Table 3 Secondary outcome measures
From: Testing the effects of gentle vibrotactile stimulation on symptom relief in fibromyalgia
All patients (n = 63) | Baseline (Bvs) | Vibrotac. S. (VS) | Baseline (Bsham) | Sham | (Bvs − VS) > (Bsham − Sham) |
Unrefreshed Sleep | 69.6 ± 17.8 | 55.1 ± 22.5 | 67.1 ± 18.5 | 60.3 ± 23.4 | t = 2.2 p = 0.033 |
Daily Activity Impact | 70.6 ± 17.9 | 67.9 ± 16.9 | 69.7 ± 17.8 | 69.8 ± 18.6 | t = 1.7 p = 0.098 |
Anxiety (HADS) | 10.9 ± 4.4 | 10.1 ± 3.9 | 11.0 ± 3.9 | 10.9 ± 4.3 | t = 1.4 p = 0.164 |
Depression (HADS) | 9.3 ± 4.7 | 9.3 ± 4.7 | 9.3 ± 4.4 | 9.3 ± 4.6 | t = − 0.6 p = 0.955 |
FIQ | 61.9 ± 16.2 | 54.8 ± 17.3 | 60.7 ± 17.9 | 58.1 ± 18.0 | t = 1.9 p = 0.069 |
Vibrotactile S. first (n = 33) | Baseline (B1) | Vibrotac. S. (VS) | Baseline (B2) | Sham | (B1 − VS) > (B2 − Sham) |
Unrefreshed Sleep | 70.8 ± 16.8 | 52.7 ± 23.8 | 61.9 ± 20.6 | 61.9 ± 24.2 | t = 4.4 p = 0.0001 |
Daily Activity Impact | 68.9 ± 19.4 | 64.8 ± 18.6 | 66.6 ± 19.0 | 67.7 ± 20.3 | t = 2.4 p = 0.020 |
Anxiety (HADS) | 10.7 ± 4.7 | 10.0 ± 3.8 | 10.5 ± 4.2 | 10.7 ± 4.4 | t = 1.1 p = 0.261 |
Depression (HADS) | 9.8 ± 4.8 | 9.4 ± 4.5 | 9.0 ± 4.8 | 9.6 ± 4.7 | t = 1.5 p = 0.148 |
FIQ | 63.1 ± 14.0 | 54.1 ± 18.2 | 57.5 ± 19.0 | 58.3 ± 18.7 | t = 3.4 p = 0.002 |
Sham first (n = 30) | Baseline (B1) | Sham | Baseline (B2) | Vibrotac. S. (VS) | (B2 − VS) > (B1 − Sham) |
Unrefreshed Sleep | 72.8 ± 14.1 | 58.6 ± 22.7 | 68.4 ± 19.1 | 57.6 ± 21.0 | t = − 0.6 p = 0.527 |
Daily Activity Impact | 73.2 ± 15.9 | 71.1 ± 16.7 | 72.4 ± 16.2 | 71.3 ± 14.3 | t = − 0.7 p = 0.502 |
Anxiety (HADS) | 11.6 ± 3.4 | 11.2 ± 4.2 | 11.2 ± 4.2 | 10.2 ± 4.0 | t = 0.8 p = 0.427 |
Depression (HADS) | 9.8 ± 3.9 | 8.9 ± 4.6 | 8.8 ± 4.6 | 9.1 ± 4.9 | t = − 1.4 p = 0.171 |
FIQ | 64.2 ± 16.3 | 57.8 ± 17.5 | 60.7 ± 18.4 | 55.6 ± 16.5 | t = − 0.4 p = 0.753 |
(B1 − VS) > (B1 − Sham) | (B2 − VS) > (B2 − Sham) | ||||
Unrefreshed Sleep | t = 1.0 p = 0.336 | t = 2.2 p = 0.029 | |||
Daily Activity Impact | t = 1.4 p = 0.162 | t = 1.3 p = 0.198 | |||
Anxiety (HADS) | t = 0.3 p = 0.759 | t = 1.8 p = 0.082 | |||
Depression (HADS) | t = −0.6 p = 0.549 | t = 0.5 p = 0.595 | |||
FIQ | t = 0.7 p = 0.462 | t = 1.6 p = 0.111 | |||