PREVALENCE, INCIDENCE AND DETERMINANTS OF QUANTIFERON-POSITIVITY IN SOUTH AFRICAN SCHOOLCHILDREN

PREVALENCE, INCIDENCE AND DETERMINANTS OF QUANTIFERON-POSITIVITY IN SOUTH AFRICAN SCHOOLCHILDREN
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南非学童中定量阳性的患病率、发病率和决定因素

DOI:
10.1101/2024.03.11.24304073
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发表时间:
2024
期刊:
--
影响因子:
--
通讯作者:
Stewart J
Stewart J
中科院分区:
--
文献类型:
--
作者:
Stewart J

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背景结核病控制需要了解和阻断结核病传播。我们描述了南非开普敦儿童结核病感染的患病率、发病率和危险因素。方法我们报告了一项针对生活在结核病高负担社区的小学生进行的大型试验的横断面基线和前瞻性发病率数据。流行感染定义为基线评估的 QuantiFERON™-TB Gold Plus (QFT-Plus) 阳性。 3 年后,在基线时 QFT-Plus 阴性的患者中测量了随后向 QFT-Plus 阳性的转化。多变量逻辑回归模型检查了与结核感染相关的因素。结果基线时QuantiFERON阳性(患病率:22.6%,95% CI 20.9-24.4)与年龄增加(每增加一年aOR 1.24,95% CI 1.15-1.34)和参与者一生中家庭接触结核病独立相关(aOR 1.87,95% CI) 1.46–2.40)。第 3 年 QFT-Plus 转换(12.2%,95% CI 10.5-14.0;年感染率:3.95%)与家庭暴露于指示性结核病例相关(aOR 2.74,95% CI 1.05-7.18)。 结论 在该人群中,QFT 诊断的结核感染率仍然很高。与家庭结核病暴露的密切相关性强化了接触者追踪、预防性治疗和传染病早期治疗以减少社区传播的重要性。
BACKGROUNDTB control requires the understanding and disruption of TB transmission. We describe prevalence, incidence and risk factors associated with childhood TB infection in Cape Town, South Africa.METHODSWe report cross-sectional baseline and prospective incidence data from a large trial among primary school children living in high TB burden communities. Prevalent infection was defined as QuantiFERON™-TB Gold Plus (QFT-Plus) positivity as assessed at baseline. Subsequent conversion to QFT-Plus positivity was measured 3 years later among those QFT-Plus-negative at baseline. Multivariable logistic regression models examined factors associated with TB infection.RESULTSQuantiFERON-positivity at baseline (prevalence: 22.6%, 95% CI 20.9–24.4), was independently associated with increasing age (aOR 1.24 per additional year, 95% CI 1.15–1.34) and household exposure to TB during the participant’s lifetime (aOR 1.87, 95% CI 1.46–2.40). QFT-Plus conversion at year 3 (12.2%, 95% CI 10.5–14.0; annual infection rate: 3.95%) was associated with household exposure to an index TB case (aOR 2.74, 95% CI 1.05–7.18).CONCLUSIONRates of QFT-diagnosed TB infection remain high in this population. The strong association with household TB exposure reinforces the importance of contact tracing, preventative treatment and early treatment of infectious disease to reduce community transmission.
南非高负担乡镇结核病感染率随着年龄的增长而变化。
DOI: --
发表时间: 2010
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