Table 2.
Method error and reliability for the repeated measurements in acoustic rhinometry tested in an identical way in standing position and in sitting position. Mean difference: the second measurement subtracted from the first measurement
|
Mean difference |
Standard deviation |
Method error (s(i)) |
Reliability (Houston) |
|
|---|---|---|---|---|
| Standing position, right nostril | ||||
| Calculated resistance (cm H2O/L/min) | -0.477 | 6.969 | 0.055 | 1 |
| Volume (cm3) | -0.013 | 3.033 | 0.001 | 1 |
| Minimum cross-sectional area (MCA, cm2) | 0.005 | 0.177 | 0.001 | 1 |
| Distance to MCA (cm) | -0.058 | 1.445 | 0.007 | 1 |
| Standing position, left nostril | ||||
| Calculated resistance (cm H2O/L/min) | -1.328 | 4.791 | 0.152 | 0.999 |
| Volume (cm3) | 0.173 | 1.539 | 0.02 | 1 |
| Minimum cross-sectional area (MCA, cm2) | 0.027 | 0.116 | 0.003 | 0.999 |
| Distance to MCA (cm) | -0.114 | 0.552 | 0.013 | 0.999 |
| Sitting position, right nostril | ||||
| Calculated resistance (cm H2O/L/min) | -0.396 | 3.593 | 0.048 | 1 |
| Volume (cm3) | 0.594 | 1.934 | 0.072 | 0.999 |
| Minimum cross-sectional area (MCA, cm2) | 0.035 | 0.135 | 0.004 | 0.999 |
| Distance to MCA (cm) | -0.156 | 0.936 | 0.019 | 1 |
| Sitting position, left nostril | ||||
| Calculated resistance (cm H2O/L/min) | -3.053 | 15.616 | 0.37 | 0.999 |
| Volume (cm3) | 0.57 | 1.837 | 0.069 | 0.999 |
| Minimum cross-sectional area (MCA, cm2) | 0.043 | 0.149 | 0.005 | 0.999 |
| Distance to MCA (cm) | -0.29 | 0.793 | 0.035 | 0.999 |
MCA = minimum cross-sectional areas.