The gradings of the agglutination reactions of both techniques were scored as 12, 10, 8, 5, 3, 0 for 4+, 3+, 2+, 1+ and w+ and negative, respectively. Results: The GT yielded higher scores than the CTT (p < 0.01). The overall sensitivity and specificity of the GT were 93.5 ...
Grading is performed by comparing the resistance of skin versus the resistance of this dedicated foam- like device, when applying a constant pressure with fingers. The repeatability and reproducibility of the procedure has been validated by applying analysis of variance. Abbreviations: Max, maximum; ...