A six-item short-form survey for measuring headache impact:: The HIT-6â„¢
A six-item short-form survey for measuring headache impact:: The HIT-6â„¢
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DOI：
10.1023/a:1026119331193
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发表时间：
2003-12-01
影响因子：
3.5
通讯作者：
Tepper, S
中科院分区：
文献类型：
--
作者：
Kosinski, M;Bayliss, MS;Tepper, S
背景：偏头痛和其他严重的头痛会导致痛苦，降低功能和生产力。患者是了解这种影响的最佳信息来源。目的：开发一种新的简短形式（HIT-6），用于评估头痛的影响，具有广泛的内容覆盖范围，但简短，可靠和有效，足以用于临床研究和实践中的筛选和监测患者。方法：从现有的54个项目库和临床医生建议的35个项目中选择HIT-6项目。根据内容效度、项目反应理论（IRT）信息函数、项目内部一致性、分数分布、临床效度和语言分析选择和修改项目。HIT-6是在一项基于互联网的头痛患者调查（n = 1103）中进行评估的，这些患者是美国在线（AOL）的成员。14天后，540人参加了后续调查。结果：HIT-6涵盖了广泛使用的头痛影响调查中的六个内容类别。HIT-6的内部一致性、替代形式和重测信度估计值分别为0.89、0.90和0.80。在所有受访者中，观察到88%的个体患者评分置信区间（95%）约为+/-5。在区分诊断和头痛严重程度组的有效性测试中，与总分相比，观察到HIT-6的相对有效性（RV）系数为0.82和1.00。基于HIT-6的患者水平分类在偏头痛诊断概率的推荐截止评分时准确率为88.7%。HIT-6对自我报告的头痛影响变化有反应。结论：IRT模型估计的“池”的项目广泛使用的措施头痛的影响是有用的，在构建一个有效的，可靠的，有效的“静态”的简短形式（HIT-6）用于筛选和监测患者的结果。
Background: Migraine and other severe headaches can cause suffering and reduce functioning and productivity. Patients are the best source of information about such impact. Objective: To develop a new short form (HIT-6) for assessing the impact of headaches that has broad content coverage but is brief as well as reliable and valid enough to use in screening and monitoring patients in clinical research and practice. Methods: HIT-6 items were selected from an existing item pool of 54 items and from 35 items suggested by clinicians. Items were selected and modified based on content validity, item response theory (IRT) information functions, item internal consistency, distributions of scores, clinical validity, and linguistic analyses. The HIT-6 was evaluated in an Internet-based survey of headache sufferers (n = 1103) who were members of America Online (AOL). After 14 days, 540 participated in a follow-up survey. Results: HIT-6 covers six content categories represented in widely used surveys of headache impact. Internal consistency, alternate forms, and test-retest reliability estimates of HIT-6 were 0.89, 0.90, and 0.80, respectively. Individual patient score confidence intervals (95%) of app. +/-5 were observed for 88% of all respondents. In tests of validity in discriminating across diagnostic and headache severity groups, relative validity (RV) coefficients of 0.82 and 1.00 were observed for HIT-6, in comparison with the Total Score. Patient-level classifications based in HIT-6 were accurate 88.7% of the time at the recommended cut-off score for a probability of migraine diagnosis. HIT-6 was responsive to self-reported changes in headache impact. Conclusions: The IRT model estimated for a 'pool' of items from widely used measures of headache impact was useful in constructing an efficient, reliable, and valid 'static' short form (HIT-6) for use in screening and monitoring patient outcomes.