The quality and reliability of short videos about myocarditis on Bilibili and TikTok: cross-sectional study.
- 1Clinical Research Center, Department of Cardiology, The Third Xiangya Hospital, Central South University, Changsha, China.
- 2Department of Geriatrics, The Second People's Hospital of Futian District Shenzhen, Shenzhen, China.
- 3Department of Geriatrics, The Second People's Hospital of Futian District Shenzhen, Shenzhen, China. [email protected].
Abstract
Background
Myocarditis is a significant cause of cardiovascular morbidity and sudden cardiac death. Short-video platforms like TikTok and Bilibili have become primary sources of health information. However, the quality of myocarditis-related content remains unassessed, raising concerns about the risk of misinformation and public anxiety. This study aimed to systematically evaluate the quality, reliability, and content completeness of myocarditis-related short videos on TikTok and Bilibili.Methods
We conducted a cross-sectional study to systematically assess 228 myocarditis-related videos (134 from TikTok and 94 from Bilibili) retrieved using the keyword "myocarditis." Video quality and reliability were evaluated using the Global Quality Scale (GQS) and the modified DISCERN (mDISCERN), with assessments made by two independent raters. We analyzed video characteristics and the coverage of key content domains.Results
Overall, video quality was suboptimal. Platform differences were evident: Bilibili videos had longer durations (median 247.50 s [IQR: 117.25-530.75] vs. 90.50 s [IQR: 54.25-143.00], p < 0.001) and higher GQS scores (median 3.00 [IQR: 3.00-4.00] vs. 3.00 [IQR: 2.00-3.00], p < 0.01), while TikTok videos had greater user engagement. Healthcare professionals were responsible for 62.7% of the videos, which received significantly higher quality and reliability scores (GQS: median 3.00 [IQR: 3.00, 4.00]; mDISCERN: median 3.00 [IQR: 2.00, 3.00]) compared to those produced by individuals (GQS: median 3.00 [IQR: 2.00, 3.00]; mDISCERN: median 2.00 [IQR: 1.00, 3.00]) or institutions (GQS: median 3.00 [IQR: 2.00, 3.00]; mDISCERN: median 2.00 [IQR: 1.00, 3.00]). Symptom (35.96%) description was the most frequently addressed topic, while epidemiology (3.95%) and prevention (7.02%) were rarely and inadequately covered. Furthermore, video length was positively correlated with higher GQS scores.Conclusions
While short videos serve as a major channel for myocarditis education, significant gaps in content quality and a lack of preventive focus were identified. Engaging healthcare professionals in content creation, promoting detailed and balanced information, and implementing platform-level quality oversight are essential to improving the accuracy and public health value of these videos.
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BibTeX
@article{gong2026quality,
title = {{The quality and reliability of short videos about myocarditis on Bilibili and TikTok: cross-sectional study.}},
author = {Yingxuan Gong and Yuhui He and Tingjun Li},
journal = {BMC cardiovascular disorders},
year = {2026},
month = jul,
doi = {10.1186/s12872-026-06328-0},
url = {https://europepmc.org/article/MED/42928098},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - The quality and reliability of short videos about myocarditis on Bilibili and TikTok: cross-sectional study.
AU - Yingxuan Gong
AU - Yuhui He
AU - Tingjun Li
PY - 2026
DA - 2026/07/29
JO - BMC cardiovascular disorders
DO - 10.1186/s12872-026-06328-0
UR - https://europepmc.org/article/MED/42928098
AB - Background Myocarditis is a significant cause of cardiovascular morbidity and sudden cardiac death. Short-video platforms like TikTok and Bilibili have become primary sources of health information. However, the quality of myocarditis-related content remains unassessed, raising concerns about the risk of misinformation and public anxiety. This study aimed to systematically evaluate the quality, reliability, and content completeness of myocarditis-related short videos on TikTok and Bilibili.Methods We conducted a cross-sectional study to systematically assess 228 myocarditis-related videos (134 from TikTok and 94 from Bilibili) retrieved using the keyword "myocarditis." Video quality and reliability were evaluated using the Global Quality Scale (GQS) and the modified DISCERN (mDISCERN), with assessments made by two independent raters. We analyzed video characteristics and the coverage of key content domains.Results Overall, video quality was suboptimal. Platform differences were evident: Bilibili videos had longer durations (median 247.50 s [IQR: 117.25-530.75] vs. 90.50 s [IQR: 54.25-143.00], p < 0.001) and higher GQS scores (median 3.00 [IQR: 3.00-4.00] vs. 3.00 [IQR: 2.00-3.00], p < 0.01), while TikTok videos had greater user engagement. Healthcare professionals were responsible for 62.7% of the videos, which received significantly higher quality and reliability scores (GQS: median 3.00 [IQR: 3.00, 4.00]; mDISCERN: median 3.00 [IQR: 2.00, 3.00]) compared to those produced by individuals (GQS: median 3.00 [IQR: 2.00, 3.00]; mDISCERN: median 2.00 [IQR: 1.00, 3.00]) or institutions (GQS: median 3.00 [IQR: 2.00, 3.00]; mDISCERN: median 2.00 [IQR: 1.00, 3.00]). Symptom (35.96%) description was the most frequently addressed topic, while epidemiology (3.95%) and prevention (7.02%) were rarely and inadequately covered. Furthermore, video length was positively correlated with higher GQS scores.Conclusions While short videos serve as a major channel for myocarditis education, significant gaps in content quality and a lack of preventive focus were identified. Engaging healthcare professionals in content creation, promoting detailed and balanced information, and implementing platform-level quality oversight are essential to improving the accuracy and public health value of these videos.
SN - 1471-2261
ER -