Table 2: Area Under the Curve (AUC) at various serum dilutions, generated from ROC analysis on 130 serum samples from positive melioidosis (n=45) and normal control (n=85). The highest AUC was observed in dilution of 1:320

Sample (n=130) Dilution Area Under the Curve (AUC) 95% Confidence Interval
Lower Bound Upper Bound
1:80 0.917 0.876 0.958
1:160 0.958 0.933 0.984
1:320 0.970 0.947 0.993
1:640 0.932 0.897 0.968
1:1280 0.873 0.813 0.933
1:2560 0.852 0.791 0.913
1:5120 0.776 0.709 0.844
1:10240 0.634 0.550 0.718
1:20480 0.594 0.515 0.674
1:40960 0.498 0.415 0.581
1:81920 0.524 0.442 0.605