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Table 1 Sample characteristics for the whole group and statistical parameters (mean ± standard deviation)

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

 

Intervention group

Control group

Statistics

n

18

18

 

gender (male/ female)

11/7

8/10

χ2 = 1.0; df = 1; p = 0.317

age

49.6 ± 8.8

51.7 ± 16.0

t = 0.5; df = 34; p = 0.629

tinnitus duration

100.5 ± 119.1

142.3 ± 116.2

t = 1.1; df = 33; p = 0.300

number of previous treatments

3.4 ± 2.0

3.7 ± 2.1

t = 0.5; df = 33; p = 0.653

laterality (left, both/central, right)

6, 6, 5

8, 3, 7

χ2 = 1.6; df = 2; p = 0.451

Questionnaires

   

Tinnitus Questionnaire

34.1 ± 15.8

37.4 ± 14.9

t = 0.7; df = 34; p = 0.512

Tinnitus Handicap Inventory

41.0 ± 20.4

45.9 ± 17.7

t = 0.8; df = 34; p = 0.448

Beck Depression Inventory

11.1 ± 8.1

11.8 ± 7.0

t = 0.3; df = 34; p = 0.793

Numeric rating scales

   

loudness

5.7 ± 2.5

6.5 ± 2.2

t = 1.0; df = 34; p = 0.328

annoyance

7.2 ± 2.3

5.9 ± 3.0

t = 1.4; df = 33; p = 0.158

discomfort

6.9 ± 2.8

7.3 ± 2.3

t = 0.5; df = 34; p = 0.600

distractibility

6.2 ± 2.7

6.4 ± 2.7

t = 0.3; df = 34; p = 0.806

unpleasantness

5.9 ± 2.8

7.1 ± 2.2

t = 1.4; df = 34; p = 0.169

Other (no, yes)

   

temporomandibular joint disorder

12, 5

14, 4

χ2 = 0.2; df = 1; p = 0.627

neck pain

7, 10

6, 12

χ2 = 0.2; df = 1; p = 0.631

other pain

10, 6

10, 8

χ2 = 0.2; df = 1; p = 0.681

influence of neck movement

12, 4

9, 9

χ2 = 2.2; df = 1; p = 0.134

psychiatric comorbidity

12, 5

14, 4

χ2 = 0.2; df = 1; p = 0.627