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. 2021 Apr 13;11:8046. doi: 10.1038/s41598-021-87357-x

Figure 4.

Figure 4

Cox regression survival analyses for SRS only vs. WBRT (a), SRS only vs. SRS + WBRT (b), and WBRT vs. SRS + WBRT (c). Cox proportional hazards model adjusted for age, sex, CCI, chemotherapy use, surgery use, diagnostic year, and primary tumor location. WBRT whole-brain radiotherapy, SRS stereotactic radiosurgery, HR hazard ratio. Created using SAS software (version 9.4; SAS Institute Inc., Cray, NC, USA).