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Table 1 Characteristics of participants and non-participants in a multifactorial comprehensive lifestyle intervention trial for patients with CVD

From: Motives for (not) participating in a lifestyle intervention trial

  Participants (n = 50) Non-participants (n = 50) 95% CI
Socio-demographic    
Sex: male 35 (70.0%) 39 (78.0%) -0.25 to 0.09
Age (mean ± SD) 60.2 ± 8.9 64.3 ± 8.3 0.72 to 7.53*
Married or living together 29 (60.0%) 38 (76.0%) -0.33 to 0.03
Level of education    
   - Low 15 (31.3%) 24 (48.0%) -0.34 to 0.03
   - Middle 15 (31.3%) 23 (46.0%) -0.32 to 0.04
   - High 18 (37.5%) 3 (6.0%) 0.16 to 0.46*
Job status    
   - Retired 17 (35.4%) 30 (60.0%) -0.42 to -0.05*
   - Working 17 (35.4%) 6 (12.0%) 0.07 to 0.39*
   - Unemployed 14 (29.2%) 14 (28.0%) -0.16 to 0.19
Ethnic minority 10 (21.3%) 6 (12.5%) -0.07 to 0.24
Distance to hospital in km (mean ± SD) 9.9 ± 7.4 12.4 ± 15.9 -2.43 to 7.42
Health-related variables    
Perceived general health    
SF36    
   - Good, very good or excellent 26 (54.2%) 28 (56.0%) -0.21 to 0.17
   - Fair or poor 22 (45.8%) 22 (44.0%) -0.17 to 0.21
EuroQol (mean ± SD) 0.73 ± 0.3 0.80 ± 0.2 -0.04 to 0.18
Clinical    
BMI (mean ± SD) 28.1 ± 5.4 27.0 ± 3.8 -2.99 to 0.73
Overweight (25<BMI < 30) 20 (40.0%) 23 (46.9%) -0.25 to 0.12
Obese (BMI > 30) 16 (32.0%) 8 (16.3%) -0.01 to 0.32
Co-morbidity diabetes 9 (18.0%) 10 (20.0%) -0.17 to 0.14
Hypertension 29 (58.0%) 30 (60.0%) -0.21 to 0.17
Behavioral variables    
Lifestyle behaviors    
Current smoker 17 (39.5%) 16 (32.0%) -0.12 to 0.26
Pack years (mean ± SD) 19.5 ± 19.3 14.7 ± 16.9 -12.32 to 2.73
Not meeting recommended levels of physical activity 33 (66.0%) 32 (65.3%) -0.27 to 0.33
Stages of behavioral change    
Pre-contemplation 2 (4.2%) 8 (16.3%) -0.25 to 0.00
Contemplation 5 (10.4%) 5 (10.2%) -0.13 to 0.13
Preparation 8 (16.7%) 4 (8.2%) -0.05 to 0.22
Action 9 (18.8%) 12 (24.5%) -0.22 to 0.11
Maintenance 24 (50.0%) 20 (40.8%) -0.10 to 0.28
  1. Statistical significance was assessed with Chi-square tests for categorical variables and t-tests for continuous variables.
  2. CI: Confidence interval.
  3. SD: Standard deviation.
  4. BMI: Body Mass Index.
  5. * P < 0.05