The long-term all-cause mortality occurred in 29 patients in the frailty group (30.5%) and 22 patients in the non-frailty group (7.7%) Frailty was an independent prognostic factor for long-term all-cause mortality with adjusted hazard ratio [HR] = 2.97; 95% confidence interval [CI], 1.62 to 5.46; p <0.001).