Quality and reliability of short videos about type A aortic dissection on Bilibili and TikTok: a cross-sectional study
5 affiliations
- 1Qian’an Hospital of Traditional Chinese Medicine, Qian’an, China
- 2Hebei North University, Zhangjiakou, China
- 3Nanjing University of Chinese Medicine, Nanjing, China
- 4College of Traditional Chinese Medicine, Hebei North University, Zhangjiakou, China
- 5North China University of Science and Technology, Caofeidian New City, Tangshan, China
Abstract
Background: Type A aortic dissection (TAAD) is a life-threatening cardiovascular emergency. Short-video platforms such as TikTok and Bilibili have become important channels for health information dissemination, but the quality and reliability of TAAD-related videos remain unclear.
Objective: This study aimed to evaluate the quality and reliability of TAAD-related short videos on TikTok and Bilibili, with particular attention to platform differences and uploader characteristics.
Methods: The top 250 videos ranked by comprehensive ranking on each platform were screened using the Chinese keyword “A型主动脉夹层.” A total of 391 eligible videos were included. Uploaders were classified as medical practitioners, individual users, or institutions. Video quality and reliability were assessed using the Global Quality Score (GQS), modified DISCERN (mDISCERN), JAMA benchmarks, and Video Information Quality Instrument (VIQI). Multivariable regression analyses were performed to identify factors independently associated with video quality.
Results: TikTok videos showed higher engagement, whereas Bilibili videos were longer and provided broader coverage of epidemiology, etiology, and clinical presentation-related content. TikTok remained independently associated with higher VIQI scores after adjustment. Medical practitioners and institutions generally achieved higher VIQI and JAMA scores than individual users, and content coverage score was independently associated with higher video quality. However, mDISCERN scores did not differ significantly among uploader types.
Conclusion: TAAD-related short videos demonstrated moderate overall quality but limited reliability. Platform characteristics, uploader type, and content coverage were associated with assessed information quality. Professional participation may improve some aspects of health communication, but uploader identity alone does not ensure higher reliability or transparency.
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BibTeX
@article{wei2026quality,
title = {{Quality and reliability of short videos about type A aortic dissection on Bilibili and TikTok: a cross-sectional study}},
author = {Keyu Wei and Mengqi Liu and Yuji Yan and Ruiying Lan and Yizi Zhang and Xiaolei Han and Ying Wang and Wenxu He and Xinhua Tang and Naizhong Zhang and Xiaolin Gao and Chunyu Tian and Xiaoling Wang},
journal = {Frontiers in Digital Health},
year = {2026},
month = oct,
doi = {10.3389/fdgth.2026.1964412},
url = {https://doi.org/10.3389/fdgth.2026.1964412},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Quality and reliability of short videos about type A aortic dissection on Bilibili and TikTok: a cross-sectional study
AU - Keyu Wei
AU - Mengqi Liu
AU - Yuji Yan
AU - Ruiying Lan
AU - Yizi Zhang
AU - Xiaolei Han
AU - Ying Wang
AU - Wenxu He
AU - Xinhua Tang
AU - Naizhong Zhang
AU - Xiaolin Gao
AU - Chunyu Tian
AU - Xiaoling Wang
PY - 2026
DA - 2026/10/21
JO - Frontiers in Digital Health
DO - 10.3389/fdgth.2026.1964412
UR - https://doi.org/10.3389/fdgth.2026.1964412
AB - Background: Type A aortic dissection (TAAD) is a life-threatening cardiovascular emergency. Short-video platforms such as TikTok and Bilibili have become important channels for health information dissemination, but the quality and reliability of TAAD-related videos remain unclear. Objective: This study aimed to evaluate the quality and reliability of TAAD-related short videos on TikTok and Bilibili, with particular attention to platform differences and uploader characteristics. Methods: The top 250 videos ranked by comprehensive ranking on each platform were screened using the Chinese keyword “A型主动脉夹层.” A total of 391 eligible videos were included. Uploaders were classified as medical practitioners, individual users, or institutions. Video quality and reliability were assessed using the Global Quality Score (GQS), modified DISCERN (mDISCERN), JAMA benchmarks, and Video Information Quality Instrument (VIQI). Multivariable regression analyses were performed to identify factors independently associated with video quality. Results: TikTok videos showed higher engagement, whereas Bilibili videos were longer and provided broader coverage of epidemiology, etiology, and clinical presentation-related content. TikTok remained independently associated with higher VIQI scores after adjustment. Medical practitioners and institutions generally achieved higher VIQI and JAMA scores than individual users, and content coverage score was independently associated with higher video quality. However, mDISCERN scores did not differ significantly among uploader types. Conclusion: TAAD-related short videos demonstrated moderate overall quality but limited reliability. Platform characteristics, uploader type, and content coverage were associated with assessed information quality. Professional participation may improve some aspects of health communication, but uploader identity alone does not ensure higher reliability or transparency.
SN - 2673-253X
ER -