| DPO | 
        Cut-off titer 
                MAT | 
        AND/OR | 
        Cut-off 
                titer 
                IgM ELISA | 
        Sensitivity (%) | 
        95% CI | 
        Specificity (%) | 
        95% CI | 
       
      
        | 1-10 | 
        ≥1:80 | 
        AND | 
        ≥1:40 | 
        10.4 | 
        5.8-18.1 | 
        100.0 | 
        94.2-100.0 | 
       
      
        | ≥1:80 | 
        OR | 
        ≥1:40 | 
        33.3 | 
        24.7-43.2 | 
        90.3 | 
        80.4-95.5 | 
       
      
        | ≥1:80 | 
        AND | 
        ≥1:80 | 
        10.4 | 
        5.8-18.1 | 
        100.0 | 
        94.2-100.0 | 
       
      
        | ≥1:80 | 
        OR | 
        ≥1:80 | 
        27.1 | 
        19.2-36.7 | 
        93.5 | 
        84.6-97.5 | 
       
      
        | ≥1:160 | 
        AND | 
        ≥1:40 | 
        6.3 | 
        2.9-13.0 | 
        100.0 | 
        94.2-100.0 | 
       
      
        | ≥1:160 | 
        OR | 
        ≥1:40 | 
        31.3 | 
        22.9-41.1 | 
        96.8 | 
        89.0-99.1 | 
       
      
        | ≥1:160 | 
        AND | 
        ≥1:80 | 
        6.3 | 
        2.9-13.0 | 
        100.0 | 
        94.2-100.0 | 
       
      
        | ≥1:160 | 
        OR | 
        ≥1:80 | 
        25.0 | 
        17.4-34.5 | 
        100.0 | 
        94.2-100.0 | 
       
      
        | 11-20 | 
        ≥1:80 | 
        AND | 
        ≥1:40 | 
        90.0 | 
        79.9-95.3 | 
        98.4 | 
        91.5-99.7 | 
       
      
        | ≥1:80 | 
        OR | 
        ≥1:40 | 
        96.7 | 
        88.6-99.1 | 
        85.7 | 
        75.0-92.3 | 
       
      
        | ≥1:80 | 
        AND | 
        ≥1:80 | 
        86.7 | 
        75.8-93.1 | 
        100.0 | 
        94.2-100.0 | 
       
      
        | ≥1:80 | 
        OR | 
        ≥1:80 | 
        95.0 | 
        86.3-98.3 | 
        90.5 | 
        80.7-95.6 | 
       
      
        | ≥1:160 | 
        AND | 
        ≥1:40 | 
        81.7 | 
        70.1-89.4 | 
        100.0 | 
        94.2-100.0 | 
       
      
        | ≥1:160 | 
        OR | 
        ≥1:40 | 
        96.7 | 
        88.6-99.1 | 
        93.7 | 
        84.8-97.5 | 
       
      
        | ≥1:160 | 
        AND | 
        ≥1:80 | 
        80.0 | 
        68.2-88.2 | 
        100.0 | 
        94.2-100.0 | 
       
      
        | ≥1:160 | 
        OR | 
        ≥1:80 | 
        93.3 | 
        84.1-97.4 | 
        100.0 | 
        94.2-100.0 | 
       
      
        | >20 | 
        ≥1:80 | 
        AND | 
        ≥1:40 | 
        81.5 | 
        70.4-89.1 | 
        98.4 | 
        91.5-99.7 | 
       
      
        | ≥1:80 | 
        OR | 
        ≥1:40 | 
        95.4 | 
        87.3-98.4 | 
        85.7 | 
        75.0-92.3 | 
       
      
        | ≥1:80 | 
        AND | 
        ≥1:80 | 
        67.7 | 
        55.6-77.8 | 
        100.0 | 
        94.2-100.0 | 
       
      
        | ≥1:80 | 
        OR | 
        ≥1:80 | 
        90.8 | 
        81.3-95.7 | 
        90.5 | 
        80.7-95.6 | 
       
      
        | ≥1:160 | 
        AND | 
        ≥1:40 | 
        76.9 | 
        65.4-85.5 | 
        100.0 | 
        94.2-100.0 | 
       
      
        | ≥1:160 | 
        OR | 
        ≥1:40 | 
        93.8 | 
        85.2-97.6 | 
        93.7 | 
        84.8-97.5 | 
       
      
        | ≥1:160 | 
        AND | 
        ≥1:80 | 
        63.1 | 
        50.9-73.8 | 
        100.0 | 
        94.2-100.0 | 
       
      
        | ≥1:160 | 
        OR | 
        ≥1:80 | 
        89.2 | 
        79.4-94.7 | 
        100.0 | 
        94.2-100.0 | 
       
     
    Bold text indicates the optimal cut-off for sensitivity and specificity combinations with priority on a high specificity. |