Cancer Incidence in the United States (SEER)3,

Changing Patterns
by Site Among All Races, Whites and Blacks, Males and Females

The incidence rates and trends by site for males and females, all races, white and black, for the time period 1973­1991 appear in these three charts. The data are from the SEER program of the NCI and are based on data published in the SEER Cancer Statistics Review 1973­1991: Tables and Graphs (Ries, 1994). Following are some highlights of the cancer incidence trends.

  • Incidence rates for all cancer sites combined have increased for each race-sex group: 31 percent (white males), 15 percent (white females), 34 percent (black males), and 18 percent (black females).

  • Breast cancer incidence in females increased from 88.6 per 100,000 in the early 1970s to 109.8 in the early 1990s. The incidence pattern for breast cancer varied with increases in the mid-1970s, decreases from the mid-1970s until the early 1980s, increases from the early 1980s until the late 1980s, and a leveling off of rates in the last couple of years.

  • Lung cancer incidence is about 50 percent higher for black males than white males, but similar for white and black females.

  • Lung cancer incidence increased approximately 125 percent among both black and white females. However, the rate of increase in 1975­79 of 6.2 percent per year slowed to 2.0 percent per year in 1987­91 for females of all races.

  • Male lung cancer incidence rates declined by 1.7 percent per year for white males and 0.9 percent per year for black males over the most recent 5-year period, 1987­91. Between 1973 and 1991, a statistically significant decline in lung cancer incidence was limited to men under 55 years of age.

  • Colon/rectal cancer incidence rates increased since 1973 but may have peaked for white males and females. Between 1987 and 1991, there were significant declines in incidence for both white males and white females. For black females, there was a nonsignificant decline between 1987 and 1991, and for black males, there was a nonsignificant increase.

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3 Source: SEER Program, NCI, based on an approximate 10 percent sample of the U.S. population