Skip to main content

Table 2 Sample characteristics over all measurement time points and statistical parameters (mean ± standard deviation); n.d. = not done

From: Mindfulness-and body-psychotherapy-based group treatment of chronic tinnitus: a randomized controlled pilot study

   Intervention group (df = 15) Control group (df = 16) Intervention vs. control group (df = 31) Time by group interaction effect (df = 3,93)
Questionnaires      
Tinnitus Questionnaire screening 34.6 ± 16.7 38.5 ± 14.7 t = 0.7; p = 0.480 F = 2.2; p = 0.094
week 7 26.4 ± 13.6 35.8 ± 15.5 t = 1.8; p = 0.077
week 9 22.9 ± 13.0 33.7 ± 15.2 t = 2.2; p = 0.036
week 24 26.5 ± 16.3 33.1 ± 16.6 t = 1.2; p = 0.257
week 7 vs. baseline t = −4.3; p < 0.001 t = −1.4; p = 0.182  
week 9 vs. baseline t = −5.4; p < 0.001 t = −2.5; p = 0.023  
  week 24 vs. baseline t = −3.1; p = 0.008 t = −2.7; p = 0.015   
Tinnitus Handicap Inventory screening 40.9 ± 21.7 47.1 ± 17.5 T = 0.9; p = 0.373 F = 4.4; p = 0.006
week 7 29.3 ± 17.1 44.8 ± 19.9 T = 2.4; p = 0.022
week 9 26.3 ± 17.4 41.4 ± 20.0 T = 2.3; p = 0.027
week 24 27.3 ± 19.9 41.3 ± 21.1 T = 2.0; p = 0.058
week 7 vs. baseline t = −4.2; p < 0.001 t = −1.3; p = 0.225  
week 9 vs. baseline t = −7.4; p < 0.001 t = −3.3; p = 0.004  
  week 24 vs. baseline t = −5.5; p < 0.001 t = −2.3; p = 0.037   
Beck Depression Inventory screening 11.4 ± 8.4 12.3 ± 6.9 t = 0.4; p = 0.732 F = 4.4; p = 0.006
week 7 8.7 ± 7.6 12.5 ± 6.6 t = 1.5; p = 0.135
week 9 6.3 ± 4.8 12.1 ± 6.7 t = 2.9; p = 0.007
week 24 7.6 ± 5.7 13.3 ± 8.7 t = 2.2; p = 0.035
week 7 vs. baseline t = −2.6; p = 0.019 t = 0.4; p = 0.718  
week 9 vs. baseline t = −3.8; p = 0.002 t = −0.2; p = 0.841  
  week 24 vs. baseline t = −2.5; p = 0.024 t = 0.8; p = 0.455   
Numeric rating scales      
loudness screening 5.9 ± 2.5 6.7 ± 2.1 n.d. F = 1.9; p = 0.135
week 7 5.3 ± 2.8 6.6 ± 2.4 n.d.
week 9 5.1 ± 2.6 6.8 ± 2.1 n.d.
week 24 5.1 ± 2.7 7.0 ± 2.3 n.d.
week 7 vs. baseline n.d. n.d.  
week 9 vs. baseline n.d. n.d.  
  week 24 vs. baseline n.d. n.d.   
annoyance screening 6.2 ± 3.1 7.4 ± 2.3 t = 1.3; p = 0.225 F = 2.3; p = 0.087
week 7 5.0 ± 2.7 6.9 ± 2.4 t = 2.2; p = 0.037
week 9 4.6 ± 2.2 7.4 ± 2.1 t = 3.6; p = 0.001
week 24 5.4 ± 2.6 7.2 ± 2.5 t = 2.1; p = 0.045
week 7 vs. baseline t = −2.3; p = 0.037 t = −1.6; p = 0.110  
week 9 vs. baseline t = −2.5; p = 0.025 t = 0  
  week 24 vs. baseline t = −1.5; p = 0.154 t = −0.4; p = 0.683   
discomfort screening 7.1 ± 2.8 7.6 ± 2.0 n.d. F = 1.9; p = 0.142
week 7 5.3 ± 2.8 7.1 ± 2.3 n.d.
week 9 5.5 ± 2.7 7.4 ± 1.8 n.d.
week 24 5.6 ± 2.9 7.3 ± 1.9 n.d.
week 7 vs. baseline n.d. n.d.  
week 9 vs. baseline n.d. n.d.  
  week 24 vs. baseline n.d. n.d.   
distractibility screening 6.4 ± 2.8 6.6 ± 2.6 n.d. F = 1.9; p = 0.132
week 7 5.7 ± 3.0 6.8 ± 3.1 n.d.
week 9 5.3 ± 2.8 7.2 ± 2.1 n.d.
week 24 5.6 ± 2.7 7.2 ± 2.8 n.d.
week 7 vs. baseline n.d. n.d.  
week 9 vs. baseline n.d. n.d.  
  week 24 vs. baseline n.d. n.d.   
unpleasantness screening 6.2 ± 2.8 7.0 ± 2.2 n.d. F = 1.1; p = 0.370
week 7 5.4 ± 2.7 6.9 ± 2.5 n.d.
week 9 5.4 ± 2.5 7.0 ± 2.2 n.d.
week 24 5.4 ± 2.4 7.4 ± 2.0 n.d.
week 7 vs. baseline n.d. n.d.  
week 9 vs. baseline n.d. n.d.  
  week 24 vs. baseline n.d. n.d.