Fig. 5

Kaplan–Meier curve for overall survival (OS) after docetaxel induction therapy according to risk group. We stratified the patients into two cohorts with low risk (0–1 risk factor present) and high risk (2–3 risk factors present). The blue line indicates survival for patients with low risk (n = 25) and the red line indicates survival for patients with high risk (n = 16). The median OS of patients with low risk and high risk was 26.5 and 11.5 months, respectively (p < 0.000). The risk factors in each risk group were shown in Table 3