Table 3 Multivariate analysis for LFFS, DMFS and OS

Age (>50 vs. ≤50)

0.980

0.774

0.210

Gender

0.602

0.780

0.794

Location

0.560

0.453

0.506

Histology

0.621

<0.001

<0.001

 Rhabdomyosarcoma

1.00

1.00

 Fibrosarcoma

0.128 (0.029–0.569)

0.012

0.142 (0.039–0.510)

0.003

 MFH

0.574 (0.281–1.174)

0.088

0.516 (0.254–1.047)

0.067

 Liposarcoma

0.161 (0.069–0.378)

<0.001

0.186 (0.088–0.392)

<0.001

 Others

0.407 (0.154–1.074)

0.074

0.426 (0.169–1.073)

0.070

Tumor size (cm)

0.033

0.066

0.003

 ≤5

1.00

1.00

 >5

1.815 (1051–3.138)

2.638 (1.392–4.998)

Grade

0.147

0.259

0.400

Margin status

0.002

0.143

<0.001

 Negative

1.00

1.00

1.00

 Positive

2.595 (1.432–4.702)

2.187 (1.055–4.536)

3.942 (2.233–6.959)

Lymph node status

0.909

0.272

0.582

Chemotherapy

0.687

0.894

0.719

Radiotherapy

0.001

0.769

0.017

 No

1.00

1.00

 Yes

0.408 (0.235–0.707)

0.512 (0.296–0.886)