However, the performance of BCLA antigen in discriminating cyst carriage was slightly reduced compared to the BSM antigen (area under the ROC curves: 0.9256 (IC95: 0.8651–0.9861) and 0.9923 (IC95: 0.9765–1), respectively, P = 0.0365) (Hanley and McNeil, 1983) (Fig. 5G). This evidence concerns the gene SNRPB and cyst.