The Impact of a Public Awareness Campaign on Perceptions of Lung Cancer Risk Factors and Screening Guidelines

<b>Introduction:</b> Lung cancer (LC) is the leading cause of cancer mortality and is responsible for 1.8 million deaths annually. The early identification of risk factors, particularly smoking, is essential in improving outcomes. Public health campaigns play a crucial role in raising awareness, but misinformation and resource limitations hinder their effectiveness. This study evaluates the impact of a public awareness campaign on Saudi citizens' understanding of lung cancer (LC) risks and screening. <b>Methods:</b> An interventional study was conducted in Riyadh, Saudi Arabia, using pre- and post-campaign self-administered surveys. A total of 1,426 participants aged 18 or older were surveyed either before or after the campaign. A matching approach was used to control for confounding variables. Each participant may receive a maximum total score of 14 for their knowledge of lung cancer and a maximum total score of 10 for their awareness of lung cancer screening. <b>Results:</b> A total of 713 participants were surveyed pre-campaign, and 859 post-campaign). After matching, 308 participants remained for the analysis, with no significant demographic differences between those who were surveyed before and after the campaign. Post-campaign, awareness was significantly improved, which is reflected in an increase in accurate responses to key statements. The median knowledge scores increased from 11.0 to 23.0, indicating a substantial increase in understanding. <b>Conclusions:</b> The campaign effectively enhanced the awareness of LC risk factors and screening. However, new misconceptions regarding universal screening emerged, emphasizing the need for clear messaging. Future initiatives should address socioeconomic and gender disparities, promote collaborative decision-making, and implement long-term educational strategies. These findings align with previous research and highlight areas for improvement in public health outreach.