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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

From: Family history of later-onset breast cancer, breast healthy behavior and invasive breast cancer among postmenopausal women: a cohort study

  Family history of later-onset breast cancer?
Variable No
(n = 75,665)
Yes
(n = 9,979)
Age   
   50-59 years 24,892 2,757
   60-69 years 33,054 4,587
   70-79 years 17,719 2,635
Ethnicity   
   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   
   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   
   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   
   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