Table 2a.

Prevalence (%) of U.S. women of five-year absolute risks (%) of breast cancer by race and age

	≥1.67	95% CI	≥2.00	95% CI	≥3.00	95% CI	≥4.00	95% CI
All Women
30–39 years	0.0	0.0–0.2	0.0	0.0–0.1	0.0	NA	0.0	NA
40–49 years	4.1	3.6–4.8	1.5	1.2–1.9	0.3	0.2–0.5	0.1	0.0–0.2
50–59 years	13.3	12.2–14.5	8.5	7.6–9.4	1.7	1.4–2.2	0.8	0.5–1.1
60–69 years	36.4	34.5–38.3	18.0	16.5–19.5	7.1	6.2–8.1	2.1	1.7–2.7
70–84 years	44.1	42.4–45.8	21.8	20.5–23.3	10.0	9.0–11.1	2.5	2.0–3.0
White Non-Hispanic
30–39 years	0.1	0.0–0.2	0.0	0.0–0.1	0.0	NA	0.0	NA
40–49 years	5.2	4.5–6.0	1.9	1.5–2.5	0.3	0.2–0.6	0.1	0.0–0.2
50–59 years	15.5	14.2–16.9	10.0	9.1–11.1	2.2	1.7–2.8	1.0	0.7–1.4
60–69 years	39.1	37.0–41.2	20.6	18.9–22.5	8.7	7.6–9.9	2.6	2.1–3.2
70–84 years	47.3	45.4–49.1	25.0	23.4–26.6	11.8	10.6–13.1	2.9	2.4–3.6
Black Non-Hispanic
30–39 years	0.0	NA§	0.0	NA	0.0	NA	0.0	NA
40–49 years	1.2	0.6–2.1	0.1	0.0–0.5	0.0	NA	0.0	NA
50–59 years	8.2	6.1–10.8	4.7	2.9–7.1	0.5	0.1–1.6	0.0	NA
60–69 years	36.4	30.2–43.1	6.7	3.9–10.5	1.2	0.3–3.3	0.8	0.1–3.1
70–84 years	42.3	36.8–47.9	7.4	4.7–11.1	1.6	0.4–4.0	0.6	0.0–3.1
Hispanic
30–39 years	0.0	NA	0.0	NA	0.0	NA	0.0	NA
40–49 years	0.5	0.2–1.1	0.3	0.0–0.8	0.0	NA	0.0	NA
50–59 years	2.1	1.2–3.5	0.6	0.2–1.5	0.1	0.0–0.7	0.0	NA
60–69 years	10.3	6.6–15.2	6.8	3.9–11.0	1.0	0.3–2.5	0.6	0.1–1.8
70–84 years	6.9	4.2–10.6	3.8	2.1–6.3	0.1	0.0–1.1	0.1	0.0–1.1

^§Not available