Table 4.

Results from univariate Kaplan–Meier models for OS and DFS.

	5 Years—OS % (SE)	p-Value	5 Years—DFS % (SE)	p-Value
Entire sample	90.8% (3.6%)		54.9% (6%)
Gender (N, %)
Male	91% (5%)	0.731	51.1% (8.1%)	0.728
Female	89.7% (5.6%)		59.8% (8.8%)
Age (N, %)
≤60 years	96.8% (3.2%)	0.046	51.9% (8.3%)	0.907
>60 years	85.1% (6.2%)		58.3% (8.5%)
Tumor size (N, %)
<5 cm	90.5% (5.2%)	0.800	52.7% (9%)	0.486
≥5 cm	94.4% (5.4%)		49.7% (9.3%)
Tumor localization
Cervical–thoracic–lumbar region	87.7% (5.8%)	0.477	44.2% (8.5%)	0.017
Sacrococcygeal region	94.6% (3.7%)		64.8% (8.1%)
Surgical margin
Adequate	96.8% (3.2%)	0.065	61% (8%)	0.009
Inadequate	82.2% (9.3%)		23.2% (10.4%)
Ki-67 index (N, %)
≤3%	89.6% (5.7%)	0.648	60.5% (7.9%)	0.125
>3%	96.7% (3.3%)		47.3% (9.1%)
SMARCB1/INI1 immunohistochemical expression (N, %)
Positive	94.8% (3.6%)	0.210	58.6% (8.8%)	0.275
Positive/negative	85.5% (6.8%)		49.4% (9.1%)
Previous surgery
No	88.9% (4.8%)	0.98	66.3% (7.5%)	<0.0005
Yes	93.7% (7.4%)		25.3% (10.4%)
Previous treatment
No	90.6% (4.5%)	0.858	54.4% (7.4%)	0.56
Yes	90.0% (9.5%)		58.4% (14.5%)
Type of surgery
En bloc resection	88.7% (4.8%)	0.693	61.6% (7.2%)	0.899
Other	90.0% (9.5%)		44.7% (17.1%)
Charlson Comorbidity Index (CCI)
≤4	92.3%	0.076	63.0% (7.3%)	0.011
>4	83.8%		39.3% (10.2%)

Statistically significant p values are shown in red color.