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Table 1 Demographic and clinical characteristics of 1756 patients with myxoid liposarcoma of extremities after surgery identified in the SEER database from 1973 to 2015

From: Prognostic factors of patients with extremity myxoid liposarcomas after surgery

Category Value
Mean ± SD age (years) 47 ± 17
Median age (years) 45
Age (years)
 < 30 253 (14.4%)
 30–60 1099 (62.6%)
 > 60 404 (23.0%)
Gender
 Female 729 (41.5%)
 Male 1027 (58.5%)
Year of diagnosis
 < 2000 527 (30.0%)
 ≥ 2000 1229 (70.0%)
Location
 Upper limb 185 (10.5%)
 Lower limb 1571 (89.5%)
Tumor size
 Mean (cm) 11
 Median (cm) 10
 < 5 cm 232 (13.2%)
 5–10 cm 609 (34.7%)
 > 10 cm 686 (39.1%)
 Unknown 229 (13.0%)
Tumor gradea
 Low 988 (56.3%)
 High 232 (13.2%)
 Unknown 536 (30.5%)
Radiation treatment
 Yes 1004 (57.2%)
 No 752 (42.8%)
Dead
 Yes 463 (26.4%)
 No 1293 (73.6%)
5-year OS rate 86.4%
5-year CSS rate 90.5%
10-year OS rate 75.9%
10-year CSS rate 85.2%
  1. SD standard deviation, OS overall survival, CSS cancer-specific survival
  2. aLow: grade I (well differentiated) and grade II (moderately differentiated). High: grade III (poorly differentiated) and grade IV (undifferentiated anaplastic)