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Table 5 Cutoff values of IOS parameters for the prediction of SAD in subjects with chronic respiratory symptoms and PPF (n = 209)

From: Impulse oscillometry for detection of small airway dysfunction in subjects with chronic respiratory symptoms and preserved pulmonary function

IOS parameter

Cutoff value

AUC

Sensitivity (%)

Specificity (%)

LR (+)

LR (−)

Youden index

P value

R5

0.30

0.659

81.0

44.3

1.45

0.43

0.25

0.002

R5–R20

0.015

0.646

76.2

47.3

1.45

0.50

0.24

0.004

AX

0.30

0.656

57.1

71.9

2.03

0.60

0.28

0.002

Fres

11.23

0.665

69.0

58.7

1.67

0.53

0.28

0.001

  1. AUC area under curve, LR likelihood ratio
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Respiratory Research

ISSN: 1465-993X

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