Table 3 Sensitivity (Se), specificity (Sp), area under the curve (AUC) and cut-off point of the Forced Oscillation and Spirometric parameters.

Forced Oscillation

R0

(cmH₂O/L/s)

71.4

(51.3-86.7)

75.0

(55.1-89.3)

0.75

(0.61-0.85)

2.70

S

(cmH2O/L/s²)

64.3

(44.1-81.3)

60.7

(40.6-78.5)

0.62

(0.48-0.75)

2.66

Rm

(cmH₂O/L/s)

67.9

(47.7-84.1)

67.9

(47.7-84.1)

0.72

(0.58-0.83)

2.57

fr

(Hz)

71.4

(51.3-86.7)

64.3

(44.1-81.3)

0.74

(0.61-0.85)

11.17

Xm

(cmH₂O/L/s)

78.6

(59.0-91.7)

67.9

(47.7-84.1)

0.74

(0.61-0.85)

0.42

Cdyn, rs

(L/cmH₂O)

78.6

(59.0-91.7)

67.9

(47.7-84.1)

0.75

(0.61-0.85)

0.018

Z4Hz

(cmH₂O/L/s)

75.0

(55.1-89.3)

75.0

(55.1-89.3)

0.79

(0.66-0.88)

3.58

Spirometry

FEV₁

(L)

57.1

(37.2-75.5)

60.7

(40.6-78.5)

0.58

(0.44-0.71)

3.60

FEV₁

(%)

50.0

(30.7-69.3)

42.9

(24.5-62.8)

0.50

(0.36-0.64)

105.00

FEV₁/FVC

(%)

60.7

(40.6-78.5)

60.7

(40.6-78.5)

0.59

(0.45-0.72)

85.00

FEF_25-75%

(L)

53.6

(33.9-72.5)

46.4

(27.5-66.1)

0.53

(0.40-0.67)

4.13

FEF_25-75%

(%)

50.0

(30.7-69.3)

67.9

(47.7-84.1)

0.54

(0.40-0.68)

95.00

FEF/FVC

(%)

60.7

(40.6-78.5)

60.7

(40.6-78.5)

0.55

(0.41-0.69)

94.50