Table 1. Patient Characteristics.

Comparison of characteristics by age for patients with non-metastatic RMS treated on IRS-IV, D9602, and D9803

Characteristic	< 1 year (N = 76)		1 – 9 years (N = 1230)		≥10 years (N = 537)		p-value
	N	%	N	%	N	%
Sex
Male	45	59	770	63	341	64	0.76
Female	31	41	460	37	196	36
Histology
Embryonal	43	57	882	72	271	50	<0.0001
Alveolar	16	21	275	22	202	38
UDS/Other	17	22	73	6	64	12
Primary Tumor Site
Parameningeal	3	4	291	24	141	26	<0.0001
Orbit	4	5	157	13	48	9
Head & Neck	13	17	98	8	38	7
Extremity	12	16	127	10	73	14
Trunk/Abdomen	16	21	132	11	40	7
GU B/P	12	16	141	11	21	4
GU non-B/P	12	16	242	20	153	28
Other, unspecified	4	5	24	2	10	2
IRS Stage
1	29	38	502	41	238	44	0.015
2	19	25	259	21	78	15
3	28	37	469	38	220	41
IRS Group
I	18	24	255	21	123	23	0.44
II	15	20	204	17	100	19
III	43	57	771	63	314	58
Tumor Size
≤ 5cm	45	59	698	57	232	44	<0.0001
> 5cm	31	41	523	43	300	56
T-Stage
T-1	45	59	747	61	280	53	0.0037
T-2	31	41	474	39	252	47
Nodes
N0	63	84	1068	88	412	78	<0.0001
N1	9	12	126	10	107	20
NX	3	4	24	2	11	2

UDS, undifferentiated sarcoma; B/P, Bladder/Prostate

^*Includes GI/liver, retroperitoneum, pelvis, chest wall

^#Includes paratesticular