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KMID : 0911820150160020062
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Korean Journal of Headache
2015 Volume.16 No. 2 p.62 ~ p.67
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Clinical Factors Influencing Headache Impact Test-6 in Migraine and Tension-type Headache Patients
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Sohn Jong-Hee
Chu Min-Kyung
Cho Soo-Jin
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Abstract
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Background: Headache Impact Test-6 (HIT-6) is the tool to assess headache-related disability. HIT-6 is also influenced
by the severity of headache and psychiatric comorbidity, but the impact of these parameters was not well known.
Methods: Data from a cross-sectional clinic based study including 98 patients with migraine or tension-type headache
(TTH) were used. Spearman correlations were studied between HIT-6 scores and demographics, monthly headache
days, severity of headache assessed by visual analogue scale, psychological parameters assessed by Hospital Anxiety
and Depression score, sleep quality assessed by Pittsburgh Sleep Quality Index, and dizziness assessed by Korean
Dizziness Handicap Inventory (KDHI). Linear regression was done and is accounted the coefficient of determinant
(R2) to assess the goodness of fit of the model for HIT-6.
Results: HIT-6 scores well correlated with headache severity (r=0.52, p<0.001), sleep quality scores (r=0.30, p=0.003),
anxiety scores (r=0.27, p=0.007), depression scores (r=0.20, p=0.047), and functional subscore of KDHI (r=0.30, p=0.002),
and did not correlated with age, gender or monthly headache days. In a total patient, 29% of the variance (R2) of HIT-
6 was explained by headache severity and sleep quality parameters.
Conclusion: About a third of variance of HIT-6 can be explained by severity of headache or psychological parameters.
Sleep quality is important as well as headache severity to HIT-6.
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KEYWORD
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Migraine, Tension-type headache, HIT-6
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