Figure 1. Sensitivity and specificity of symptom and chest radiography screening in population based TB screening (10 prevalence surveys [9], [10], [13], [16], [18], [19], [28], [30], [31], [32] including our report and 1 pre-mass IPT screening [20]), reported since the year 2000.

Panel A summarizes screening for ‘any TB symptom’ or combinations of 3 or more symptoms. Panel B summarizes screening for cough of ≥2 or ≥3 weeks, and panel C summarizes chest radiography screening. *Kenya-1, Kenya-2 etc. refers to the strategy numbers described in Table 1 and Table 4. †includes also fever >1 month or chest pain. MMR = Mass Miniature Radiography.