. 2020 Nov 24;10:20436. doi: 10.1038/s41598-020-77374-7

Table 3.

Predictive values of VOC analysis for different groups.

Comparison	AUC	Sensitivity	Specificity	PPV	NPV	P value
BAD versus HC	70% (49–91%)	69% (39–91%)	69% (39–91%)	69%	69%	0.042
BAD versus IBS	67% (49–85%)	85% (55–98%)	46% (27–67%)	44%	86%	0.041
IBS versus HC	95% (89–100%)	89% (70–98%)	92% (64–100%)	96%	80%	< 0.001

Comparison

AUC

Sensitivity

Specificity

PPV

NPV

P value

BAD versus HC

70%

(49–91%)

69%

(39–91%)

69%

(39–91%)

69%

0.042

BAD versus IBS

67%

(49–85%)

85%

(55–98%)

46%

(27–67%)

44%

86%

0.041

IBS versus HC

95%

(89–100%)

89%

(70–98%)

92%

(64–100%)

96%

80%

< 0.001

AUC, area under the curve; PPV, positive predictive value; NPV negative predictive value; Numbers in brackets are 95% confidence intervals.