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. Author manuscript; available in PMC: 2018 Oct 1.
Published in final edited form as: Ann Surg Oncol. 2017 Jul 24;24(11):3252–3263. doi: 10.1245/s10434-017-6019-8

Table 1. Patient demographics and tumor characteristics.

Factor n, %
No Radiation Therapy Pre-Op Radiation Post-Op Radiation p-value
Total 14,263 51.0 3,309 11.8 10,397 31.2
Age 59.64 17.4 58.91 16.2 59.61 16.9 0.070
Sex <0.0001
Male 7,468 52.4 1,872 56.6 5,795 55.7
Female 6,795 47.6 1,437 43.4 4,602 44.3
Year of Diagnosis <0.0001
2004-2006 4,195 29.4 789 23.8 3,326 32.0
2007-2009 4,936 34.6 1,147 34.7 3,585 34.5
2010-2012 5,132 36.0 1,373 41.5 3,486 33.5
Race <0.0001
White 12,027 84.3 2,814 85.0 8,908 85.7
Black 1,490 10.5 353 10.7 925 8.9
American Indian, Aleutian or Eskimo 46 0.3 13 0.4 38 0.4
Asian 250 1.8 43 1.3 263 2.5
Pacific Islander 85 0.6 18 0.5 80 0.8
Other 120 0.8 24 0.7 65 0.6
Unknown 245 1.7 44 1.3 118 1.1
Histology <0.0001
Sarcoma, NOS 2,477 17.4 1,036 31.3 2,168 20.9
Ewing's sarcoma 144 1.0 14 0.4 79 0.8
Epithelioid sarcoma 126 0.9 27 0.8 109 1.1
High grade undifferentiated pleomorphic sarcoma 1,470 10.3 499 15.1 1,806 17.4
Fibrosarcoma 1,330 9.3 291 8.8 1,126 10.8
Solitary fibrous tumor 121 0.9 17 0.5 58 0.6
Dermatofibrosarcoma protuberans 271 1.9 6 0.2 62 0.6
Liposarcoma, NOS 755 5.3 89 2.7 407 3.9
Liposarcoma, well differentiated 1,784 12.5 70 2.1 383 3.7
Myxoid liposarcoma 656 4.6 315 9.5 596 5.7
Round cell liposarcoma 53 0.4 22 0.7 92 0.9
Pleomorphic liposarcoma 209 1.5 104 3.1 324 3.1
Dedifferentiated liposarcoma 454 3.2 57 1.7 354 3.4
Leiomyosarcoma 2,416 16.9 356 10.8 1,319 12.7
Vascular sarcoma 533 3.7 23 0.7 283 2.7
Rhabdomyosarcoma 160 1.1 48 1.5 121 1.2
Synovial sarcoma 411 2.9 195 5.9 455 4.4
Clear cell sarcoma 54 0.4 2 0.1 18 0.2
Chondrosarcoma 342 2.4 35 1.1 127 1.2
Malignant giant cell tumor 21 0.2 1 0.0 11 0.1
Malignant peripheral nerve sheath tumor 468 3.3 98 3.0 484 4.7
Alveolar soft part sarcoma 8 0.1 4 0.1 15 0.1
Grade <0.0001
Grade 1 4,749 33.3 365 11.0 1,416 13.6
Grade 2 2,600 18.2 514 15.5 1,737 16.7
Grade 3 4,123 28.9 1,359 41.1 4,360 41.9
Grade 4 2,791 19.6 1,071 32.4 2,884 27.7
Tumor Size <0.0001
<5 cm 5,276 37.0 421 12.7 3,715 35.8
5-10 cm 4,508 31.6 1335 40.2 3,817 36.7
>10-15 cm 2,074 14.6 843 25.4 1,650 16.0
>15 cm 2,045 17.0 710 21.4 1,215 11.8
Charlson-Deyo Score <0.0001
no comorbid conditions 11,604 81.4 2,733 82.6 8,673 83.4
1 comorbid condition 2,137 15.0 468 14.1 1,425 13.7
>1 comorbid condition 522 3.7 108 3.3 299 2.9
Margins <0.0001
R0 11,395 79.9 2,981 90.1 7,795 75.0
R1 1,636 11.5 190 5.7 1,600 15.4
R2 1,232 8.6 138 4.2 1,002 9.6
Chemo <0.0001
Not given 12,342 86.5 2,247 67.9 8,353 80.3
Given 1,503 10.5 998 30.2 1,771 17.0
Unknown 418 2.9 64 1.9 273 2.6
Facility Type <0.0001
Community Cancer Program 744 5.2 79 2.4 685 6.6
Comprehensive Community Cancer Program 3,876 27.2 608 18.4 3,279 31.5
Academic/Research Program 6,725 47.2 2,021 61.1 4,402 42.3
Integrated Network Cancer Program 828 5.8 141 4.3 638 6.1
Other specified types of cancer program 0 0.0 0 0.0 0 0.0
Unknown 2,090 14.7 460 13.9 1,393 13.4