Table 2.: Measurement variation of dyspnea scores between the two resistive loads tests.

Loads (cm H2O/L/S) 1° Test 2° Test  SE  Kw  Kw 95%CI  ICC  ICC 95%CI
Mean ± SD Median (IR) Mean± SD Median (IR)
@ 0 0.9 ± 1.3 0 (2.0) 1 ± 1 0 (2.0) 0.080 0.78 0.62- 0.94 0.88 0.70-0.96
6.7 1.9 ± 1.7 2 (2.5) 2 ± 2 0 (3.0) 0.117 0.46 0.23 - 0.69 0.69 0.31-0.88
15 2.9 ± 2.5 3 (3.3) 2 ± 3 2 (3.0) 0.105 0.58 0.38 - 0.79 0.90 0.73-0.96
25 4 ± 3.0 4 (3.0) 2 ± 2 2 (3.0) 0.112 0.33 0.11 - 0.55 0.63 0.19-0.87
46.7 4 ± 2.0 5 (5.0) 3 ± 2 3 (4.0) 0.089 0.57 0.39 - 0.74 0.93 0.79-0.98
67 5 ± 3.0 7 (5.0) 4 ± 3 4 (5.0) 0.096 0.56 0.37 - 0.74 0.80 0.48-0.93
78 5 ± 3.0 7 (5.0) 4 ± 3 4 (5.0) 0.078 0.73 0.58 - 0.89 0.95 0.83-0.98
@ 0 2 ± 2.0 1 (1.0) 1.1 ± 1.6 0.5 (2.0) 0.162 0.52 0.20 - 0.84 0.74 0.34-0.91

SD = standard deviation; IR= interquartile range; SE= standard error; CI = 95% confidence interval; Kw = weighted Kappa coefficient of agreement; ICC = intraclass correlation coefficient for average measures.