Abstract WMP107: Temporal Trends In Public Awareness Of Stroke: 1996-2021

Background: Knowledge of stroke risk factors (RF) and warning signs (WS) may improve adherence to primary stroke prevention and encourage more rapid presentation after symptom onset. As a result, improving stroke knowledge has been a major public health focus. We sought to study trends in stroke knowledge between 1996 and 2021 in a well-defined population. Methods: Surveys were conducted in 1996, 2000, 2005, 2011, 2016, and 2021 in the 5-county Greater Cincinnati Northern Kentucky region, a population of 1.3 million that reflects the USA in terms of Black race, income, and educational attainment. Respondents were selected to reflect the age, race and sex distribution of the local ischemic stroke population. Potential subjects were contacted using random-digit dialing (with adjustment for cell phone use after 2005) and asked open-ended questions regarding stroke WS and RF knowledge. Correct answers for all years were determined based upon current AHA guidelines and public health messaging. Trends in knowledge were then evaluated over time adjusting for age, Race, sex, and education. Multiple logistic regression models and a cumulative model were used for analysis. Results: Over the 25-year period, 12,322 surveys were completed. After adjustment for age, sex, Race, and education, RF and WS knowledge significantly increased between 1996 and 2021 (P<0.0001), but this was not consistent across years (Figure). The percentage of participants that could identify at least two WS improved significantly in 2000 and then again in 2011. Stroke WS knowledge was then stagnant in 2016 and worsened slightly in 2021. Knowledge of at least two RFs steadily improved from 1996 to 2011, but then declined modestly in 2016 and was stagnant in 2021. Discussion: While stroke RF and WS knowledge has overall improved since 1996, knowledge remains suboptimal and some gains may have been lost in recent years. More research on the most effective methods for improving stroke awareness is needed.