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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  
  1. FIQ Fibromyalgia Impact Questionnaire, HADS Hospital Anxiety and Depression Scale