TABLE I.

Initial Presenting Features for the Total Analytic Population As Well As the P9754 and P9851 Populations

	Analytic population	Non-analytic P9754 population	Non-analytic P9851 population
Gender
Male	78 (52.3%)	79 (60.8%)	250 (54.2%)
Female	71 (47.7%)	51 (39.2%)	211 (45.8%)
Race
White	107 (71.8%)	89 (68.5%)	336 (72.9%)
Black	21 (14.1%)	20 (15.4%)	58 (12.6%)
Other	15 (10.1%)	15 (11.5%)	52 (11.3%)
Unknown	6 (4.0%)	6 (4.6%)	15 (3.3%)
Ethnicity
Non-Hispanic	90 (60.4%)	97 (74.6%)	381 (82.6%)
Hispanic	15 (10.1%)	13 (10.0%)	59 (12.8%)
Unknown	44 (29.5%)	20 (15.4%)	21 (4.6%)
Median age (min–max)	14.02 (4.72–28.40)	14.38 (3.85–30.50)	14.09 (0.18–33.17)
<10	25 (16.8%)	24 (18.5%)	74 (16.0%)
10–17	106 (71.1%)	85 (65.4%)	335 (72.7%)
18+	18 (12.1%)	21 (16.1%)	52 (11.3%)
Primary tumor site
Extremity	145 (97.3%)	130 (100%)	428 (92.8%)
Pelvis	2 (1.3%)	0	22 (4.8%)
Other	2 (1.3%)	0	11 (2.4%)
Disease at diagnosis
Non-metastatic	135 (90.6%)	130 (100%)	371 (80.5%)
Metastatic	14 (9.4%)	0	90 (19.5%)