Performance of screening tools for undiagnosed tuberculosis* (N = 867).

Data are percentages unless otherwise indicated. *Undiagnosed tuberculosis defined as participants fulfilling the case definition of definite or probable tuberculosis. † Denominator = 867 unless otherwise indicated (10 participants on tuberculosis treatment at enrolment, 39 “possible” tuberculosis cases, 3 participants without sputum cultures at enrolment and 62 with missing chest radiographs at enrolment were excluded). ∫Any CXR abnormality = active tuberculosis 89 (61.0%); previous tuberculosis 23 (15.8%); trauma/bullets 16 (11.0%); abnormal cardiac silhouette 9 (6.2%); other 9 (6.2%). ‡Any of cough >2 weeks, night sweats or unintentional weight loss. §Any of current cough, fever, unintentional weight loss or night sweats (WHO symptom screen for people with HIV [25]). NPV = negative predictive value; PPV = positive predictive value; WHO = World Health Organization; CXR = Chest radiograph; TB = tuberculosis.

除非另有说明，所有数据均以百分比形式呈现。
*未诊断肺结核（Undiagnosed tuberculosis）：指符合确诊或疑似肺结核病例判定标准的受试者。
†分母（Denominator）除非另有说明均为867（排除了10名入组时已接受肺结核治疗的受试者、39例“疑似”肺结核病例、3名入组时未留取痰培养标本的受试者以及62名入组时缺失胸部X线片资料的受试者）。
∫任意胸部X线片（CXR）异常情况：活动性肺结核89例（61.0%）、既往肺结核23例（15.8%）、外伤/子弹异物16例（11.0%）、心脏轮廓异常9例（6.2%）及其他异常9例（6.2%）。
‡满足以下任意一项症状者：咳嗽时长超过2周、夜间盗汗或非计划性体重下降。
§满足以下任意一项症状者（世界卫生组织（WHO）HIV感染者症状筛查标准[25]）：现症咳嗽、发热、非计划性体重下降或夜间盗汗。
NPV=阴性预测值（negative predictive value）；PPV=阳性预测值（positive predictive value）；WHO=世界卫生组织（World Health Organization）；CXR=胸部X线片（Chest radiograph）；TB=肺结核（tuberculosis）。