Abstract
Objectives This study aims to evaluate the drawings effectiveness in childhood headache assessment.
Background Headache is a common cause of pain in children. Although drawings have been used
in childhood to recognize psychological insights and pain perception, they were rarely
used for headache characterization.
Methods We collected drawings from 67 subjects with cephalalgia during a 22-month timeframe.
The clinical diagnosis was made according to the 2nd edition of The International
Headache Classification. Drawings were independently categorized as migraine or tension-type
headache (TTH) by two child neuropsychiatrists blinded to the clinical data. Cohen
kappa for interrater agreement, sensitivity, specificity, and positive predictive
value (PPV) were calculated. Subjects were also divided into three age groups to assess
the influence of age. Finally, a control group of 90 subjects was collected and K-means
cluster analysis was performed.
Results The drawings had a sensitivity of 85.71 and 81.48%, a specificity of 81.48 and 85.71%,
and a PPV of 85.71 and 81.48%, for migraine and TTH diagnosis, respectively. Drawings
by the older age group showed the highest predictability degree. Finally, by mean
of cluster analysis, 59 of the 67 patients were correctly classified, whereas control
subjects were similarly distributed between the two clusters.
Conclusions Drawings are a useful instrument for migraine and TTH differential diagnosis. Thus,
we suggest their inclusion in childhood headache diagnostic assessment.
Keywords
migraine - tension-type headache - childhood headache - diagnostic assessment - drawings
