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Table 2 Baseline impulse oscillometry (IOS), fractional exhaled nitric oxide (FENO) and exhaled carbon monoxide (eCO) measurements in young subjects with mild asthma (MA) and healthy smokers (HS), in experimental (smoking) and control sessions separately

From: Immediate effects of cigar smoking on respiratory mechanics and exhaled biomarkers; differences between young smokers with mild asthma and otherwise healthy young smokers

 

MA (N = 22)

HS (N = 25)

 

Mean (SD)

Mean (SD)

P*

Z5 [kPa/(L/s)]

 Exrerimental group

0.41 (0.13)

0.30 (0.06)

<0.001

 Control group

0.42 (0.13)

0.31 (0.07)

0.001

R5 [kPa/(L/s)]

 Exrerimental group

0.39 (0.12)

0.28 (0.06)

<0.001

 Control group

0.40 (0.13)

0.29 (0.07)

0.001

R10 [kPa/(L/s)]

 Exrerimental group

0.36 (0.11)

0.26 (0.05)

<0.001

 Control group

0.33 (0.11)

0.27 (0.07)

0.001

R20 [kPa/(L/s)]

 Exrerimental group

0.35 (0.10)

0.26 (0.05)

<0.001

 Control group

0.36 (0.10)

0.27 (0.08)

0.002

fdr [kPa/(L/s)]

 Exrerimental group

0.04 (0.06)

0.03 (0.03)

0.407

 Control group

0.04 (0.06)

0.02 (0.04)

0.102

fres (Hz)

 Exrerimental group

11.84 (3.35)

10.48 (2.75)

0.133

 Control group

12.83 (4.73)

10.31 (2.43)

0.024

X5 [kPa/(L/s)]

 Exrerimental group

−0.12 (0.05)

−0.09 (0.03)

0.014

 Control group

−0.13 (0.05)

−0.10 (0.03)

0.015

X10 [kPa/(L/s)]

 Exrerimental group

−0.02 (0.05)

0.0004 (0.03)

0.070

 Control group

−0.02 (0.05)

0.004 (0.03)

0.026

X20 [kPa/(L/s)]

 Exrerimental group

0.08 (0.05)

0.09 (0.05)

0.325

 Control group

0.09 (0.08)

0.10 (0.05)

0.643

 AX (kPa/L)

 Exrerimental group

0.42 (0.48)

0.23 (0.17)

0.072

 Control group

0.47 (0.49)

0.23 (0.15)

0.029

FENO (ppb)

 Exrerimental group

22.50(15.6)

12.00 (6.9)

0.004

 Control group

19.84 (14.6)

10.57 (4.7)

0.004

eCO (ppm)

 Exrerimental group

3.68 (2.01)

4.40 (2.31)

0.265

 Control group

4.14 (2.12)

3.84 (2.27)

0.647

  1. *Student’s t-test