Table 2 Actuarial survival in patients with Budd Chiari syndrome treated by interventional radiology alone.

Baseline disease severity*	n	1 y survival (95% CI)	5 y survival (95% CI)
PI ⩽5.4	25	100%†	89% (86–100%)
PI >5.4	36	95% (79–99%)	82% (69–95%)

Actuarial survival in the two subgroups of patients with a prognostic index (PI) ⩽5.4 and >5.4 was not significantly different (log rank test, p = 0.082).

*Disease severity stratified using PI described by Zeitoun and colleagues.² In a study of 120 patients with Budd Chiari syndrome, 88 of whom had surgical portosystemic shunts, they reported actuarial one and five year survival of 100% and 94% (SEM 5) in patients with PI ⩽5.4 and 77% (SEM 8) and 62% (SEM 10) in patients with PI >5.4, respectively.

†100% survival, so confidence intervals not available.