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Table 7 ROC cutoff analysis for histamine, DAO and chymase between the groups

From: Estimation of serum levels of mast cells-related chymase, histamine and diamine oxidase in oral submucous fibrosis- a preliminary report

Molecule

Groups

Cutoff

Sensitivity

Specificity

PPV

NPV

AUC

AUC labeling

Histamine

(ng/ml)

Control vs. Chewers

1.091

100%

0%

50%

NA

0.178

Poor

Control vs. OSMF

1.58

100%

100%

100%

100%

1

Excellent

Chewers vs. OSMF

1.12

92.31%

100%

100%

92.86%

0.994

Excellent

DAO

(ng/ml)

Control vs. Chewers

0.259

53.85%

84.62%

77.88%

64.71

0.707

Moderate

Control vs. OSMF

0.084

84.62%

23.08%

52.38%

60%

0.364

Poor

Chewers vs. OSMF

0.556

38.46%

100%

100%

61.9%

0.615

Moderate

Chymase

(pg/ml)

Control vs. Chewers

22.32

92.31%

23.08%

54.55%

75%

0.334

Poor

Control vs. OSMF

14.19

100%

0%

50%

NA

0.00

Poor

Chewers vs. OSMF

19.45

100%

0%

50%

NA

0.00

Poor