Table 4.
Mean difference between standing and sitting position in acoustic rhinometry
| Mean |
Mean difference |
Standard deviation |
P-valuea | ||
|---|---|---|---|---|---|
|
Standing position |
Sitting position |
||||
| Right nostril | |||||
| Calculated resistance (cm H2O/L/min) | 5.83 | 4.81 | 1.38 | 4.894 | 0.11 |
| Volume (cm3) | 4.91 | 4.56 | 0.436 | 2.772 | 0.366 |
| Minimum cross-sectional area (MCA, cm2) | 0.41 | 0.42 | -0.003 | 0.171 | 0.929 |
| Distance to MCA (cm) | 1.85 | 1.96 | -0.049 | 0.88 | 0.745 |
| Left nostril | |||||
| Calculated resistance (cm H2O/L/min) | 6.15 | 8.65 | -2.497 | 16.607 | 0.38 |
| Volume (cm3) | 4.7 | 4.15 | 0.553 | 2.566 | 0.211 |
| Minimum cross-sectional area (MCA, cm2) | 0.37 | 0.36 | 0.019 | 0.141 | 0.421 |
| Distance to MCA (cm) | 2 | 2.13 | -0.131 | 0.736 | 0.301 |
aDifference between means, t-test. P-value was considered significant when P < 0.05.
MCA = minimum cross-sectional areas.