Fig. 3

Distribution of tests performed and test positivity across the AI-score deciles for the four countries. A Testing distribution by AI-score decile refers to the percentage of total tests performed within each AI-score decile. B Test positivity by AI-score decile shows the proportion of positive results in each AI-score decile. The decile labels (D1 to D10) represent AI-score deciles; D1–D10 for 0–0.99 in 0.1 intervals for qXR score and D1–D10 for 0–99 in 10-point intervals for CAD4TB score