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Table 2 Comparison of perceptions of dyspnea between non-smokers and smokers

From: Perception of urge-to-cough and dyspnea in healthy smokers with decreased cough reflex sensitivity

 

Non-smokers

Smokers

P- value

Number

14

14

 

R = 10 (point)

2.3 ± 1.0

1.9 ± 1.3

n.s.

R = 20 (point)

3.1 ± 1.4

2.9 ± 1.5

n.s.

R = 30 (point)

4.4 ± 1.5

4.8 ± 1.8

n.s.

Sum (point)

9.7 ± 3.8

9.8 ± 4.8

n.s.

Slope (point • L/g)

0.14 ± 0.05

0.15 ± 0.05

n.s

  1. Data are mean ± S.D. R = 10, R = 20 and R = 30 indicates the Borg score at R = 10, R = 20 and R = 30 cmH2O/L/s, respectively. Sum indicates the summation of Borg scores at R = 10, R = 20 and R = 30 cmH2O/L/s. Slope indicates the linear regression slope when estimated Borg scores were plotted against the corresponding values of resistive loads. P-values were calculated by the Mann-Whitney U test. n.s. denotes not significant.
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Cough

ISSN: 1745-9974