Table 2 |
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|
Comparison of perceptions of dyspnea between non-smokers and smokers |
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|
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 |
|
|
|||
|
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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|
Kanezaki et al. Cough 2010 6:1 doi:10.1186/1745-9974-6-1 |
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