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Table 1 Baseline values, change from baseline in outcome variables, and within-group and between-group differences in change in the resistance exercise group and the active control group

From: Resistance exercise improves physical fatigue in women with fibromyalgia: a randomized controlled trial

 

Resistance exercise group

Active control group

Resistance vs active control group

 

Baseline n = 67 Mean (SD)

∆ 15 weeks n = 56 Mean (SD), min, max

Within-group analysis p value

Baseline n = 63 Mean (SD)

∆ 15 weeks n = 49 Mean (SD), min, max

Within-group analysis p value

Between-group analysis of baseline p value

Between group analysis of change p value

Between-group analysis of change, adjusted p value*

MFI-20

         

General fatigue

17.3 (2.7)

−1.3 (3.1), −10, – 7

0.003

17.8 (2.74)

−0.5 (2.6), −9, – 4

0.48

0.17

0.031

0.37

Physical fatigue

16.0 (3.0)

−1.7 (4.3), −13, – 8

0.011

16.5 (2.9)

0.0 (2.7), −8, – 5

0.66

0.29

0.013

0.044

Mental fatigue

15.0 (3.3)

−1.6 (3.4), −10, – 7

0.001

15.0 (4.0)

−0.1 (2.5), −6, – 5

0.85

0.56

0.008

0.070

Reduced activity

14.6 (3.4)

−1.0 (3.6), −13, – 6

0.055

15.2 (3.5)

−0.1 (2.8), −8, – 5

0.89

0.29

0.12

0.069

Reduced motivation

10.5 (3.5)

−0.6 (3.7), −10, – 10

0.16

10.4 (3.6)

0.4 (2.8), −8, – 6

0.34

0.78

0.061

0.32

Exploratory outcomes

         

FIQ fatigue

81.4 (17.3)

−8.6 (21.2), −87, – 66

0.002

81.8 (15.8)

−5.5 (19.0), −81, – 73

0.11

0.95

0.27

0.18

PSQI

         

Duration of sleep

1.1 (1.1)

−0.0 (0.9), −3, – 3

0.73

1.1 (1.2)

−0.2 (0.9), −2, – 2

0.22

0.94

0.46

0.26

Sleep efficiency

1.9 (1.1)

−0.3 (1.0), −3, – 1

0.061

1.4 (1.2)

0.1 (1.2), −2, – 3

0.55

0.027

0.14

0.37

Sleep disturbance

2.0 (0.6)

0.0 (0.6), −1, – 1

1.00

2.0 (0.6)

0.1 (0.6), −1, – 1

0.35

0.89

0.50

0.37

Sleep latency

1.7 (1.0)

−0.1 (0.8), −2, – 1

0.26

1.8 (1.0)

0.0 (0.8), −2,– 2

0.84

0.83

0.53

0.32

Day dysfunction

1.6 (0.8)

−0.1 (0.8), −2, – 2

0.45

1.7 (0.8)

0.0 (0.8), −2, – 2

1.00

0.49

0.64

0.65

Sleep quality

1.8 (0.8)

−0.2 (0.8), −2, – 1

0.047

1.9 (0.8)

0.0 (0.8), −1, – 2

0.69

0.90

0.19

0.16

Need meds to sleep

1.0 (1.3)

−0.1 (1.2), −3, – 3

0.69

1.0 (1.3)

0.3 (1.0), −2, – 3

0.036

0.82

0.27

0.10

PSQI total score

10.9 (4.3)

−0.6 (3.4), −11, – 9

0.18

10.8 (4.0)

0.5 (3.0), −5, – 9

0.48

0.76

0.13

0.23

PCS

         

Rumination

6.3 (3.6)

−0.9 (3.5), −8, – 12

0.046

6.6 (4.3)

−0.8 (3.2), −8, – 10

0.056

0.81

0.97

0.11

Magnification

3.4 (2.5)

−0.6 (1.9), − 4, – 4

0.030

3.6 (2.8)

−0.4 (2.0), −5, – 3

0.25

0.82

0.50

0.18

Helplessness

9.7 (5.3)

−1.3 (4.0), −10, – 9

0.012

10.1 (5.9)

−1.6 (4.6), −15, – 6

0.051

0.84

0.84

0.49

PCS total score

19.4 (10.0)

−2.7 (7.6), −17, – 19

0.004

20.3 (11.9)

−2.8 (7.9), −25, – 11

0.055

0.88

0.58

0.16

HADS

         

Depression

7.0 (3.9)

−0.7 (3.7), −9, – 11

0.086

6.7 (3.5)

0.3 (2.8), −6, – 12

0.49

0.80

0.082

0.11

Anxiety

7.9 (4.7)

−0.3 (3.6), − 11, – 8

0.58

8.0 (4.5)

0.5 (2.7), − 9, – 8

0.10

0.94

0.22

0.099

  1. MFI-20 Multidimensional Fatigue Inventory, FIQ Fibromyalgia Impact Questionnaire, PSQI Pittsburgh Sleep Quality Index, PCS Pain Catastrophizing Scale, HADS Hospital Anxiety and Depression Scale
  2. * p value adjusted for PSQI sleep efficiency
  3. p values <0.05 are marked in bold print