Alveolar soft part sarcoma: progress toward improvement in survival? A population-based study

BMC Cancer

Table 1 Clinical characteristics and univariate analysis of predictors for DSS

Variable	N	%	5-year DSS	p value
Total	120	100	68%	–
Age (median: 27 years)				0.630
≤ 25 years	50	42%	73%
> 25 years	70	58%	65%
Sex				0.429
Male	42	35%	62%
Female	78	65%	72%
Tumor site				0.517
Lower extremity	74	62%	72%
Upper extremity	11	9%	80%
Trunk	34	28%	63%
Head and neck	1	1%	0%
Tumor depth				0.922
Superficial	7	6%	83%
Deep	113	94%	68%
Tumor size (median: 7.0 cm)				0.200
≤ 5 cm	27	23%	94%
> 5 cm, ≤ 10 cm	67	56%	63%
> 10 cm	26	22%	65%
Stage (AJCC 8th)				0.061
II	16	13%	100%
IIIA	13	11%	100%
IIIB	5	4%	0%
IV	86	72%	62%
Metastasis at diagnosis				0.019
Yes	86	72%	62%
No	34	28%	86%
Surgery				0.252
Yes	86	72%	74%
No	34	28%	52%
Radiotherapy				0.147
Yes	16	13%	63%
No	104	87%	69%
Systemic therapy				0.241
Yes	55	46%	61%
No	65	54%	77%

ISSN: 1471-2407