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Table 5 Cluster analysis of stride frequency and variance analysis of main outcomes measurements in fibromyalgia patients

From: The interest of gait markers in the identification of subgroups among fibromyalgia patients

 

Subgroup I

n = 9

Subgroup II

n = 24

Subgroup III

n = 19

Comparison of subgroups

F ratio

P

SF, mean (SE) (Hz)

1.04 (0.03)

0.94 (0.02)

0.86 (0.02)

I, II ≠ III

76

0

VAS weekly, mean score (0 - 100)

56.9 (12.9)

76.9 (7.1)

67.5 (8.1)

I ≠ II

4.99

0.01

FIQ, mean score (0 - 100)

42.0 (10.6)

59.6 (5.8)

59.8 (6.6)

I ≠ II & III

6.20

0.004

SF-36 (PCS), mean score (0 - 100)

39.9 (5.8)

33.5 (3.0)

32.2 (3.4)

I ≠ III

3.35

0.04

CCP, mean (W/Kg)

4.2 (1.0)

2.6 (0.5)

1.9 (0.6)

I ≠ II & III

10.63

0.0002

  1. SF = stride frequency; SE = standard error; VAS = Visual Analog Scale; FIQ = Fibromyalgia Impact Questionnaire; SF-36 (PCS) = Short Form 36 items Medical Outcomes Study Questionnaire - physical component summary; CCP = Cranio-caudal power