tion (Comstock, 2000). In contrast, the overall case rate for the other states dropped from 8.5 to 7.4 cases per 100,000.

In 1999, case rates among states ranged from 0.5 per 100,000 population in Vermont to 15.5 per 100,000 population in Hawaii. Among metropolitan areas, rates varied from less than 1.3 per 100,000 population in Omaha to 17.7 per 100,000 population in New York City and 18.2 per 100,000 population in San Francisco. Data from government surveys and databases as well as other sources fairly consistently show that rates of active tuberculosis vary by race, ethnicity, age, and country of origin. Table 5-1 shows that such demographic variation persists despite the decline in case rates during recent years. As reported in Chapter 1, over 40 percent of tuberculosis cases reported in U.S. in 1999 involved people born in other countries with individuals from Mexico, the Philippines, and Vietnam accounting for nearly half of the cases among foreign-born persons.

TABLE 5-1. Tuberculosis Case Rates per 100,000 Population, United States, 1989–1999

Year

1989

1992

1993

1999

Race/ethnicitya

White, non-Hispanic

4.0

4.0

3.6

2.2

Black, non-Hispanic

29.5

31.7

29.1

16.8

Hispanicb

19.3

22.4

20.6

12.4

American Indian/Alaska Native

19.8

16.2

14.6

11.8

Asian/Pacific Islander

39.8

46.3

44.5

35.3

Unknown/missing

0

0

1

0

Country of originc

U.S. born

NAd

8.2

7.4

4.0

Foreign borne

NA

34.2

33.6

29.2

Unknown

2

1

2

1

Agea

0–14 years

2.5

3.1

3.0

1.8

15–24

4.8

5.5

5.1

4.0

25–44

10.6

12.7

11.6

7.3

45–64

12.4

13.4

12.5

8.2

65+

19.7

18.7

17.8

11.7

Not stated

0

0

0

0

aDenominators for computing these rates were based on official post-census estimates from the U.S. Census Bureau.

bPersons of Hispanic origin may be of any race.

cDenominators for computing these rates were obtained from Quarterly Estimates of the United States Foreign-born and Native Resident Populations: April 1, 1990 to July 1, 1999 (www.census.gov/population/estimates/nation/nativity/fbtab001.txt)

dNA equals data not available.

eIncludes persons born outside the United States, American Samoa, the Federated States of Micronesia, Guam, the Republic of the Marshall Islands, Midway Island, the Commonwealth of the Northern Mariana Islands, Puerto Rico, the Republic of Palau, U.S. Minor Outlying Islands, U.S. Miscellaneous Pacific Islands, and the U.S. Virgin Islands.

SOURCE: CDC, 2000b (excerpted from Tables 2, 3, and 4).



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