Overall survival and disease-free survival
cardiovascular deaths, stroke, tumor-related deaths, non-tumor-related diseases
STROKE
At the last follow-up, 40 patients (16.5%) had died, the median follow-up time was 51.9 months. Among them, 4 cases died from non-tumor-related diseases, containing 2 cases of cardiovascular deaths, 1 case of stroke, and 1 case of traffic accident. Taking together, there were 36 cases (14.9%) of tumor-related deaths in this study (18 cases in the Exp-group and 18 cases in the Con-group). The overall survival (OS) was calculated and shown in Fig. 