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  Indian J Med Microbiol
 

Figure 3: (A) ROC curve of FeNO in patients with FEV1% predicted ≥70 or 70 per cent. Curve of FeNO in patients with FEV1% predicted ≥70 per cent (n=207). AUC of FeNO in identifying asthma in this patient group was 0.801 (95% confidence interval 0.738-0.863, P <0.001); (B) ROC curve of FeNO in patients with FEV1% predicted <70 per cent (n=193). AUC of FeNO in identifying asthma in this patient group was 0.628 (95% CI 0.543-0.714, P=0.005). AUC, area under the curve; FeNO, fractional exhaled nitric oxide; FEV1, forced expiratory volume in one second; ROC curve, receiver-operating characteristic curve; CI, confidence interval.

Figure 3: (<b>A</b>) ROC curve of FeNO in patients with FEV1% predicted ≥70 or 70 per cent. Curve of FeNO in patients with FEV<sub>1</sub>% predicted ≥70 per cent (n=207). AUC of FeNO in identifying asthma in this patient group was 0.801 (95% confidence interval 0.738-0.863, <i>P</i> <0.001); (<b>B</b>) ROC curve of FeNO in patients with FEV<sub>1</sub>% predicted <70 per cent (n=193). AUC of FeNO in identifying asthma in this patient group was 0.628 (95% CI 0.543-0.714, <i>P</i>=0.005). AUC, area under the curve; FeNO, fractional exhaled nitric oxide; FEV<sub>1</sub>, forced expiratory volume in one second; ROC curve, receiver-operating characteristic curve; CI, confidence interval.