Epidemiology of childhood tuberculosis in the United States, 1993-2001: The need for continued vigilance
Epidemiology of childhood tuberculosis in the United States, 1993-2001: The need for continued vigilance
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DOI:
10.1542/peds.114.2.333
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发表时间:
2004-08-01
期刊:
影响因子:
8
通讯作者:
Moore, M
中科院分区:
文献类型:
--
作者:
Nelson, LJ;Schneider, E;Moore, M
Objective. To describe trends and highlight epidemiologic and clinical characteristics of childhood tuberculosis ( TB) in the United States.Methods. All verified TB cases reported to the national TB surveillance system from 1993 to 2001 were included. A child was defined as a person younger than 15 years.Results. A total of 11 480 childhood TB cases were reported. Case rates (TB cases/100 000 population) in all children declined from 2.9 (n = 1663) in 1993 to 1.5 (n = 931) in 2001. Among children, those who were younger than 5 years had the highest rate. California, Texas, and New York accounted for 48% of all childhood TB cases. In 2001, TB case rates were higher for foreign-born (12.2) than US-born children (1.1). Hispanic and non-Hispanic black children accounted for nearly three quarters of all cases. Twenty-four percent of children with TB were foreign-born children, with the largest number originating from Mexico (39.8%), the Philippines (8.6%), and Vietnam (5.7%). Most children had evidence of pulmonary TB disease (78.9%). Among culture-positive cases without previous TB, drug resistance to at least isoniazid was 7.3% and to isoniazid and rifampin was 1.6%. In 1999, 82.9% of children received directly observed therapy for at least part of their treatment and 94.8% completed treatment.Conclusions. Although the overall TB case number among children is declining in the United States, certain groups of children (eg, younger children, racial and ethnic minorities, foreign-born) are at higher risk for TB. As the United States moves toward the elimination of TB, future efforts should endeavor to prevent all cases of childhood TB.