3.4.3 Survival
The survival rate of the study population was 79.5% and the median
survival time was 1107 days (IQR, 622–1681 days). Kaplan-Meier analysis
showed a statistically significant difference in survival rates between
the High C0 and Low C0 group (P =
0.025), as well as between the High IPV and Low IPV group (P =
0.007) (Figure 4C and 4F). According to the Cox proportional hazard
model, Low C0 (HR
2.220, 95% CI 1.162–4.243, P = 0.016) and High IPV (HR 2.100,
95% CI 1.120–3.937, P = 0.021) was associated with increased
risk of mortality (Table 2).