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Table 8. Resistance to Isoniazid with or without Rifampin Resistance in Reported TB Cases with No Previous TB by Origin: United States, 1993-2002

Year
Resistant to Isoniazid1
Resistant to Isoniazid and Rifampin1
Total Cases2
U. S.-born
Foreign-born3
Total Cases2
U. S.-born
Foreign-born3
No.
%
No.
%
No.
%
No.
%
No.
%
No.
%
1993
1,401
8.4
805
6.8
579
12.4
410
2.5
302
2.6
105
2.3
1994
1,355
8.3
709
6.4
632
12.1
352
2.2
238
2.2
109
2.1
1995
1,172
7.3
554
5.4
617
11.0
252
1.6
168
1.6
84
1.5
1996
1,136
7.4
494
5.2
639
11.3
206
1.3
104
1.1
101
1.8
1997
1,080
7.5
437
5.0
639
11.2
155
1.1
76
0.9
79
1.4
1998
1,012
7.5
366
4.7
644
11.3
131
1.0
55
0.7
75
1.3
1999
904
7.1
284
4.0
618
11.0
128
1.0
39
0.6
89
1.6
2000
893
7.5
270
4.3
620
11.0
121
1.0
38
0.6
83
1.5
2001
806
7.1
245
4.4
560
9.6
116
1.0
34
0.6
82
1.4
2002
778
7.5
197
4.0
574
10.6
121
1.2
37
0.8
83
1.5
1Isolates may be resistant to other drugs.
2Includes persons of unknown country of birth.
3Includes 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, the U.S. Virgin Islands, and U.S. minor and outlying Pacific islands.
Note:  Data for all years updated through March 28, 2003.
More than 85% of all cases in each group had drug susceptibility test results reported for an initial isolate.
See Surveillance Slides #18, #19, #20, and #21.

 


Released October 2008
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