Neurology Section, Department of Internal Medicine, The Aga Khan University, Dar es Salaam, Tanzania.
Department of General Surgery, Maxcure Hospitals Limited, Kisumu, Kenya.
Headache. 2023 Jul-Aug;63(7):880-888. doi: 10.1111/head.14592. Epub 2023 Jun 27.
The Migraine Disability Assessment Scale (MIDAS) is one of the tools for measuring and understanding disability caused by migraine. The purpose of this study was to validate a Kiswahili translation of the MIDAS (MIDAS-K) among patients suffering from migraines in Dar es Salaam, Tanzania.
A psychometric validation study of MIDAS was conducted after translation to Kiswahili. A total of 70 people with migraine were recruited by systematic random sampling and they completed the MIDAS-K questionnaire twice, 10-14 days apart. Internal consistency, split-half reliability, and test-retest reliability, convergent and divergent validity were examined.
70 patients (F:M; 59:11) with median (25th, 75th) headache days of 4.0 (2.0, 7.0) were recruited. Twenty-eight out of 70 (40%) of the population had severe disability on MIDAS-K. The overall test-retest reliability of MIDAS-K was high (ICC = 0.86; 95% CI = 0.78-0.92 p < 0.001). Factor analysis showed a two-factor structure; the number of days missed and reduced efficiency. MIDAS-K had a good internal consistency of 0.78, good split-half reliability of 0.80 and acceptable test-retest reliability for all items as well as total MIDAS-K scores.
The Kiswahili version of the MIDAS questionnaire (MIDAS-K) is a valid, responsive, and reliable tool to measure migraine-related disability among Tanzanians and other Swahili-speaking populations. Quantification of migraine disability in the region will guide policies directed at care allotment, improvement in the provision of interventions for migraine, as well as enhancement of health-related quality of life for patients with migraine in our region.
偏头痛残疾评估量表（MIDAS）是衡量和了解偏头痛引起残疾的工具之一。本研究旨在验证坦桑尼亚达累斯萨拉姆的偏头痛患者使用斯瓦希里语翻译的 MIDAS（MIDAS-K）。
在翻译成斯瓦希里语后，对 MIDAS 进行了心理测量学验证研究。通过系统随机抽样共招募了 70 名偏头痛患者，他们在 10-14 天的时间间隔内两次完成了 MIDAS-K 问卷。检查了内部一致性、半分可靠性、重测信度、收敛和发散效度。
共招募了 70 名患者（F:M；59:11），中位数（25 分位，75 分位）头痛天数为 4.0（2.0，7.0）。70 人中的 28 人（40%）在 MIDAS-K 上有严重残疾。MIDAS-K 的总体重测信度较高（ICC=0.86；95%CI=0.78-0.92，p<0.001）。因子分析显示有两个因素结构；错过的天数和效率降低。MIDAS-K 的内部一致性为 0.78，半分可靠性为 0.80，所有项目以及总 MIDAS-K 评分的重测信度均可接受。
斯瓦希里语版 MIDAS 问卷（MIDAS-K）是一种有效的、敏感的、可靠的工具，可以衡量坦桑尼亚和其他斯瓦希里语人群中与偏头痛相关的残疾。该地区偏头痛残疾的量化将指导政策分配，改善偏头痛干预措施的提供，并提高该地区偏头痛患者的健康相关生活质量。
