Table 1. Characteristics of studies included in the CBCSC.

Study	Design	Diagnosis years	Ages at diagnosis	Race/ethnicity	Location	Data collection	Language-data collection	Breast cancer cases included
Asian American Breast Cancer Study (AABCS)(50)	Population-based case-control	1995-2001	25-74 y	Chinese Japanese Filipinas	Los Angeles County	In-person interview	English Chinese Tagalog	1,138
Women's Contraceptive and Reproductive Experiences Study (CARE) (51)	Population-based case-control	1994-1998	35-64 y	Whites2 African Americans	Los Angeles County	In-person interview	English	1,240
San Francisco Bay Area Breast Cancer Study (SFBCS) (52)	Population-based case-control	1995-2002	35-79 y	African Americans Latinas Non-Latina (NL)Whites	San Francisco Bay Area	In-person interview	English Spanish	2,243
Life After Cancer Epidemiology Study (LACE) (41)	Cancer survivor cohort, Kaiser Permanente Northern California (KPNC)	2000-2002	18-70 y	African Americans Asians Latinas NL Whites	San Francisco Bay Area	Mail questionnaire	English	1,735
California Teachers Study (CTS) (53)	Prospective cohort of California teachers and administrators vested in the State Teachers Retirement System	1995-2005	27-96 y	African Americans Asians Latinas NL Whites	California	Mail questionnaire	English	3,855
The Multiethnic Cohort (MEC) (54)	Prospective population-based cohort, general population	1993-2007	45-75 y	African Americans Asians Latinas NL Whites	Primarily Southern California	Mail questionnaire	English Spanish	1,999