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Table 1 Baseline sociodemographic and clinical characteristics of patients with fibromyalgia by treatment group

From: Effectiveness of cognitive behaviour therapy for the treatment of catastrophisation in patients with fibromyalgia: a randomised controlled trial

Sociodemographic variables

Cognitive behaviour therapy group

(N= 57)

RPT group

(N= 56)

TAU group

(N= 55)

Statistics

Females, n (%)

54 (94.7%)

52 (92.9%)

53 (96.4%)

X2 = 0.674

    

df = 3

    

P = 0.714

Mean age, years (± SD)

46.35 (6.71)

47.12 (6.25)

47.04 (6.53)

F = 0.240

    

df = 165

    

P = 0.787

Marital status, n (%)

   

X2 = 0.279

    

df = 4

    

P = 0.991

   Married or in a relationship

40 (70.2%)

40 (71.4%)

37 (67.3%)

 

   Single

9 (15.8%)

9 (16.1%)

10 (18.2%)

 

   Separated or divorced

8 (14%)

7 (12.5%)

8 (14.5%)

 

   Widowed

0 (0%)

0 (0%)

0 (0%)

 

Ethnic group, n (%)

   

P = 1

   European

57 (100%)

57 (100%)

57 (100%)

 

   Living arrangement, n (%)

   

X2 = 1.481

    

df = 8

    

P = 0.993

   Living alone

4 (7.0%)

4 (7.1%)

6 (10.9%)

 

Living with spouse or

partner

8 (14.0%)

9 (16.1%)

8 (14.5%)

 

Living with offspring

and/or spouse/partner

34 (59.6%)

30 (53.6%)

31 (56.4%)

 

   Living with other relatives

5 (8.8%)

7 (12.5%)

5 (9.1%)

 

   Other

6 (10.5%)

6 (10.7%)

5 (9.1%)

 

Educational level, n (%)

   

X2 = 1.578

    

df = 4

    

P = 0.813

   Illiterate

0 (0%)

0 (0%)

0 (0%)

 

   Primary school

23 (40.4%)

23 (41.1%)

28 (50.9%)

 

   Secondary school

23 (40.4%)

22 (39.3%)

18 (32.7%)

 

   University

11 (19.3%)

11 (19.6%)

9 (16.4%)

 

Employment status, n (%)

   

X2 = 1.295

    

df = 8

    

P = 0.996

   Unemployed

19 (29.8%)

15 (26.8%)

15 (27.3%)

 

   Paid employment

9 (15.8%)

11 (19.6%)

9 (16.4%)

 

On sick leave from paid

employment

13 (22.8%)

12 (21.4%)

14 (25.5%)

 

   Retired/pensioner

7 (12.3%)

6 (10.7%)

8 (14.5%)

 

   Permanent disability

11 (19.3%)

12 (21.4%)

9 (16.4%)

 

Income

   

X2 = -10.04

    

df = 4

    

P = 0.40

   < MS (600€/month)

15 (26.3%)

15 (26.8%)

27 (49.1%)

 

   1 to 2 MS

24 (42.1%)

23 (41.1%)

20 (36.4%)

 

   > 2 to 4 MS

18 (31.6%)

18 (32.1%)

8 (14.5%)

 

   > 4 MS

0 (0%)

0 (0%)

0 (0%)

 

Clinical variables

    

Mean years since

diagnosis (± SD)

12.91 (7.15)

11.23

(3.85)

11.69

(4.02)

F = 1.544

    

df = 165

    

P = 0.217

Preference for

psychotherapy, n (%)

28 (49.1%)

26 (46.4%)

27 (49.1%)

X2 = 0.107

    

df = 2

    

P = 0.948

Comorbid major

depressive disorder, n (%)

27 (47.4%)

26 (46.4%)

30 (54.5%)

X2 = 0.874

    

df = 2

    

P = 0.646

   Sexual abuse, n (%)

4 (7.0%)

7 (12.5%)

11 (14.5%)

X2 = 1.70

    

df = 2

    

P = -0.427

Currently engaged in

litigation, n (%)

17 (29.8%)

12 (21.4%)

16 (29.1%)

X2 = 1.23

    

df = 2

    

P = 0.539

  1. MS = minimum salary; RPT = recommended pharmacological treatment; TAU = treatment as usual group.