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Table 5 Characteristics of subjects with exclusionary conditions by types of exclusions (n = 280)

From: An evaluation of exclusionary medical/psychiatric conditions in the definition of chronic fatigue syndrome

 

Type of exclusion

 
 

Med (n= 133)

Psych (n= 114)

Both (n= 33)

p-value

 

n

%

n

%

n

%

 

Sex

      

0.0143

   Female

109

81.95

75

65.79

25

75.76

 

   Male

24

18.05

39

34.21

8

24.25

 

Race

      

0.6690

   Black

48

46.09

33

28.95

10

30.30

 

   White

78

58.65

77

67.54

21

63.64

 

   Other

7

5.26

4

3.51

2

6.06

 

Residential areas

      

0.3099

   Rural

60

45.11

65

57.02

19

57.58

 

   Urban

57

42.86

35

30.70

11

33.33

 

   Metropolitan

16

12.03

14

12.28

3

9.09

 
 

Mean

SD

Mean

SD

Mean

SD

 

Duration of fatigue (months) * †

105.45

96.73

59.92

59.58

120.17

92.96

0.0003

BMI

29.27

5.68

27.94

5.38

29.55

5.10

0.115

MFI

       

General

fatigue †‡

13.10

4.55

14.69

4.18

16.15

2.99

<0.001

Physical

fatigue *‡

11.68

4.49

11.74

4.09

14.58

3.68

0.002

Reduced

activity ‡

9.54

4.19

10.11

4.41

12.55

3.88

0.002

Reduced

motivation ‡

9.95

3.86

10.71

4.33

12.88

3.57

0.001

Mental

fatigue†‡

10.83

4.39

13.05

4.32

13.85

4.24

<0.001

SF-36

       

Physical

functioning*

67.86

27.04

71.36

24.82

53.33

25.15

0.002

   Role physical ‡

31.20

40.17

27.41

36.28

9.85

23.33

0.013

   Bodily pain

54.08

26.85

53.23

26.29

42.18

28.05

0.067

Social

functioning ‡

68.80

26.72

58.44

30.87

49.24

26.51

<0.001

Mental

health†‡

71.43

18.78

56.18

24.07

46.55

19.84

<0.001

Role

emotional†‡

48.87

43.53

31.58

39.13

14.13

23.61

<0.001

   Vitality*†‡

48.83

26.81

38.03

26.50

23.03

17.59

<0.001

General

health*‡

57.67

24.09

56.48

22.33

41.18

24.19

0.001

   PCS* §

42.22

11.64

45.43

11.32

38.31

11.16

0.0040

   MCS†‡§

46.55

11.24

37.36

14.72

33.47

10.02

<0.0001

   HUI2*‡§

74.50

14.32

69.34

14.72

60.50

11.25

<0.0001

Symptom scores

       

CFS symptom

summary score ‡

23.98

20.70

30.13

21.14

37.98

21.90

0.0014

Non-CFS

symptom

summary score†‡

18.71

17.93

27.86

30.38

35.67

21.40

<0.0001

  1. * Indicates the p-value for an post-hoc comparison between both and medical types with Tukey p-adjustment less than 0.01 for multiple group comparison.
  2. † Indicates the P-value for a post hoc comparison between medcial and psychiatric types with Tukey P-adjustment less than 0.01 for multiple group comparison.
  3. ‡ Indicates the P-value for a post hoc comparison between both and psychiatric types with Tukey P-adjustment less than 0.01 for multiple group comparison.
  4. § Nichol's health utility index 2 (HUI2) [14] was included in the multivariate model because it is a linear combination of 8 SF-36 subscales and strongly correlated with Physical Component Summary (PCS) and Mental Component Summary (MCS).