Images depicting headache pain – a tool to aid the diagnosis of cluster headache: a pilot study

Figures & data

Figure 1 Visual tool tested on healthy participants.

Figure 2 Visual tool tested on participants with cluster headache and migraine.

Figure 3 Image selection by healthy participants.

Table 1 Image rating according to severity

Image no.	Severity rating (number of participants)
	Mild	Moderate	Severe	Excruciating	No rating
Image 1	0	0	1	131	18
Image 2	9	60	59	4	18
Image 3	2	18	93	25	12
Image 4	26	88	24	4	8
Image 5	0	3	22	93	32
Image 6	129	15	1	0	5

Table 2 Demographics of the study population

Variable	Migraine	Cluster headache
Number of participants	100	16
Number of female/male	86/14	3/13
Number of episodic/chronic	93/7	7/9
Gender ratio (female/male)	6.14	0.23
Age in years: mean (SD)	44 (11)	48 (14)

Figure 4 Image selection by participants with cluster headache.

Figure 5 Image selection by participants with migraine.

Table 3 Image selection classified by diagnosis

Image	Migraine (number of patients)	Cluster headache (number of patients)
Image 1	52	11
Image 2	20	1
Image 3	21	3
Image 4	4	1
Image 5	2	0
Image 6	1	0