Table 4. Multivariable analyses of SRT vs. SRS stratified by primary cancer site.

Shows the overall survival of patients by primary cancer site.

Tumor type	Multivariable HR (95% CI)	P
	SRT vs. SRS
Breast cancer	1.14 (0.74–1.75)	0.56
NSCL	0.94 (0.87–1.01)	0.11
SCLC	1.31 (0.89–1.93)	0.17
Other types of lung cancer	1.30 (0.92–1.84)	0.14
Melanoma	0.93 (0.72–1.21)	0.59
Colon cancer	0.42 (0.20–0.85)	0.01
Kidney cancer	0.77 (0.54–1.09)	0.13

Notes.

Multivariable analyses were adjusted for age at diagnosis, sex, race, health insurance status, income level, education level, place of living, comorbidity score, chemotherapy, and year of diagnosis.