From: Radiation therapy for retroperitoneal sarcoma: practice patterns in North America
Odds ratio | Confidence interval | p value | |
---|---|---|---|
Sex | |||
Female | Reference | ||
Male | 1.371 | 1.066–1.762 | 0.014 |
Race | |||
Caucasian | Reference | ||
African American | 0.752 | 0.493–1.146 | NS |
Asian | 0.934 | 0.488–1.790 | NS |
Other | 1.440 | 0.475–4.363 | NS |
Unknown | 1.521 | 0.442–5.236 | NS |
Ethnicity | |||
Hispanic | Reference | ||
Not Hispanic | 3.022 | 1.586–5.760 | 0.001 |
Unknown | 2.188 | 0.892–5.366 | NS |
Great Circle Distance | 1.005 | 1.001–1.010 | 0.024 |
Facility Type | |||
Community Cancer Program | Reference | ||
Academic/Research Program | 6.162 | 2.531–15.001 | < 0.0001 |
Comprehensive Community Cancer Program | 2.345 | 0.976–5.631 | NS |
Integrated Network Cancer Program | 4.261 | 1.405–12.924 | 0.011 |
Unknown | 4.860 | 1.777–13.293 | 0.002 |
Year of Diagnosis | 1.175 | 1.093–1.263 | < 0.0001 |
Annual Hospital Volume | |||
Average < 5 cases per year | Reference | ||
Average 5–10 cases per year | 1.762 | 0.773–4.015 | NS |
Average > 10 cases/year | 14.795 | 6.058–36.136 | < 0.0001 |
Tumor differentiation | |||
Well differentiated | Reference | ||
Moderately differentiated | 0.827 | 0.479–1.427 | NS |
Poorly differentiated | 0.487 | 0.317–0.749 | NS |
Undifferentiated | 0.734 | 0.442–1.218 | NS |
Unknown | 0.889 | 0.558–1.416 | NS |
Histology | |||
Leiomyosarcoma | Reference | ||
Liposarcoma | 0.574 | 0.409–0.805 | 0.001 |
Other | 0.842 | 0.563–1.259 | NS |
Tumor size | |||
≤ 10 cm | Reference | ||
> 10 cm | 2.009 | 1.477–2.733 | < 0.0001 |
Tumor Grade | |||
Grade 1 | Reference | ||
Grade 2 | 0.758 | 0.398–1.443 | NS |
Grade 3 | 0.873 | 0.532–1.431 | NS |
Unknown | 0.979 | 0.564–1.699 | NS |