Table 1 Demographic characteristics, clinical characteristics and antipolymer antibody (APA) levels of 285 fibromyalgia patients.

Gender (females/males)

270/15

57/3

213/12

Age (years) (median (range))

54 (19–82)

46 (19–74)

56 (20–82)

Tender points

14.29 ± 0.29

13.88 ± 0.83

14.30 ± 0.34

Tender Point Index

2.17 ± 0.04

2.17 ± 0.12

2.19 ± 0.04

Onset disease

9.19 ± 0.60

8.77 ± 1.19

10.11 ± 0.67

Fibromyalgia Impact Questionnaire

58.21 ± 1.22

55.89 ± 2.59

58.46 ± 1.39

Tiredness

6.96 ± 0.17

7.16 ± 0.41

6.88 ± 0.19

Pain

6.80 ± 0.17

6.31 ± 0.42

6.87 ± 0.18