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. Author manuscript; available in PMC: 2021 Jul 1.
Published in final edited form as: J Surg Res. 2020 Mar 12;251:228–238. doi: 10.1016/j.jss.2020.01.008

Table 4 -.

Univariate Kaplan-Meier log-rank analysis and multivariate Cox proportional hazards models for OS for RPS, TS, and all patients within cohort.

OS RPS Multivariate HR (95% CI); P TS Multivariate HR (95% CI); P All Multivariate HR (95% CI); P
Factor Univariate Univariate Univariate
Female gender P = 0.11 P = 0.27 P = 0.09
Age P < 0.01 1.52 (1.04–2.22); P = 0.03 P < 0.01 0.65 (0.29–1.45); P = 0.29 P = 0.01 1.19 (0.86–1.65); P = 0.29
Race P = 0.81 P = 0.27 P = 0.73
DM P < 0.01 1.85 (1.14–2.99); P = 0.01 P = 0.42 P < 0.01 1.73 (1.56–2.58); P = 0.01
CAD P = 0.10 P = 0.48 P = 0.08
Smoking history P = 0.40 P = 0.01 2.65 (1.34–5.23); P < 0.01 P = 0.52
Prior radiation P = 0.33 P = 0.12 P = 0.02 1.36 (0.79–2.35); P = 0.27
Known genetic syndrome P = 0.12 P < 0.01 0.00 (0.00–>100); P = 0.96 P = 0.04 0.00 (0.00–>100); P = 0.93
Sepsis P < 0.01 4.99 (1.90–13.1); P < 0.01 P < 0.01 0.00 (0.00–>100); P = 1.00 P < 0.01 5.78 (2.23–14.89); P < 0.01
Multifocal P = 0.07 P = 0.21 P = 0.06
Margin P < 0.01 P < 0.01 P = 0.03
 R0 Reference Reference Reference
 R1 1.55 (1.00–2.41); P = 0.05 1.31 (0.71–2.41); P = 0.39 1.49 (1.06–2.09); P = 0.02
 R2 2.67 (1.45–4.94); P < 0.01 2.05 (0.2–21.04); P = 0.55 1.90 (1.04–3.50); P = 0.04
Histology P = 0.08 P < 0.01 P = 0.03
 UPS Reference Reference Reference
 Chondrosarcoma 0.51 (0.14–1.88); P = 0.31 4.00 (1.41–11.32); P < 0.01
 Leiomyosarcoma 1.10 (0.37–3.32); P = 0.86 1.06 (0.61–1.83); P = 0.85
 Liposarcoma 0.72 (0.29–1.82); P = 0.49 0.77 (0.45–1.33); P = 0.35
 Myxofibrosarcoma 2.47 (0.62–9.77); P = 0.20 2.61 (0.76–9.01); P = 0.13
 MPNST 3.25 (0.90–11.81); P = 0.07 5.01 (1.48–17.00); P = 0.01
 PNET 0.94 (0.20–4.39); P = 0.94 0.93 (0.21–4.08); P = 0.93
 Rhabdomyosarcoma 0.00 (0.00–>100); P = 0.99 1.15 (0.14–9.60); P = 0.90
 Angiosarcoma 1.82 (0.60–5.54); P = 0.29 3.60 (1.30–9.95); P = 0.01
 Sarcoma not otherwise specified 0.78 (0.23–2.64); P = 0.69 1.89 (0.84–4.23); P = 0.13
 Small round cell tumors 1.54 (0.26–9.03); P = 0.63 4.39 (1.17–16.50); P = 0.03
 Synovial sarcoma 0.61 (0.24–1.55); P = 0.30 1.27 (0.61–2.66); P = 0.52
 Other 0.35 (0.15–0.72); P = 0.01 1.11 (0.57–2.17); P = 0.76
Grade—low versus high grade P < 0.01 3.25 (1.75–6.05); P < 0.01 P = 0.22 P < 0.01 2.47 (1.55–3.95); P < 0.01
Tumor necrosis P < 0.01 1.96 (1.12–3.43); P = 0.02 P < 0.01 1.04 (0.15–0.72); P = 0.90 P = 0.02 1.30 (0.88–1.91); P = 0.18
Nodal status P < 0.01 1.98 (1.01–3.89); P = 0.05 P = 0.02 6.59 (0.82–52.99); P = 0.08 P = 0.01 1.95 (1.03–3.68); P = 0.04
Neoadjuvant P = 0.89 P = 0.06 P = 0.78
Adjuvant P = 0.95 P < 0.01 1.23 (0.54–2.79); P = 0.57 P = 0.83
Obesity P = 0.58 P < 0.01 0.99 (0.57–1.73); P = 0.62 P = 0.51
Size >20 cm P = 0.41 P = 0.89 P = 0.65
Elevated NLR P = 0.04 1.06 (0.61–1.84); P = 0.83 P = 0.58 P = 0.23
Elevated PLR P = 0.02 1.07 (0.61–1.87); P = 0.82 P = 0.46 P = 0.09

HR = hazard ratio; PNET = primitive neuroectodermal tumor