was associated with LT or death (adjusted hazard ratio 2.28, 95% confidence interval 1.81-2.87, P < 0.001). The interaction between baseline GLOBE score and DGLOBE 0-1 was not statistically significant (P 5 0.296). The DGLOBE 1-2 was associated with LT or death (adjusted hazard ratio 2.19, 95% confidence interval 1.67-2.86, P < 0.001), independently from the baseline GLOBE score and the change in GLOBE score during the first year of UDCA.