Supplementary Material for: Perceptions of Stroke and Associated Health-Care-Seeking Behavior in Northern Tanzania: A Community-Based Study

<b><i>Background:</i></b> Little is known about knowledge of stroke symptoms, perceptions of self-risk, and health-care-seeking behavior for stroke in East Africa. <b><i>Methods:</i></b> A 2-stage randomized population-based cluster survey with selection proportional to population size was performed in northern Tanzania. Self-identified household health-care decision makers were asked to list all symptoms of a stroke. They were further asked if they thought they had a chance of having a stroke and where they would present for care for stroke-like symptoms. A socioeconomic status score was derived via principal component analysis from 9 variables related to wealth. <b><i>Results:</i></b> Of 670 respondents, 184 (27.4%) knew a conventional stroke symptom and 51 (7.6%) thought they had a chance of having a stroke. Females were less likely to perceive themselves to be at risk than males (OR 0.49, 95% CI 0.28–0.89, <i>p</i> = 0.014). Of respondents, 558 (88.3%) stated they would present to a hospital for stroke-like symptoms. Preference for a hospital was not associated with knowledge of stroke symptoms or perception of self-risk but was associated with a higher socioeconomic status score (<i>p</i> &lt; 0.001). <b><i>Conclusions:</i></b> Knowledge of stroke symptoms and perception of self-risk are low in northern Tanzania, but most residents would present to a hospital for stroke-like symptoms.

**<i>背景：</i>** 目前学界对东非地区民众的脑卒中（stroke）症状认知、自身患病风险感知以及脑卒中就医行为的了解均较为有限。
**<i>方法：</i>** 本研究在坦桑尼亚北部开展了一项基于人群的两阶段整群随机抽样调查，抽样权重与人口规模成正比。研究招募自行认定为家庭医疗决策人的受访者，要求其列举脑卒中的所有相关症状；进一步询问其是否认为自身存在脑卒中发病风险，以及若出现类脑卒中症状时会前往何处就医。本研究通过主成分分析，基于9项与财富相关的变量构建了社会经济地位评分体系。
**<i>结果：</i>** 本次研究共纳入670名受访者，其中184人（27.4%）能够说出一种典型的脑卒中症状，51人（7.6%）认为自身存在脑卒中发病风险。女性感知自身患病风险的概率显著低于男性（比值比OR=0.49，95%置信区间CI=0.28~0.89，p=0.014）。558名受访者（88.3%）表示若出现类脑卒中症状会前往医院就诊。受访者对医院就诊的偏好与脑卒中症状认知、自身患病风险感知均无关联，但与更高的社会经济地位评分显著相关（p<0.001）。
**<i>结论：</i>** 坦桑尼亚北部民众的脑卒中症状认知水平与自身患病风险感知度均较低，但多数居民表示若出现类脑卒中症状时会前往医院就医。