Table 4.

Unadjusted and adjusted overall survival in locoregional disease treated surgically.

UnadjustedAdjusteda
N = 351 (%)HR (95% CI)HR (95% CI)
Sex
 Male219 (62)ReferenceReference
 Female132 (38)0.89 (0.61–1.30)0.72 (0.40–1.28)
Age at diagnosis
 0–3964 (18)0.12 (0.06–0.27)0.18 (0.07–0.46)
 40–64182 (52)0.39 (0.27–0.58)0.45 (0.27–0.78)
 ≥65105 (30)ReferenceReference
Year of diagnosis
 1987–2007187 (53)ReferenceReference
 2008–2016164 (47)0.98 (0.62–1.56)0.79 (0.41–1.55)
Primary tumor location
 Lower extremity203 (58)ReferenceReference
 Upper extremity46 (13)0.82 (0.46–1.46)0.97 (0.44–2.13)
 Abdomen/trunk91 (26)1.18 (0.78–1.79)1.32 (0.73–2.41)
 Head and neck11 (3)1.52 (0.55–4.18)2.75 (0.68–11.18)
Tumor grade
 I46 (13)ReferenceReference
 II103 (29)2.15 (1.04–4.43)1.60 (0.73–3.53)
 III27 (8)2.79 (1.15–6.74)2.08 (0.81–5.31)
 IV22 (6)4.16 (1.74–9.93)2.88 (1.06–7.87)
 Unknown153 (44)bb
Tumor size
 ≤5 cm116 (33)ReferenceReference
 >5 cm202 (58)2.00 (1.29–3.08)1.97 (1.02–3.78)
 Missing33 (9)bb
Chemotherapy
 No/unknown328 (93)ReferenceReference
 Yes23 (7)1.90 (1.04–3.48)2.54 (1.07–6.08)
Radiation
 No/unknown218 (62)ReferenceReference
 Yes133 (38)1.37 (0.95–1.98)1.06 (0.62–1.80)
  • an = 185.

  • bCases with missing data were excluded from unadjusted and adjusted model.