Table 1.

Race, ethnicity, and ovarian cancer risk factors for all subjects in the two studies

Variable	N (CGN) (CGN)	% of Total (CGN)	N (GOG)	% of Total (GOG)
Race*	17	1
Asian			16	1
Black	73	4	33	2
White	1,761	88	1,399	96
Other	120	6	10	1
Unknown/not reported	21	1	0	0
Hispanic Ethnicity	1,945	98	1,380	95
Not Hispanic or Latino
Hispanic or Latino	46	2	21	1
Unknown/not reported	57	4	0	0
Ashkenazi Jewish Descent	365	18	313	21
Yes
No	1,604	81	1,058	73
Unknown	22	1	87	6
Menopause Status	1,117	56	919	63
Pre-menopause
Post-menopause	874	44	539	37
Number of Intact Ovaries	1,862	94	1,418	97
2
1	102	5	40	3
Unknown/not reported	27	1
Hysterectomy*	246	12	84	6
Yes
No	1,715	86	1,368	94
Unknown	30	2	6	0
Ever Pregnant**	1,610	81	1,142	78
Yes
No	340	17	273	19
Unknown	41	2	43	3
Ever Use Oral Contraceptives	200	10	176	12
Yes, currently using
Yes, not currently using	1,354	68	929	64
Never used	395	20	353	24
Unknown	42	2	0	0
Ever Use Hormone Replacement** Therapy	202	10	90	6
Yes, currently using
Yes, not currently using	442	22	317	22
No	1,214	61	1,045	72
Unknown	133	7	6	0
Personal History of Breast Cancer	843	42	586	40
Yes
No	1,122	56	872	60
Unknown	26	1	0	0
Family History of Breast Cancer	1,669	84	1,190	82
Yes
No	297	15	241	17
Unknown	25	1	27	2
Family History of Ovarian Cancer	876	44	745	51
Yes
No	1,311	66	918	63
Unknown	25	1	16	1
Cohort	1,991	100	1,458	100

^*With at least one ovary intact at enrollment.

^**Percentages may not add to 100 due to rounding.