Table 1.

Patient Characteristics for ULMS Cases and Clades

Characteristic	Clade 1	Clade 2	Total	P Value⁎
Number of patients	23 (34%)	44 (66%)	67
Age				.20
Median (range)	54.8 (41–73)	51.6 (26–80)	53.0 (26–80)
Specimen source				.88
Primary specimen	9 (39%)	15 (34%)	24 (36%)
Recurrent specimen	14 (61%)	29 (66%)	43 (64%)
Grade (one missing)				.24
Low	0	5 (11%)	5 (8%)
High	22 (100%)	39 (89%)	61 (91%)
FIGO stage				.90
I	13 (57%)	27 (61%)	40 (60%)
II/III/IV	10 (43%)	17 (39%)	27 (40%)
Primary tumor size (six missing)				.53
≤ 10 cm	9 (43%)	22 (55%)	31 (51%)
> 10 cm	12 (57%)	18 (45%)	30 (49%)
Mitotic index (17 missing)				.86
≤ 20	11 (73%)	23 (66%)	34 (68%)
> 20	4 (27%)	12 (34%)	16 (32%)
Adjuvant treatment				1
No	16 (70%)	32 (73%)	48 (72%)
Yes	7 (30%)	12 (27%)	19 (28%)

^⁎P values were obtained by using Student's t test for age and Fisher's exact test for the other variables.