Reliability of Chest Wall Mobility and Its Correlation with Lung Functions in Healthy Nonsmokers, Healthy Smokers, and Patients with COPD
Table 3
Intrarater and interrater reliability for upper and lower chest expansions.
ICC agreement
95% CI
Mean diff._AB (SD)
SEM consistency
LOA
SDC
Examiner A
Upper chest expansion
0.90
0.83–0.94
−0.33 (0.80)
0.88
1.23–1.89
2.43
Lower chest expansion
0.86
0.78–0.91
−0.01 (1.36)
1.41
2.65–2.67
3.90
Examiner B
Upper chest expansion
0.93
0.89–0.95
0.80 (0.08)
0.81
−0.64–0.95
2.24
Lower chest expansion
0.85
0.77–0.90
−0.15 (1.05)
1.45
1.90–2.20
4.01
First assessment
Upper chest expansion
0.83
0.64–0.91
−0.59 (1.03)
1.18
1.42–2.60
3.27
Lower chest expansion
0.84
0.74–0.90
−0.38 (1.37)
1.42
2.30–3.06
3.93
Second assessment
Upper chest expansion
0.78
0.66–0.86
−0.18 (1.27)
1.30
2.30–2.66
3.60
Lower chest expansion
0.82
0.70–0.89
−0.52 (1.52)
1.59
2.45–3.49
4.40
95% CI = 95% confidence interval; ICC agreement = intraclass correlation coefficients. Mean diff_AB = mean difference between examiner A and B; SEM = standard error of measurement; LOA = limits of agreements; SDC = smallest detectable change.
