评估加纳去中心化结核检测的影响:模拟模型
Parastu Kasaie1, Lad Dombrowski2, Jeffrey Pennington1
1Department of Epidemiology, Johns Hopkins University, Baltimore, Maryland, United States of America.
PLOS global public health
|November 17, 2025
概括
加纳的分散结核病 (TB) 分子测试改善了诊断和治疗. 扩大Xpert MTB/RIF测试可以通过减少未经测试的样本和误诊来挽救生命.
科学领域:
- 公共卫生 公共卫生
- 流行病学 流行病学
- 卫生系统研究 卫生系统研究
背景情况:
- 加纳的结核病 (TB) 诊断服务的地理难以获得性阻碍了及时诊断.
- 分散的结核病分子检测可以改善病例通知和治疗启动,特别是在服务不足的地区.
研究的目的:
- 预测分散结核病检测在加纳国家一级的流行病学影响.
- 评估将Xpert MTB/RIF测试扩展到地区级设施的影响.
主要方法:
- 开发了加纳结核病诊断系统和治疗级联的基于个体的模拟.
- 该模型使用2019-2022年地区卫生信息管理系统 (DHIMSII) 数据进行校准.
- 与当前的诊断网络对比,评估了两个去中心化场景.
主要成果:
- 在基线下,26%的样本未经测试,超过30%的诊断依赖于临床判断,35%的错误阳性.
- 将Xpert分散到地区医院,将未经测试的样本减少到20%,假阳性减少到32%,到2030年每百万可能挽救43条生命.
- 所有设施的完全去中心化可以消除未经测试的样本,将错误阳性减少到25%,并到2030年拯救每百万人180人的生命.
结论:
- 分散Xpert MTB/RIF测试显著提高了诊断准确性和结核病治疗结果.
- 在加纳实现分散结核病诊断的全部好处,广泛实施至关重要.
- 这一战略提高了结核病例的发现,减少了不必要的治疗,最终挽救了生命.
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