Figure 6

Kaplan–Meier overall survival (OS) estimates and 95% confidence intervals for patients in the RT and non-RT groups at three tertiary hospitals in China: (a) pre-PSM and (b) post-PSM. PSM propensity score matching, RT radiotherapy.

Kaplan–Meier overall survival (OS) estimates and 95% confidence intervals for patients in the RT and non-RT groups at three tertiary hospitals in China: (a) pre-PSM and (b) post-PSM. PSM propensity score matching, RT radiotherapy.