Table 1 Postmenopausal women (50-79 years old) who were enrolled in the Women's Health Initiative Observational Study (1993-1998) and met eligibility criteria
| Â | Family history of later-onset breast cancer? | |
|---|---|---|
Variable | No (n = 75,665) | Yes (n = 9,979) |
Age | Â | Â |
   50-59 years | 24,892 | 2,757 |
   60-69 years | 33,054 | 4,587 |
   70-79 years | 17,719 | 2,635 |
Ethnicity | Â | Â |
   Hispanic/Latina | 3,142 | 245 |
   Black/African-American | 6,274 | 663 |
   White | 62,566 | 8,666 |
   American Indian/Alaskan Native | 349 | 38 |
   Asian/Pacific Islander | 2,279 | 230 |
   Other | 858 | 105 |
Highest educational attainment | Â | Â |
   No high school diploma | 3,990 | 452 |
   High school diploma | 12,176 | 1,653 |
   Some college/technical school | 27,447 | 3,534 |
   College degree | 31,414 | 4,263 |
Household income | Â | Â |
   Less than $35,000 | 27,624 | 3,543 |
   $35,000 to less than $75,000 | 28,151 | 3,809 |
   $75,000 or more | 14,270 | 1,874 |
Participation in breast healthy behavior | Â | Â |
   Complete participation (3/3) | 5,506 | 761 |
   Partial participation (1/3 or 2/3) | 65,542 | 8,558 |
   Complete non-participation (0/3) | 4,617 | 660 |