Billings-Gagliardi Susan, Mazor Kathleen M
Department of Cell Biology, University of Massachusetts Medical School, Worcester, Mass 01655, USA.
Stroke. 2005 May;36(5):1035-9. doi: 10.1161/01.STR.0000162716.82295.ac. Epub 2005 Apr 7.
Accurately assessing the public's readiness to respond to stroke is important. Most published measures are based on recall or recognition of stroke symptoms, or knowledge of the best action for stroke when the diagnosis is provided. The purpose of this study was to develop and evaluate a new written instrument whose items require the respondent to associate individual symptoms with the most appropriate action.
The Stroke Action Test (STAT) contains 21 items that name or describe stroke symptoms from all 5 groups of warning signs and 7 items that are nonstroke symptoms. For each item, the respondent selects 1 of 4 options: call 911, call doctor, wait 1 hour, or wait 1 day. The instrument validation sample included 249 subjects from community-based organizations. Score reliability and validity were analyzed using multiple data and information sources.
The mean overall STAT score (all 28 items) for the lay people was 36.8%. On average, they chose call 911 for 34.1% of the stroke symptoms. They chose call doctor for 39.4% of the stroke symptoms, wait 1 hour for 20.1%, and wait 1 day for 6.0%. Score reliability is good (alpha=0.83). Evidence confirming score validity is presented based on analysis of item content and response patterns, and examination of the relationships between test scores and key variables related to stroke knowledge.
STAT directly assesses a critical aspect of practical stroke knowledge that has been largely overlooked and provides scores with good reliability and validity.
准确评估公众对中风的应对准备情况十分重要。大多数已发表的测评方法是基于对中风症状的回忆或识别，或者是在给出诊断时对中风最佳应对措施的了解。本研究的目的是开发并评估一种新的书面工具，其项目要求受访者将个体症状与最恰当的应对措施相关联。
中风行动测试（STAT）包含21个项目，这些项目命名或描述了所有5组警示信号中的中风症状，以及7个非中风症状项目。对于每个项目，受访者从4个选项中选择1个：拨打911、呼叫医生、等待1小时或等待1天。工具验证样本包括来自社区组织的249名受试者。使用多种数据和信息来源分析得分的信度和效度。
普通人群的STAT总平均分（所有28个项目）为36.8%。平均而言，他们针对34.1%的中风症状选择拨打911。他们针对39.4%的中风症状选择呼叫医生，20.1%选择等待1小时，6.0%选择等待1天。得分信度良好（α=0.83）。基于对项目内容和回答模式的分析，以及对测试得分与中风知识相关关键变量之间关系的考察，给出了确认得分效度的证据。
STAT直接评估了一个在很大程度上被忽视的实用中风知识的关键方面，并提供了具有良好信度和效度的分数。
