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Table 1 Sample Characteristics and Central Constructs for CFS, ISF, and Well Group

From: Patterns of control beliefs in chronic fatigue syndrome: results of a population-based survey

 

Groups

Variable

CFS (n = 113)

 

ISF (n = 264)

 

Well (n = 124)

  

p

  
 

n (%)

n (%)

n (%)

    

Sex

 Female

92 (81.4)

201 (76.1)

 

93 (75)

  

.44

  

 Male

21 (18.6)

63 (23.9)

 

31 (25)

     

Race

 White

84 (74.3)

196 (74.2)

 

95 (76.6)

  

.87

  

 Non White

29 (25.7)

68 (25.8)

 

29 (23.4)

     
 

M (SD)

95% CI

M (SD)

95% CI

M (SD)

95% CI

F

p

η 2

post-hoc comparison

Age (years)

 Mean (SE)

44.29 (.95)

42.41–46.17

43.11 (.95)

41.85–44.37

44.52 (.94)

42.66–46.39

1.01

.37

0.00

 

 Range

18–59

 

18–59

 

19–59

     

Control beliefs

 Internal control

7.19 (.56)

6.07–8.31

8.60 (.39)

7.85–9.36

10.17 (.54)

9.11–11.23

7.00

.004

0.03

C = I; C < W; I = W

 Competence

6.17 (.65)

4.88–7.47

7.35 (.44)

6.49–8.22

12.17 (.51)

11.16–13.18

28.56

<.001

0.10

C = I < W

 Powerful others

−10.19 (.78)

−11.74– − 8.64

−10.25 (.49)

−11.21– − 9.29

−12.09 (.64)

−13.36– − 10.82

2.63

.28

0.01

 

 Chance

−10.80 (.77)

−12.33– − 9.27

−11.76 (.50)

−12.75– − 10.77

−12.89 (.68)

−14.23– − 11.55

2.01

.56

0.01

 

Personality

 Neuroticism

1.98 (.07)

1.84–2.12

1.67 (.04)

1.58–1.75

.92 (.04)

0.83–1.01

84.01

<.001

0.25

C > I > W

 Extraversion

2.04 (.05)

1.93–2.15

2.24 (.03)

2.18–2.31

2.66 (.04)

2.57–2.75

41.34

<.001

0.14

C < I < W

 Openness

2.27 (.04)

2.19–2.35

2.19 (.03)

2.13–2.26

2.29 (.05)

2.20–2.38

1.87

.16

0.01

 

 Agreeableness

2.79 (.04)

2.71–2.88

2.79 (.03)

2.74–2.84

3.06 (.03)

2.99–3.13

17.01

<.001

0.06

C = I < W

 Conscientiousness

2.71 (.05)

2.61–2.81

2.82 (.03)

2.76–2.88

3.07 (.04)

2.99–3.15

16.56

<.001

0.06

C = I < W

Coping

 Confrontive

12.27 (.35)

11.59–12.96

11.05 (.21)

10.63–11.47

9.80 (.26)

9.28–10.32

15.69

<.001

0.06

C = I > W

 Distancing

11.58 (.33)

10.92–12.24

11.45 (.21)

11.04–11.87

10.41 (.26)

9.90–10.93

5.00

.056

0.02

 

 Self-Controlling

16.35 (.39)

15.57–17.12

15.72 (.27)

15.20–16.25

14.64 (.38)

13.89–15.39

4.96

.056

0.02

 

 Seeking Support

12.81 (.36)

12.11–13.52

12.64 (.26)

12.12–13.16

12.28 (.35)

11.59–12.98

0.54

>1.00

0.00

 

 Responsibility

7.98 (.30)

7.39–8.57

7.20 (.17)

6.86–7.54

6.23 (.22)

5.80–6.67

11.56

<.001

0.04

C = I; C > W; I = W

 Escape-Avoidance

14.25 (.45)

13.35–15.15

13.27 (.26)

12.76–13.77

10.91 (.26)

10.39–11.43

22.04

<.001

0.08

C = I > W

 Problem Solving

14.26 (.39)

13.48–15.03

14.18 (.25)

13.68–14.68

13.91 (.41)

13.11–14.71

0.24

>1.00

0.00

 

 Reappraisal

15.16 (.47)

14.23–16.09

14.97 (.34)

14.30–15.65

14.47 (.46)

13.55–15.39

0.56

>1.00

0.00

 
  1. Note. Higher scores indicate stronger beliefs, M mean, SD standard deviation, 95% CI 95% confidence intervals for the means, ONEWAY (Analysis of Variance), Kruskal-Wallis for sex and race with F and post-hoc comparison (Scheffé) for continuous outcomes (significance level Bonferroni adjusted); Bonferroni-adjusted p; effect size η 2= between-groups effect/total amount of variance