| | N = 5,654 | | 1999–2005 (n = 1,393) n (%) | 2006–2012 (n = 2,074) n (%) | 2013–2019 (n = 2,187) n (%) |
| Demographics | Sex | Male | 771 (55.3) | 1,155 (55.7) | 1,190 (54.5) | 0.689 | Female | 622 (44.7) | 919 (44.3) | 997 (45.5) | Age group (years) | <30 | 111 (8.0) | 147 (7.1) | 161 (7.4) | <0.001 | 30–59 | 684 (49.1) | 957 (46.1) | 892 (40.8) | ≥60 | 598 (42.9) | 970 (46.8) | 1,134 (51.9) | Race | Caucasian | 1,088 (78.1) | 1,597 (77.0) | 1,648 (75.4) | 0.028 | African American | 135 (9.7) | 195 (9.4) | 202 (9.2) | Other | 162 (11.6) | 276 (13.3) | 314 (14.3) | Unknown | 8 (0.6) | 7 (0.3) | 23 (1.1) | Ethnicity | Non-Hispanic | 1,188 (85.3) | 1,732 (83.5) | 1,794 (82.0) | 0.038 | Hispanic | 205 (14.7) | 342 (16.5) | 393 (18.0) | Marital status | Married | 792 (56.9) | 1,167 (56.3) | 1,247 (57.0) | 0.130 | Single | 283 (20.3) | 440 (21.2) | 487 (22.2) | Other | 279 (20.0) | 381 (18.4) | 374 (17.1) | Unknown | 39 (2.8) | 86 (4.1) | 79 (3.6) |
| Tumor characteristics | Primary site | Upper extremity | 343 (24.6) | 487 (23.5) | 521 (23.8) | 0.738 | Lower extremity | 1,050 (75.4) | 1,587 (76.5) | 1,666 (76.2) | Tumor size (cm) | <5 | 442 (31.7) | 630 (30.4) | 630 (28.8) | 0.350 | 5–10 | 434 (31.2) | 631 (30.4) | 694 (31.7) | >10 | 517 (37.1) | 813 (39.2) | 863 (39.5) | Grade | I | 243 (17.4) | 434 (20.9) | 453 (20.7) | 0.023 | II | 334 (24.0) | 422 (20.3) | 473 (21.6) | III | 816 (58.6) | 1,218 (58.7) | 1,261 (57.7) | Metastasis | No | 990 (71.1) | 1,512 (72.9) | 1,902 (87.0) | <0.001 | Yes | 403 (28.9) | 562 (27.1) | 285 (13.0) | Histology | Fibromatous | 452 (32.4) | 475 (22.9) | 365 (16.7) | <0.001 | Myxomatous | 37 (2.7) | 49 (2.4) | 57 (2.6) | Lipomatous | 412 (29.6) | 609 (29.4) | 599 (27.4) | Myomatous | 180 (12.9) | 269 (13.0) | 276 (12.6) | Synovial | 97 (7.0) | 122 (5.9) | 103 (4.7) | NOS | 74 (5.3) | 151 (7.3) | 107 (4.9) | All other types | 141 (10.1) | 399 (19.2) | 680 (31.1) |
| Treatment | Surgery | No | 53 (3.8) | 98 (4.7) | 156 (7.1) | <0.001 | Yes | 1,340 (96.2) | 1,976 (95.3) | 2,031 (92.9) | Radiation | No/unknown | 577 (41.4) | 900 (43.4) | 959 (43.9) | 0.337 | Yes | 816 (58.6) | 1,174 (56.6) | 1,228 (56.1) | Chemotherapy | No/Unknown | 1,112 (79.8) | 1,602 (77.2) | 1,784 (81.6) | 0.002 | Yes | 281 (20.2) | 472 (22.8) | 403 (18.4) |
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