A validation study of an Italian version of the "ID Migraine".
BACKGROUND
Migraine is a highly prevalent and disabling disease which is substantially underdiagnosed in primary care. Recently, the ID Migraine, a self-administered questionnaire, consisting of only 3 items, was shown to be a valid and reliable screening instrument for migraine in primary care in the United States.


OBJECTIVE
The aim of the present study was to validate an Italian version of the "ID Migraine" questionnaire.


METHODS
Two hundred and twenty-two consecutive headache patients referring to 8 headache centers in Sicily (Italy) completed an Italian version of the ID Migraine. The responses to the questionnaire were compared with the diagnosis of headache made by a headache specialist blind to the result of the questionnaire. Sensitivity, specificity, positive and negative predictive values for migraine were calculated.


RESULTS
The statistical analysis of 222 patients examined showed a very good performance of the ID Migraine with high sensitivity: 0.95 (95% CI, 0.91 to 0.98), specificity: 0.72 (95% CI, 0.62 to 0.82), and positive predictive value: 0.88 (95% CI, 0.82 to 0.93). ID Migraine showed also a very good accuracy level: 0.87 (95% CI, 0.83 to 0.92).


CONCLUSIONS
This validation study showed "ID Migraine" as a valid tool for migraine screening also in Italian patients referring to headache centers. If confirmed in a primary care setting, these results establish the "ID Migraine" as a valid screening instrument for migraine in Italian population.
Brighina
Filippo
F
Department of Neurological Sciences, University of Palermo, Palermo, Italy.
Salemi
Giuseppe
G
Fierro
Brigida
B
Gasparro
Antonio
A
Balletta
Antonio
A
Aloisio
Antonina
A
La Pegna
Giovanni
G
Randisi
Giovanna
G
Saporito
Vincenzo
V
Calagna
Giuseppe
G
La Naia
Filippo
F
Morana
Rossana
R
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007558:Italy; D008297:Male; D008403:Mass Screening / Q000379:methods / Q000592:standards*; D008881:Migraine Disorders / Q000175:diagnosis*; D011237:Predictive Value of Tests; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires / Q000592:standards*