Table 5.
Questionnaire survey factors related to Niigata persistent postural-perceptual dizziness questionnaire improvement at 2 mo
|
Variables
|
Estimate
|
SE
|
t
value
|
P
value
|
| (Intercept) | 1.28 | 0.22 | 5.59 | 0.00002c |
| DHI-E | 0.03 | 0.01 | 2.56 | 0.01a |
| DHI-F | -0.02 | 0.01 | -1.86 | 0.07 |
| HADS-A | -0.05 | 0.01 | -3.30 | 0.003b |
| PSQI | -0.05 | 0.01 | -2.80 | 0.01a |
a
P < 0.05.
b
P < 0.01.
c
P < 0.001.
Residual standard error = 0.27 (df = 19); multiple R-squared = 0.51; adjusted R-squared = 0.41; F-statistic = 5.02 (df, 4 and 19); P value = 0.006; Akaike information criterion = -57.4. DHI-E: Dizziness handicap index–emotional; DHI-F: Dizziness handicap index–functional; HADS-A: Hospital anxiety and depression scale-anxiety; PSQI: Pittsburg sleep quality index.