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Table 3 Automated CALSA vs. FRI

From: Exploring the link between a novel approach for computer aided lung sound analysis and imaging biomarkers: a cross-sectional study

 

FRI

 

iVaw (mL)

iRaw (kPa*s, log)

Air trapping (%)

E/I ratio (log)

100–200 Hz

P = 0.318

P = 0.337

P = 0.061

200–400 Hz

P = 0.067

P = 0.897

↗,P = 0.007*

400–800 Hz

P = 0.447

P = 0.912

P = 0.075

800–1600 Hz

↗,P = 0.017*

P = 0.332

P = 0.082

Crackle count (sqrt)

Full cycle

↘,P = 0.002*

↗,P < 0.001*

↗,P < 0.001*

Inspiration

↘,P = 0.001*

↗,P = 0.003*

↗,P < 0.001*

Expiration

↘,P = 0.010*

↗,P = 0.002*

↗,P = 0.001*

  1. P-values of the mixed-effects models are presented. Abbreviations: ↗, positive association; ↘, negative association; E/I ratio, expiration-to-inspiration sound power ratio; iVaw, airway volume; iRaw, airway resistance; sqrt, square root; *, P < 0.05.
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Respiratory Research

ISSN: 1465-993X

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