Epidemiology of Culture-Negative Pulmonary Tuberculosis-Alameda County, 2010-2019.
Epidemiology of Culture-Negative Pulmonary Tuberculosis-Alameda County, 2010-2019.
复制标题
培养阴性肺结核流行病学 - 阿拉米达县,2010-2019 年。
DOI:
10.1097/phh.0000000000001715
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Chitnis,AmitS
中科院分区:
文献类型:
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作者:
Chen,Jennie;Marusinec,Rachel;Brown,Robert;Shiau,Rita;Jaganath,Devan;Chitnis,AmitS
Objective:Describe epidemiology of culture-negative PTB.Design, Setting, Participants:We utilized Alameda County TB surveillance data from 2010 to 2019. Culture-negative PTB cases met clinical but not laboratory criteria for PTB per US National Tuberculosis Surveillance System definitions. We calculated trends in annual incidence and proportion of culture-negative PTB using Poisson and weighted linear regression, respectively. We further compared demographic and clinical characteristics among culture-negative versus culture-positive PTB cases.Results:During 2010-2019, there were 870 cases of PTB, of which 152 (17%) were culture-negative. The incidence of culture-negative PTB declined by 76%, from 1.9/100 000 to 0.46/100 000 (P for trend<. 01), while the incidence of culture-positive PTB reduced by 37%(6.5/100 000 to 4.1/100 000, P for trend=. 1). Culture-negative PTB case-patients were more likely than culture-positive PTB case-patients to be younger (7.9% were children< 15 years old vs 1.1%; P<. 01), recent immigrants within 5 years of arrival (38.2% vs 25.5%; P<. 01), and have a TB contact (11.2% vs 2.9%; P<. 01). Culture-negative PTB case-patients were less likely than culture-positive PTB case-patients to be evaluated because of TB symptoms (57.2% vs 74.7%; P<. 01) or have cavitation on chest imaging (13.1% vs 38.8%; P<. 01). At the same time culture-negative PTB case-patients were less likely to die during TB treatment (2.0% vs 9.6%; P<. 01).Conclusions:The incidence of culture-negative PTB disproportionately declined compared with culture-positive TB and raises concern for gaps in detection. Expansion of screening programs for recent immigrants and TB contacts and greater recognition of risk factors may increase detection of culture-negative PTB.