Table 1.
Selected Demographic and Clinical Characteristics of Patients with Localized Synovial Sarcoma, 2000–2018
| Characteristics | AYA 15–39 years, N = 346, % (N) | Adult ≥40 years, N = 272, % (N) | p |
|---|---|---|---|
| Age | <0.001 | ||
| 15–18 | 18.5 (64) | ||
| 19–21 | 13.3 (46) | ||
| 22–30 | 31.5 (109) | ||
| 31–39 | 36.7 (127) | ||
| 40–65 | 86.0 (234) | ||
| >65 | 14.0 (38) | ||
| Sex | |||
| Female | 48.3 (167) | 50.4 (137) | 0.61 |
| Male | 51.7 (179) | 49.6 (135) | |
| Health insurance | |||
| Private | 69.9 (242) | 70.2 (191) | 0.99 |
| Public/uninsured | 26.3 (91) | 26.1 (71) | |
| Unknown | 3.8 (13) | 3.7 (10) | |
| Race/ethnicity | |||
| NH White | 35.8 (124) | 47.4 (129) | 0.03 |
| Black | 5.8 (20) | 5.9 (16) | |
| Hispanic | 46.5 (161) | 34.6 (94) | |
| Asian/Pacific Islander | 9.8 (34) | 10.3 (28) | |
| Other | 2.0 (7) | 1.8 (5) | |
| Neighborhood socioeconomic status | |||
| Low | 32.7 (113) | 30.9 (84) | 0.19 |
| Medium | 35.8 (124) | 30.9 (84) | |
| High | 31.5 (109) | 38.2 (104) | |
| Tumor size | |||
| 0–5 cm | 46.5 (161) | 40.1 (109) | 0.05 |
| 5.1–10 cm | 31.2 (108) | 31.6 (86) | |
| >10 cm | 11.6 (40) | 19.1 (52) | |
| Unknown | 10.7 (37) | 9.2 (25) | |
| Primary site | |||
| Body wall | 13.6 (47) | 15.1 (41) | 0.06 |
| Extremity | 77.7 (269) | 72.1 (196) | |
| Head/neck | 5.8 (20) | 5.5 (15) | |
| Visceral | 2.6 (9) | 7.4 (20) | |
| Other | 0.3 (1) | 0 (0) | |
| Radiotherapy | |||
| Yes | 62.1 (215) | 58.1 (158) | 0.29 |
| No | 37.6 (130) | 41.9 (114) | |
| Unknown | 0.3 (1) | 0 (0) | |
| Chemotherapy | |||
| Yes | 47.7 (165) | 36.4 (99) | 0.003 |
| No | 50.0 (173) | 62.9 (171) | |
| Unknown | 2.3 (8) | 0.7 (2) | |
| Surgery | |||
| Yes | 95.4 (330) | 95.2 (259) | 0.67 |
| No | 4.0 (14) | 4.8 (13) | |
| Unknown | 0.6 (2) | 0 (0) | |
| Comorbidities | |||
| No | 61.0 (211) | 57.0 (155) | <0.001 |
| Yes | 5.5 (19) | 20.6 (56) | |
| Unknown | 33.5 (116) | 22.4 (61) | |
| Distance to SCC | |||
| 0–10 miles | 53.5 (185) | 47.4 (129) | 0.29 |
| 11–20 miles | 17.3 (60) | 23.5 (64) | |
| 21–30 miles | 7.5 (26) | 9.2 (25) | |
| 31–40 miles | 4.3 (15) | 3.3 (9) | |
| >40 miles | 17.3 (60) | 16.5 (45) | |
| Initial cancer care at an SCC | |||
| All | 24.6 (85) | 13.2 (36) | <0.001 |
| Part | 37.0 (128) | 33.1 (90) | |
| None | 38.4 (133) | 53.7 (146) | |
| Vital status | |||
| Alive | 79.5 (275) | 62.9 (171) | <0.001 |
| Death | 20.5 (71) | 37.1 (101) | |
| From sarcomas | 66.2 (47) | 52.5 (53) | 0.07 |
| From other causes | 33.8 (24) | 47.5 (48) | |
AYAs, adolescents and young adults; NH, non-Hispanic; SCC, Specialized Cancer Center.