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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.