Comparative analysis of the classical resistive parameters obtained from the control group and asbestos-exposed workers: Respiratory system resistance (R0; Figure A), mean resistance (Rm, Figure B), resistance in 4 Hz (R4; Figure C) and slope of respiratory resistance (S; Figure D).

<p>The top and the bottom of the box plot represent the 25th- to 75th-percentile values, while the circle represents the mean value, and the bar across the box represents the 50th-percentile value. The whiskers outside the box represent the 10th-to 90th-percentile values.</p

Mean respiratory resistance (A) and reactance (B) curves as a function of frequency of the control group and asbestos-exposed workers.

<p>Mean respiratory resistance (A) and reactance (B) curves as a function of frequency of the control group and asbestos-exposed workers.</p

Comparative analysis of the parameters obtained from the fractional-order model in the control group and asbestos-exposed workers: Inertance (L; A), alpha coefficient (α; B), compliance (C; C), beta coefficient (β; D), damping (G; E), elastance (H; F) and hysteresivity (G).

<p>Comparative analysis of the parameters obtained from the fractional-order model in the control group and asbestos-exposed workers: Inertance (L; A), alpha coefficient (α; B), compliance (C; C), beta coefficient (β; D), damping (G; E), elastance (H; F) and hysteresivity (G).</p

Analysis of the diagnostic potential of the extended RIC parameters in detecting respiratory alterations in workers exposed to asbestos.

<p>Analysis of the diagnostic potential of the extended RIC parameters in detecting respiratory alterations in workers exposed to asbestos.</p

Errors in the integer and fractional-order models studied in control individuals and patients exposed to asbestos.

<p>Errors in the integer and fractional-order models studied in control individuals and patients exposed to asbestos.</p

Correlation analysis between the classical forced oscillation, eRIC and FrOr parameters and spirometry results.

<p>Correlation analysis between the classical forced oscillation, eRIC and FrOr parameters and spirometry results.</p

Analysis of the clinical potential of the fractional-order parameters in detecting respiratory alterations in workers exposed to asbestos.

<p>Analysis of the clinical potential of the fractional-order parameters in detecting respiratory alterations in workers exposed to asbestos.</p

Biometric, spirometric and plethysmographic parameters of the studied subjects.

<p>Biometric, spirometric and plethysmographic parameters of the studied subjects.</p

ROC curves, AUCs and the 95% confidence interval for the most accurate parameters observed in the classical analysis (Z4; AUC = 0.840), for the eRIC model (Rp; AUC = 0.831) and for the FrOr model (L; AUC = 0.998).

<p>ROC curves, AUCs and the 95% confidence interval for the most accurate parameters observed in the classical analysis (Z4; AUC = 0.840), for the eRIC model (Rp; AUC = 0.831) and for the FrOr model (L; AUC = 0.998).</p

Electrical representation of a two-compartment model used to analyze respiratory impedance.

<p>Resistance, inductance and capacitance are the analogs of mechanical resistance, inertance and compliance, respectively. R is analogous to central airway resistance and Rp describes peripheral resistance, I is associated with lung inertance and C with alveolar compliance. This analysis also evaluated the total resistance (Rt = R+Rp), which included the effects of central and peripheral airways.</p