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. 2016 Jun 16;7:940. doi: 10.3389/fmicb.2016.00940

Table 3.

Single-peak analysis for the discrimination of C. haemulonii sensu stricto and C. haemulonii variety vulnera.

Peak (m/z) ClinProToolsTM FlexAnalysisTM


AUC1 Dave2 PWKW3 PAD4 Ave15 Ave2 AUC6 Cut-off6 Sensitivity (%) Specificity (%)
5106 0.95 1.82 <0.0001 <0.0001 10.46 17.88 0.81 2.77 96.5 74.86
5670 0.93 1.94 <0.0001 <0.0001 16.65 18.85 0.90 3.01 94.77 77.05
6878 0.92 3.51 <0.0001 <0.0001 12.89 15.53 0.95 2.89 92.44 94.54
13750 0.96 1.51 <0.0001 <0.0001 5.09 59.01 0.98 6.04 94.19 96.17
14046 0.95 0.27 <0.0001 0.00335 23.37 26.06 0.77 2.01 70.35 77.60

Peaks with the best performances according to ClinProToolsTM and FlexAnalysisTM softwares.

1AUC, area under the curve; 2Dave, difference between the maximal and the minimal average peak area/ intensity of the groups; 3PWKW, p-value of Wilcoxon/Kruskal–Wallis test (range: 0–1; 0 = good); 4PAD: p-value of Anderson–Darling test, <0.05 indicates data not normally distributed; gives information about normal distribution (range: 0–1; 0 = not normal distributed); 5Ave, area/intensity average of a group from C. haemulonii sensu stricto (1) and C. haemulonii var. vulnera (2); 6AUCs and signal-to-noise cutoff values were obtained from ROC curve constructed by SPSS Version 18.0 with the using of FlexAnalysis.