Table 2.
Comparison of outcomes at 12 week follow-up
| Intervention (mean score (standard deviation), no) | Comparison (adjusted mean difference (95% CI), P)* | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Routine care | Booklet self management with telephone support | Booklet self management only | Routine care versus booklet self management with telephone support | Routine care versus booklet self management only | |||||||
| Baseline | 12 weeks | Baseline | 12 weeks | Baseline | 12 weeks | ||||||
| Vertigo symptom scale-short form | 13.7 (10.7), n=98 | 10.5 (8.7), n=98 | 12.9 (8.9), n=85 | 8.3 (7.9), n=85 | 12.2 (7.9), n=92 | 9.1 (7.6), n=92 | −1.79 (−3.69 tο 0.11), P=0.064 | −0.59 (−2.45 tο1.27), P=0.532 | |||
| Patients reporting subjective improvement | — | 40/107 (37)† | — | 57/100 (57)† | — | 62/105 (59)† | 2.25 (1.28 to 3.94)‡, P=0.005 | 2.41 (1.39 tο 4.20)‡, P=0.002 | |||
| Vertigo balance subscale | 8.3 (6.7), n=98 | 5.7 (5.1), n=98 | 7.5 (6.1), n=85 | 4.6 (5.2), n=85 | 7.7 (5.7), n=92 | 5.0 (5.1), n=92 | −0.74 (−1.98 tο 0.51), P=0.246 | −0.46 (−1.67 tο 0.75), P=0.454 | |||
| Autonomic anxiety subscale | 5.4 (5.0), n=98 | 4.8 (4.5), n=98 | 5.4 (4.4), n=85 | 3.7 (3.9), n=85 | 4.4 (3.6), n=92 | 4.1 (3.8), n=92 | −1.11 (−2.03 tο −0.20), P=0.017 | −0.08 (−1.00 tο 0.82), P=0.869 | |||
| Dizziness handicap inventory | 32.9 (18.4), n=96 | 28.2 (18.7), n=96 | 33.1 (19.7), n=85 | 26.2 (21.3), n=85 | 33.0 (17.7), n=92 | 26.2 (18.6), n=92 | −2.25 (−5.98 tο 1.47), P=0.234 | −2.06 (−5.74 tο 1.61), P=0.269 | |||
| Hospital anxiety and depression scale | |||||||||||
| Anxiety | 6.91 (4.30), n=97 | 6.3 (4.13), n=97 | 6.80 (4.18), n=85 | 5.79 (4.27), n=85 | 6.62 (3.93), n=92 | 6.00 (4.17), n=92 | −0.46 (−1.21 tο 0.29), P=0.228 | −0.12 (−0.88 tο 0.65), P=0.763 | |||
| Depression | 4.23 (3.42), n=97 | 4.03 (3.44), n=97 | 4.12 (3.22), n=85 | 3.92 (3.56), n=85 | 4.26 (3.47), n=92 | 3.77 (3.54), n=92 | −0.02 (−0.66 tο 0.62), P=0.954 | −0.28 (−0.93 tο 0.37), P=0.396 | |||
| EQ-5D | 0.79 (0.22), n=94 | 0.79 (0.27), n=94 | 0.75 (0.27), n=84 | 0.80 (0.24), n=84 | 0.78 (0.24), n=89 | 0.82 (0.19), n=89 | 0.04 (−0.02 tο 0.10), P=0.156 | 0.04 (−0.02 tο 0.09), P=0.179 | |||
*All analyses adjusted for baseline levels of the stratification variable, the vertigo symptom scale-short form, and for baseline levels of the dependent variable.
†Data are reporting/total number of patients (%).
‡Data are odds ratio (95% confidence interval).