Overcoming a travel burden to high-volume centers for treatment of retroperitoneal sarcomas is associated with improved survival

Table 3 Adjusted overall survival for patients who traveled to high-volume centers vs. patients who received low-volume surgical care locally

	Hazard ratio	Lower 95% CI	Upper 95% CI	p value
LT/HV^a travel	0.726	0.601	0.878	0.0009
Patient age (years, median, IQR)	1.024	1.017	1.031	< 0.0001
Female gender	0.971	0.807	1.168	0.752
Race
Black	1.030	0.745	1.426	0.857
Other	0.867	0.552	1.362	0.535
Insurance status	0.673	0.356	1.273	0.223
Charlson-Deyo score
1	1.374	1.100	1.717	0.0052
2	1.328	0.885	1.993	0.171
Tumor grade
2	1.720	1.202	2.460	0.003
3	3.910	3.049	5.015	< 0.0001
Radiotherapy	0.754	0.615	0.925	0.0068

ISSN: 1477-7819