Table 3

Differences between lifestyle physical activity (LPA) and fibromyalgia education (FME) groups on the primary and secondary study measuresa

Variable

Mean ± SD

Mean difference between groups at baseline and at 12-weeks (95% CI)

P Value

Cohen's d


N

LPA

FME


FM impact questionnaire

Baseline

84

67.5 ± 12.0

69.7 ± 13.4

2.2 (-3.3 to 7.8)

0.424

.17

Post intervention

73

56.7 ± 20.6

67.0 ± 18.6

10.2 (.91 to 19.6)

0.032

.53

Pain

Baseline

84

54.6 ± 25.6

58.9 ± 25.0

4.3 (-7.2 to 14.9)

0.489

.17

Post intervention

73

46.3 ± 24.2

62.4 ± 24.5

16.1 (4.6 to 27.5)

0.006

.67

Fatigue severity scale

Baseline

84

51.9 ± 9.3

52.3 ± 9.1

.4 (-3.6 to 4.4)

0.843

.04

Post intervention

73

50.6 ± 9.9

51.4 ± 10.1

.8 (-3.9 to 5.5)

0.727

.07

CES-D*

Baseline

84

23.4 ± 8.6

24.0 ± 10

.6 (-3.8 to 4.5)

0.798

.06

Post intervention

73

21.6 ± 9.8

21.2 ± 11.3

.4 (-5.3 to 4.6)

0.888

.04

Number of tender points

Baseline

84

16.2 ± 2.3

16.1 ± 3.2

.1 (-1.2 to 1.0)

0.979

.03

Post intervention

72

16.0 ± 2.3

16.8 ± 2.0

.8 (-.35 to 1.9)

0.172

.37

Body mass index (BMI)

Baseline

82

31.4 ± 8.4

29.8 ± 6.2

1.6 (-4.7 to 1.7)

0.360

.22

Post intervention

60

31.0 ± 9.0

29.9 ± 6.2

1.1 (-5.3 to 2.9)

0.575

.14

Six-minute walk test, yd/sec

Baseline

77

1.08 ± 0.15

1.08 ± 0.19

.0004 (-0.78 to 0.79)

0.991

0

Post intervention

62

1.24 ± 0.28

1.11 ± 0.20

1.21 (-0.25 to 0.008)

0.067

.53


* Center for Epidemiologic Studies Depression Scale; a between-subjects t-tests were used to derive P values; bCohen's d [19] effect size estimates (d = .20 (small effect); d = .50 (medium effect); d = .80 (large effect)).

FME, fibromyalgia education; LPA, lifestyle physical activity

Fontaine et al. Arthritis Research & Therapy 2010 12:R55   doi:10.1186/ar2967

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