Table 1

Demographic characteristics of the study samples

CharacteristicsStudy samples
General public without breast cancer (n = 756)Women diagnosed with breast cancer (n = 260)
n%a95% CIn%a95% CI
Age (yr)
 20–2912416.413.8–19.00
 30–3918524.421.3–27.541.50.6–2.4
 40–4916722.019.0–25.04517.414.7–20.1
 50–5911515.212.6–17.86625.522.4–28.6
 60–698911.79.4–14.06525.122.0–28.6
 70+7810.38.1–12.57930.527.2–33.8
Total household income
 <$30,00020031.928.6–35.28139.135.6–42.6
 $30,000–$49,99917327.624.4–30.85727.524.3–30.7
 $50,000+25440.637.1–44.16933.329.9–36.7
Occupationb
 Paid work46561.558.0–65.08633.029.6–36.4
 Unemployed212.81.6–4.0114.22.8–5.6
 Retired12917.014.3–19.712949.545.9–53.1
 No paid work21428.425.2–31.64015.512.9–18.1
Geographic location
 Rural8712.410.0–14.83915.310.9–19.7
 Urban61587.685.2–90.021984.780.3–89.1
Family history of breast cancer
 None55776.073.0–79.015460.256.7–63.7
 At least 1 first- or second-degree relative17624.021.0–27.010239.836.3–43.3
MeanSDMean95% CIMeanSD95% CI
Mean age45.615.644.5–46.762.112.560.6–63.6
Mean number of years of education14.63.014.4–14.813.83.213.4–14.2
  • a Percentages are based on responses and do not incorporate missing data.

  • b Multiple responses for occupation causes the sum for the “percentage of cases” to be >100. “Unemployed” refers to those without paid work who are currently seeking employment. No paid work includes those who are homemakers, caring for family, volunteering, attending school, disabled, or on maternity leave.