Table 3 Overall mortality and cancer-specific mortality in univariate and multivariable Cox regression analysis

 Female(n = 145)

Reference

0.325

Reference

0.41

 Male(n = 205)

1.122 (0.892–1.413)

1.105 (0.871–1.402)

 White(n = 278)

Reference

.080

Reference

.182

 Black(n = 40)

1.357 (0.961–1.917)

0.083

1.333 (0.930–1.908)

0.117

 Other(n = 32)

0.773 (0.515–1.162)

0.216

0.847 (0.563–1.274)

0.425

 < 65 years (n = 191)

Reference

0.003

Reference

0.017

 ≥ 65 years (n = 159)

1.413 (1.126–1.773)

1.333 (1.053–1.687)

 III (n = 236)

Reference

0.106

Reference

0.197

 IV (n = 114)

1.223 (0.958–1.559)

1.181 (0.917–1.521)

 < 2 cm (n = 4)

Reference

0.062

Reference

0.48

 2–4 cm (n = 96)

0.739 (0.270–2.025)

0.557

0.698 (0.254–1.915)

0.485

 > 4 cm (n = 152)

0.645 (0.238–1.750)

0.389

0.615 (0.226–1.670)

0.34

 Unknown (n = 98)

0.928 (0.340–2.531)

0.884

 Head/overlapping/body (n = 205)

Reference

0.001

Reference

0.03

Reference

0.002

Reference

0.045

 Tail (n = 80)

0.609 (0.456–0.815)

0.001

0.699(0.520–0.938)

0.017

0.600 (0.443–0.811)

0.001

0.685 (0.504–0.929)

0.015

 Unknown(n = 65)

1.177 (0.871–1.590)

0.289

1.094(0.809–1.482)

0.559

1.069 (0.777–1.470)

0.682

0.999 (0.725–1.376)

0.995

 No (n = 14)

Reference

0.001

Reference

0.003

 Yes (n = 46)

0.936 (0.479–1.971)

0.936

1.151 (0.529–2.501)

0.723

 Unknown(n = 290)

1.777 (0.941–3.353)

0.076

2.022 (0.997–4.103)

0.051

 No (n = 129)

Reference

0.003

Reference

< 0.001

Reference

0.01

Reference

< 0.001

 Yes (n = 221)

0.705 (0.558–0.890)

0.596(0.468–0.760)

0.726 (0.569–0.925)

0.624 (0.485–0.803)

 < 2010 (n = 212)

Reference

0.062

Reference

0.102

 ≥ 2010 (n = 138)

0.791 (0.619–1.012)

0.810 (0.629–1.043)

 No (n = 300)

Reference

< 0.001

Reference

< 0.001

Reference

< 0.001

Reference

< 0.001

 Yes (n = 50)

0.479 (0.337–0.682)

0.427(0.294–0.621)

0.487 (0.337–0.703)

0.440 (0.298–0.648)