Objective:

To assess the quality and educational value of short videos on TikTok and Bilibili related to cardiovascular disease (CVD) and comorbid anxiety or depression, focusing on accuracy, engagement, and user understanding.

Key Findings:

• Short videos are increasingly used for health education but often lack scientific accuracy and credibility, which can mislead viewers.
• There is a significant gap in reliable health information regarding CVD and mental health on digital platforms, highlighting the need for improved content.
• User engagement metrics provide insights into patient information needs and preferences, which can guide future content creation.

Interpretation:

The study highlights the urgent need for reliable and scientifically accurate health information on digital platforms, particularly for vulnerable populations with CVD and mental health issues, to prevent misinformation.

Limitations:

• The study focused only on Chinese-language content, limiting generalizability.
• Videos were selected based on platform algorithms, which may not represent all available content.
• Potential biases in user engagement metrics may affect the interpretation of patient information needs.

Conclusion:

The findings underscore the importance of ensuring the quality of health-related videos to prevent misinformation and support patient education.