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01-05-2011 | Uitgave 4/2011

Quality of Life Research 4/2011

EuroQol (EQ-5D) health utility scores for patients with migraine

Tijdschrift:
Quality of Life Research > Uitgave 4/2011
Auteurs:
Ruifeng Xu, Ralph P. Insinga, Wendy Golden, X. Henry Hu

Abstract

Purpose

Previous studies have reported health utilities for migraine patients as generally measured between migraine attacks, but health utility data for within a migraine attack are unavailable. We evaluated within-attack health utilities among acute migraine patients experiencing different grades of headache severity.

Methods

We examined data for 330 20–65-year-old adults, in good physical health, who had 1–6 moderate/severe migraine attacks per month in the 2 months prior to the screening visit. Data were collected from a multicenter, double-blind study of a treatment for acute migraine in the United States. The EQ-5D system was used to measure generic health status at baseline and 24 h post-treatment within an acute migraine attack, and patients were also asked to rate their pain level at these time points (no, mild, moderate, or severe pain). The D1 time-trade-off scoring algorithm for the U.S. population was applied. Confidence intervals were estimated by bootstrap methods.

Results

The study population was 88% women and 78% white ethnicity, with 60% of subjects over age 40. The disutility of mild migraine pain was estimated to be 0.140 (95% CI: 0.0848, 0.1940), with a disutility for moderate migraine pain of 0.186 (95% CI: 0.1645, 0.2053) and for severe migraine pain of 0.493 (95% CI: 0.4100, 0.5654).

Conclusions

Within-attack disutilities estimated for migraine in this study are much greater than those reported for migraine when evaluated as a chronic health condition (e.g., valuations collected at random time points). These data can be of value in adapting results from clinical trials of migraine interventions to cost-utility policy analyses.

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