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Table 7. Resistance to Isoniazid with or without Rifampin Resistance in Reported TB Cases with No Previous TB by Origin: United States, 1993-2000

Year
Resistant to Isoniazid¹
Total Cases² U.S.-born Foreign-born³
No. % No. % No. %
1993 1,400 8.4 804 6.8 579 12.4
1994 1,355 8.3 709 6.4 632 12.1
1995 1,171 7.3 554 5.4 615 11.0
1996 1,138 7.4 496 5.2 639 11.3
1997 1,082 7.5 436 5.0 640 11.2
1998 1,012 7.5 366 4.7 644 11.3
1999 904 7.1 284 4.1 618 11.0
2000 851 7.5 261 4.4 587 11.0
  1. Isolates may be resistant to other drugs.
  2. Includes persons of unknown country of birth.
  3. Includes 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.

Note: Data for all years updated through April 17, 2001.

More than 85% of all cases in each group had drug susceptibility test results reported for an initial isolate.

See Surveillance Slide #14.

Resistant to Isoniazid and Rifampin¹
Total Cases² U.S.-born Foreign-born³
Year No. % No. % No. %
1993 410 2.5 302 2.6 105 2.3
1994 352 2.2 238 2.2 109 2.1
1995 252 1.6 168 1.6 84 1.5
1996 206 1.3 104 1.1 101 1.8
1997 156 1.1 75 0.9 80 1.4
1998 130 1.0 55 0.7 74 1.3
1999 128 1.0 39 0.6 89 1.6
2000 120 1.1 38 0.6 82 1.5

  1. Isolates may be resistant to other drugs.
  2. Includes persons of unknown country of birth.
  3. Includes 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.

Note: Data for all years updated through April 17, 2001.

More than 85% of all cases in each group had drug susceptibility test results reported for an initial isolate.

See Surveillance Slide #15.

Return to 2000 Surveillance Report

 


Released October 2008
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