Fig. 2

Kaplan-Meier survival curve analysis of the probability of non-CRBSI in the vancomycin-lock and control groups. The probability (log rank (mantel-cox)) of non-CRBSI was significantly larger in the vancomycin-lock group at each same time point after the baseline (i.e. day 10, 20, 30, and 40) (p < 0.001). The numbers of patients without CRBSI in the vancomycin-lock and control groups were 68 vs 69 at day 0, 67 vs 54 at day 10, 59 vs 33 at day 20, 53 vs 26 at day 30, and 50 vs 23 at day 40, respectively