Validation of the Headache Impact Test (HIT-6™) across episodic and chronic migraine.
Cephalalgia
; 31(3): 357-67, 2011 Feb.
Article
em En
| MEDLINE
| ID: mdl-20819842
ABSTRACT
OBJECTIVE:
The purpose of this study was to assess psychometric properties of the six-item Headache Impact Text (HIT-6™) across episodic and chronic migraine.METHODS:
Using a migraine screener and number of headache days per month (HDPM), participants from the National Survey of Headache Impact (NSHI) study and the HIT-6 validation study (HIT6-V) were selected for this study. Eligible participants were categorized into three groups chronic migraine (CM ≥ 15 HDPM); episodic migraine (EM < 15 HDPM); non-migraine headaches. Reliability and validity of the HIT-6 were evaluated.RESULTS:
A total of 2,049 survey participants met the inclusion/exclusion criteria for this study. Participants were identified as 6.4% CM; 42.1% EM; 51.5% non-migraine, with respective mean HIT-6 scores 62.5 ± 7.8; 60.2 ± 6.8; and 49.1 ± 8.7. High reliability was demonstrated with internal consistency (time1/time2) of 0.83/0.87 in NSHI, and 0.82/0.92 in HIT6-V. Intra-class correlation for test-retest reliability was very good at 0.77. HIT-6 scores correlated significantly (p < .0001) with total Migraine Disability Assessment Scale scores (r = 0.56), headache pain severity (r = 0.46), and HDPM (r = 0.29). Discriminant validity analysis showed significantly different HIT-6 scores (F = 488.02, p < .0001) across the groups.CONCLUSION:
Results from these analyses confirm that the HIT-6 is a reliable and valid tool for discriminating headache impact across episodic and chronic migraine.
Texto completo:
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Bases de dados:
MEDLINE
Assunto principal:
Psicometria
/
Qualidade de Vida
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Indicadores Básicos de Saúde
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Efeitos Psicossociais da Doença
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Transtornos de Enxaqueca
Tipo de estudo:
Etiology_studies
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Prognostic_studies
/
Qualitative_research
/
Risk_factors_studies
Limite:
Adolescent
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Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Cephalalgia
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Estados Unidos