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Table 1 The multivariate analyses of factors associated with overall survival and cancer-specific survival

From: Conditional survival after surgical resection of primary retroperitoneal tumors: a population-based study

Variable OS-multivariate Cox regression CSS-multivariate Cox regression
HR (95% CI) P-value HR (95% CI) P-value
Age
 < 65     
 ≥ 65 1.915 (1.636–2.241)  < 0.001 1.698 (1.417–2.035)  < 0.001
Sex
Male     
Female 0.778 (0.663–0.913) 0.002 0.814 (0.680–0.975) 0.025
Race
White     
Black     
API     
Other     
Marital status     
Married     
Unmarried 1.078 (0.863–1.347) 0.510   
Unknown 1.282 (1.069–1.538) 0.007   
FNCLCC grade
I     
II 1.846 (1.130–3.016) 0.014 1.942 (1.060–3.560) 0.032
III 3.119 (2.075–4.688)  < 0.001 3.569 (2.128–5.985)  < 0.001
Unknown 1.986 (1.359–2.902)  < 0.001 2.263 (1.385–3.697) 0.001
Size (cm)
 < 5     
5–10 1.105 (0.719–1.697) 0.650 1.048 (0.635–1.730) 0.855
10–15 1.397 (0.905–2.155) 0.131 1.377 (0.830–2.285) 0.215
 ≥ 15 1.832 (1.220–2.752) 0.004 1.843 (1.147–2.961) 0.011
Unknown 2.623 (1.567–4.393)  < 0.001 2.366 (1.282–4.367) 0.006
Multifocality
No     
Yes 0.588 (0.464–0.746)  < 0.001 0.111 (0.063–0.198)  < 0.001
Histology
SFT     
MFHC 2.942 (1.280–6.763) 0.011 2.626 (1.061–6.497) 0.037
MPNST 1.914 (0.635–5.775) 0.249 0.727 (0.145–3.639) 0.698
LMS 1.578 (0.734–3.392) 0.242 1.496 (0.655–3.419) 0.339
DD lipo 1.404 (0.657–2.999) 0.382 1.276 (0.562–2.900) 0.560
WD lipo 0.679 (0.311–1.482) 0.331 0.435 (0.183–1.034) 0.060
Other 1.361 (0.638–2.901) 0.425 1.242 (0.548–2.813) 0.603
Radiation
No     
Yes     
Chemotherapy
No     
Yes 1.606 (1.320–1.953)  < 0.001 1.810 (1.464–2.238)  < 0.001
Chemoradiotherapy
No     
Yes     
Extent of resection
Complete     
Incomplete     
Unknown     
  1. SFT solitary fibrous tumor, MFHC Malignant fibrous histiocytoma, MPNST malignant peripheral nerve sheath tumor, LMS leiomyosarcoma, DD lipo dedifferentiated liposarcoma, WD lipo well-differentiated liposarcoma, FNCLCC French National Federation of the Centers for the Fight Against Cancer, API Asian/Pacific Islander, OS overall survival, CSS cancer-specific survival