Table 1.

Histologic Classification of Tumors by Demographic and Clinical Characteristics, GOG-210 Trial Participants, 2003–2007, N=3,434¹

	Type I		Type II
	Grade 1–2 Endometrioid	Grade 3 Endometrioid	Serous	Carcinosarcoma	Clear cell	Mixed epithelial with serous or clear cell components	Other malignant tumors	p-value4
	(n=2,244)	(n=354)	(n=321)	(n=141)	(n=77)	(n=42)2	(n=250)3
	%	%	%	%	%		%
Age, years								<0.001
54 or younger	28.5	19.8	6.6	10.6	9.1	9.5	18.4
55–59	23.0	22.9	11.2	12.1	13.0	19.0	17.2
60–64	16.9	15.8	22.1	17.7	22.1	14.3	19.2
65–69	12.9	13.8	19.3	22.0	19.5	23.8	15.2
70 or older	18.7	27.7	40.8	37.6	36.4	33.3	30.0
Median	59.6	61.9	67.4	66.8	66.1	66.6	63.8
Race								<0.001
White	91.2	89.3	77.3	71.6	81.8	92.9	86.0
Black	4.8	9.3	19.9	22.7	11.7	4.8	11.2
Other	3.2	0.8	2.2	2.8	5.2	2.4	2.4
Unknown	0.8	0.6	0.6	2.8	1.3	0.0	0.0
Grade								<0.001
1	59.2	0.0	0.0	0.7	0.0	2.4	18.8
2	40.8	0.0	0.0	0.7	0.0	2.4	3.3
3	0.0	100.0	100.0	4.3	100.0	16.7	36.7
Not graded	0.0	0.0	0.0	94.3	0.0	78.6	40.0
Stage								<0.001
I	84.3	65.5	48.9	52.5	55.8	57.1	59.2
II	6.3	7.3	6.2	7.8	18.2	9.5	10.4
III	8.4	20.1	30.5	28.4	20.8	21.4	23.2
IV	1.0	7.1	14.3	11.4	5.2	11.9	7.2

¹Five endometrioid cases were not graded

²Mixed epithelial include: mixed serous/endometrioid (n=26), mixed clear cell/endometrioid (n=11), mixed serous/clear cell (n=5)

³Other malignant tumors include: mixed epithelial not otherwise specified (n=190), undiffferentiated carcinoma (n=20), mucinous adenocarcinoma (n=14), de-differentiated carcinoma (n=12), other carcinoma (n=12), squamous cell carcinoma (n=3), small cell carcinoma (n=2), unknown (n=2), granulosa cell tumor (n=1)

⁴Chi-square p-value