Centre for Operational Research, International Union Against Tuberculosis and Lung Disease (The Union), Paris, France.
Department of Operational Research, The Union South-East Asia (USEA), New Delhi, India.
J Epidemiol Glob Health. 2019 Dec;9(4):233-242. doi: 10.2991/jegh.k.190812.002.
Community-level benefits of screening for active tuberculosis (TB) disease remain uncertain. Project Axshya (meaning free of TB) conducted advocacy, communication, social mobilization, and active case finding among vulnerable/marginalized populations of India. Among 15 districts of Jharkhand state, the project was initiated in 36 subdistrict level administrative units - tuberculosis units (TUs) in a staggered manner between April 2013 and September 2014, and continued till the end of 2015. Seven TUs did not implement the project. We assessed the relative change in the quarterly TB case finding indicators ( = 4) after inclusion of a TU within the project. By fitting four multilevel models (mixed-effects maximum likelihood regression using random intercept), we adjusted for secular (over previous five quarters) and seasonal trends, baseline differences within Axshya and non-Axshya TUs, and population size and clustering within districts and within TUs. After inclusion of a TU within the project, we found a significant increase [95% confidence interval (CI)] in TU-level presumptive TB sputum examination rate, new sputum-positive TB Case Notification Rate (CNR), sputum-positive TB CNR, and all forms TB CNR by 12 (5.5, 18.5), 1.1 (0.5, 1.7), 1.3 (0.6, 2.0), and 1.2 (0.1, 2.2) per 100,000 population per quarter, respectively. Overall, the project resulted in an increase (95% CI) in sputum examination and detection of new sputum-positive TB, sputum-positive TB and all forms of TB patients by 22,410 (10,203, 34,077), 2066 (923, 3210), 2380 (1162, 3616), and 2122 (203, 4059), respectively. This provides evidence for implementing project Axshya over and above the existing passive case finding.
社区层面主动筛查结核病(TB)疾病的获益仍不确定。Axshya 项目(意为无 TB)在印度弱势群体/边缘人群中开展了宣传、沟通、社会动员和主动病例发现工作。在贾坎德邦的 15 个县中,该项目于 2013 年 4 月至 2014 年 9 月间以交错的方式在 36 个分区级行政单位 - 结核病单位(TUs)启动,并持续到 2015 年底。7 个 TU 没有实施该项目。我们评估了在一个 TU 纳入项目后,季度结核病发现指标的相对变化(=4)。通过拟合四个多水平模型(使用随机截距的混合效应最大似然回归),我们调整了前五个季度的季节性(季节性)和季节性趋势、Axshya 和非 Axshya TU 内的基线差异、以及区内和 TU 内的人口规模和聚类。在 TU 纳入项目后,我们发现 TU 级疑似结核病痰检率、新痰阳性结核病例报告率(CNR)、痰阳性结核 CNR 和所有形式的结核 CNR 显著增加[95%置信区间(CI)]分别为 12(5.5,18.5)、1.1(0.5,1.7)、1.3(0.6,2.0)和 1.2(0.1,2.2)/每 10 万人每季度。总体而言,该项目导致痰检和新痰阳性结核病、痰阳性结核病和所有形式结核病患者的发现率分别增加(95%CI)22410(10203,34077)、2066(923,3210)、2380(1162,3616)和 2122(203,4059)。这为在现有的被动病例发现之外实施 Axshya 项目提供了证据。