showed a trendp = 0.072
BB users showed a trend towards improved OS (HR 0.50, 95% CI 0.27–1.07; p = 0.072) (Fig. 2 c), with a median OS that was not reached and a 3-year survival of 58% versus a median OS of 34 months and a 3-year survival of 49% in BB non-users.