From 1990 to 1992, the incidence rate has leveled off at approximately 110 cases/100,000 women for all races (Kosary et al., 1996).

Incidence and mortality rates have varied by race and age. In 1992, the age-adjusted incidences in Caucasian and African-American women were 113.1 versus 101.0 cases per 100,000 women, respectively (Kosary et al., 1996). For Caucasian women, mortality rates changed little in the 1970s and 1980s, declined slightly after 1990, and are currently lower than for African-American women. Mortality rates for African-American women have increased steadily since the 1970s. In 1992, the age-adjusted mortality rates for Caucasian and African-American women were 26.0 and 31.2 deaths per 100,000 women, respectively, (Kosary et al., 1996). Table 2-1 outlines age-specific incidence and mortality rates of invasive breast cancer in Caucasian and African-American women in the United States between 1988 and 1992. It is significant to note that between the ages of 20 and 44, African-American women have both a higher incidence and a higher mortality rate than Caucasian women.

TABLE 2-1. Age-Specific Incidence of Breast Cancer and Mortality Rates of Women by Race in the United States, 1988-1992a

 

Caucasian Women

African-American

Women

All Races

Age at Diagnosis

Incidence

Mortality

Incidence

Mortality

Incidence

Mortality

0–4

0.0

0.0

0.0

0.0

0.0

0.0

5–9

0.0

0.0

0.0

0.0

0.0

0.0

10–14

0.0

0.0

0.2

0.0

0.1

0.0

15–19

0.0

0.0

0.2

0.0

0.1

0.0

20–24

0.9

0.1

1.9

0.3

1.0

0.1

25–29

7.1

1.0

10.5

2.5

7.5

1.2

30–34

24.5

4.3

32.0

7.9

25.2

4.7

35–39

63.4

11.1

66.8

20.1

63.8

12.0

40–44

125.4

22.1

138.2

34.4

125.4

23.0

45–49

202.6

35.8

184.7

51.9

197.8

37.0

50–54

241.7

52.6

213.8

71.2

232.7

53.8

55–59

287.5

69.8

254.8

85.2

278.0

70.4

60–64

360.0

87.6

284.7

96.3

343.3

87.0

65–69

431.1

104.2

335.8

107.1

412.1

103.0

70–74

469.1

120.6

352.5

116.5

451.0

118.8

75–79

502.5

136.9

372.6

127.1

483.9

134.9

80–84

492.6

158.0

390.3

150.8

477.4

156.1

≥85

443.7

195.4

361.5

191.4

432.5

193.8

a Rates are per 100,000.

SOURCE: Kosary et al., 1996.



The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement