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Table 1 Demographic and clinical variables of the fibromyalgia syndrome patients and healthy controls

From: Heterogeneity of psychophysiological stress responses in fibromyalgia syndrome patients

 

FMS (n = 90) (mean ± SD (range))

HC (n = 30) (mean ± SD (range))

Age (years)

48.17 ± 10.32 (21–68)

48.22 ± 9.02 (22–65)

Duration of pain (years)

9.28 ± 9.23 (0.5–45)

 

Painful regions

6.80 ± 2.05 (3–12)

 

Number of tender points

16.09 ± 3.33 (14–18)

2 ± 0.33 (0–4)

Mean tender points pain severitya

5.89 ± 2.27 (2–10)

3.13 ± 1.06 (0–3)

Use of antidepressive medications (number)

0.36 ± 0.52 (0–3)

0.21 ± 0.03 (0–2)

Occupational status

N (%)

N (%)

   Working

39 (43.3)

17 (56.8)

   Unemployed

20 (22.2)

9 (30.0)

   Workers' compensation

24 (26.7)

0 (0.0)

   Retired

6 (6.7)

2 (6.6)

   Student

1 (1.1)

2 (6.6)

  1. aVisual analogue scale ranges from 0 = no pain to 10 = most intense pain. FMS, fibromyalgia syndrome; HC, healthy control; SD, standard deviation.