Table 2.

Pain drawing criteria according to diagnostic groups

Frequently1)occuring drawings marks
Pain drawing criteria	Somatoform-functional pain (n = 62)	Somatic-nociceptive pain (n = 49)	P-value
1. Number of marked pain regions2)	9.7±7.4 (1–33)	1.6±1.0 (1–6)	<0.001
2. Total number of marks	13.5±11.8 (1–73)	2.1±1.4 (1–8)	<0.001
3. Number of different types of marks	2.6±1.3 (1–6)	1.3±0.6 (1–3)	<0.001
4. Number of affected quadrants	3.0±1.1 (1–4)	1.6±0.9 (1–4)	<0.001
5. Number of symmetric marks	6.9±7.5 (0–30)	0.4±0.9 (0–4)	<0.001
6. Number of “over the border” marks	1.4±2.5 (0–13)	0.4±0.9 (0–5)	0.010
7. Length of the longest mark, in mm	37.2±26.0 (2–105)	14.7±9.2 (3–40)	<0.001
8. Symmetric patterns yes, %	75.8	16.3	<0.001
9. Neck involved yes, %	74.2	4.1	<0.001
10. Circle mark yes, %	16.1	26.5	0.179
11. Point mark yes, %	37.1	4.1	<0.001
12. Long lines yes3), %	62.9	6.1	<0.001
13. Strict horizontal mark yes, %	25.8	2.0	<0.001
14. Hatching mark yes, %	38.7	14.3	0.004
Rarely1)occurring drawing mark
15. Half-side pattern yes, %	9.7	0	0.033
16. Sternocleidomastoid involved yes, %	21.0	2.0	0.003
17. Periorbital pain yes, %	11.3	0	0.017
18. X marks yes, %	8.1	22.4	0.054
19. Potato mark yes, %	24.2	18.4	0.459
20. Right angle yes, %	14.5	0	0.004
21. Contour pain yes, %	19.4	0	0.001
22. Towing bar yes, %	8.1	0	0.065
23. Radiation hand yes, %	19.4	0	0.001
24. Ear crest yes,%	11.3	0	0.017

1) Marks referred to as “frequently occurring“ appeared in ≥ 25% of cases in one of the two groups. Marks referred to as “rarely occurring“ appeared in less than 25% of cases in both groups.

2) If the same pain region was repeatedly marked in the different views of the body diagram, it was counted once only under this item.

3) A mark was considered to be “long” if it exceeded the length of a forearm (≥ 18 mm) in the template.