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Table 8 Influence of moderating variables on all the outcomes assessed, on the Fibromyalgia Impact Questionnaire and on the Global Function

From: A meta-analysis of the efficacy of fibromyalgia treatment according to level of care

 

All the outcome assessed

Fibromyalgia Impact Questionnaire

Global function

 

Std dif in means

Lower

Upper

p-value

Std dif in means

Lower

Upper

p-value

Std dif in means

Lower

Upper

p-value

Methodological quality

            

1 to 2

1,21

0.74

1.69

0.000

    

1.40

0.75

2.04

0.000

3 to 4

0.57

0.42

0.72

0.000

0.66

0.37

0.95

0.000

0.58

0.33

0.83

0.000

5 to 6

0.23

0.14

0.31

0.000

0.36

0.18

0.55

0.000

0.37

0.22

0.51

0.000

Overall

0.33

0.26

0.41

0.000

0.45

0.29

0.60

0.000

0.46

0.33

0.58

0.000

Kind of treatment

            

Pharmacological

0.42

0.32

0.53

0.000

0.59

0.29

0.89

0.000

0.54

0.33

0.74

0.000

Non-pharmacological

0.63

0.43

0.83

0.000

0.52

0.26

0.79

0.000

0.52

0.26

0.79

0.000

Overall

0.47

0.37

0.56

0.000

0.55

0.35

0.75

0.000

0.53

0.37

0.70

0.000

Length of treatment (weeks)

            

0 to 8

0.73

0.57

0.89

0.000

0.83

0.35

1.30

0.001

0.82

0.50

1.14

0.000

9 to16

0.20

0.11

0.28

0.000

0.35

0.20

0.49

0.000

0.33

0.20

0.46

0.000

17 to 24

0.36

0.14

0.58

0.001

0.73

0.29

1.16

0.001

0.35

-0.01

0.71

0.055

Overall

0.31

0.24

0.38

0.000

0.42

0.29

0.55

0.000

0.40

0.28

0.51

0.000

Age

            

30 to 39

1.41

0.95

1.88

0.000

1.41

0.97

1.85

0.000

1.41

0.97

1.85

0.000

40 to 49

0.44

0.35

0.54

0.000

0.37

0.25

0.50

0.000

0.39

0.28

0.51

0.000

50 to 59

0.50

0.12

0.88

0.010

0.99

-0.22

2.20

0.108

0.99

-0.22

2.20

0.108

Overall

0.48

0.39

0.58

0.000

0.46

0.34

0.58

0.000

0.47

0.35

0.58

0.000

Women (%)

            

< 80

3.22

0.68

5.76

0.013

        

80 to 89

0.70

0.49

0.91

0.000

0.96

0.30

1.62

0.004

0.85

0.46

1.24

0.000

90 to 99

0.33

0.23

0.44

0.000

0.37

0.13

0.61

0.002

0.31

0.14

0.47

0.000

100

0.40

0.25

0.55

0.000

0.50

0.23

0.78

0.000

0.50

0.23

0.78

0.000

Overall

0.41

0.33

0.49

0.000

0.46

0.29

0.64

0.000

0.42

0.28

0.55

0.000

Duration of disorder (years)

            

0 to 5

0.85

0.57

1.13

0.000

0.57

0.21

0.93

0.002

0.66

0.34

0.98

0.000

6 to10

0.36

0.27

0.45

0.000

0.45

0.26

0.64

0.000

0.38

0.22

0.54

0.000

11 to15

0.16

0.02

0.29

0.023

        

Overall

0.36

0.29

0.43

0.000

0.49

0.33

0.65

0.000

0.45

0.31

0.58

0.000

Country

            

Germany

0.36

0.17

0.56

0.000

        

Belgium

0.94

0.73

1.15

0.000

    

1.02

0.35

1.70

0.003

Brazil

1.13

0.46

1.80

0.001

0.99

-0.22

2.20

0.108

0.99

-0.22

2.20

0.108

Canada

0.35

0.20

0.50

0.000

0.38

0.17

0.59

0.000

0.29

0.11

0.46

0.001

Finland

0.10

-0.08

0.28

0.283

        

Netherlands

0.09

-0.21

0.39

0.567

        

Norway

0.30

-0.11

0.71

0.157

        

Sweden

0.35

0.05

0.64

0.022

0.45

0.03

0.88

0.038

0.45

0.03

0.88

0.038

Switzerland

0.02

-0.21

0.26

0.836

        

Turkey

2.19

1.31

3.08

0.000

1.41

0.97

1.85

0.000

1.41

0.97

1.85

0.000

USA

0.39

0.26

0.51

0.000

0.34

0.16

0.53

0.000

0.36

0.21

0.50

0.000

Overall

0.36

0.30

0.43

0.000

0.46

0.33

0.58

0.000

0.42

0.31

0.52

0.000