Table 5

Fibromyalgia (1990 Criteria) [8] and pressure - induced pain thresholds in Cohort 2 (mean [95% confidence intervals]; probability).

HC

All CFS

CFS+MO

CFS+MA

CFS+T

n = 20

N = 67

n = 40

n = 16

n = 10


Widespread pain

10.0%

50.0%

P = 0.0010*

55.3%

p = 0.0006*

46.2

p = 0.02*

33.3%

Manual pressure at ≥ 11/18 Points

5.6%

55.4%

p = 0.00005*

64.1%

p = 0.000013*

56.3%

p = 0.001*

20.0%

p = 0.014**

Fibromyalgia

0%

37.7%

P = 0.0004*

47.4%

P = 0.00007*

28.5%

p = 0.022*

11.1%

p = 0.03**

Systemic pain threshold (kg)

5.23

[3.95-6.52]

2.90

[2.47-3.32]

p = 0.0002

2.36

[1.95-2.78]

P = 0.00001

3.51

[2.53-4.48]

3.94

[2.67-5.20]

p = 0.025 ††

Sinus pain threshold (kg)

1.91

[0.37-2.45]

p = 0.0002

0.87

[0.71-1.03]

p = 0.0001

1.18

[0.86-1.51]

1.30

[0.90-1.71]


Fisher's Exact Test vs.* HC and vs. ** CFS+MO. 2-tailed unpaired Student's tests with Bonferonni corrections following ANOVA (p < 0.05) vs. HC and vs. †† CFS+MO.

Ravindran et al. BMC Neurology 2011 11:30   doi:10.1186/1471-2377-11-30

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