ArticleJournal of thoracic disease2026
Quality, content, and engagement of pulmonary tuberculosis related videos on Douyin: a cross-sectional study.
Article in Journal of thoracic disease, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
Background: Pulmonary tuberculosis (PTB) remains a major public health concern worldwide despite being preventable and curable. China remains one of the 30 high tuberculosis (TB) burden countries, and short-video platforms such as Douyin (the Chinese mainland version of TikTok) have become important sources of health information, yet the quality of PTB-related content remains unclear. This study aimed to evaluate the content completeness, reliability, quality, and engagement of PTB-related videos on Douyin. Methods: We conducted a cross-sectional content analysis on October 23, 2025. Using the hashtag "#pulmonary tuberculosis" under the default "comprehensive ranking", we initially retrieved 220 videos. Videos ranked 201-220 were reserved as a priori for pilot reviewer calibration, and the remaining top 200 videos underwent formal screening, of which 191 met the inclusion criteria. We extracted video characteristics, uploader type, and engagement metrics. A PTB-specific checklist covering six dimensions (definition, symptoms, risk factors, evaluation, management, outcomes) was scored, and reliability/quality were assessed using Results: Of 191 videos, 150 (78.5%) were posted by health professionals. Most were uploaded in 2024-2025 (86.4%); median duration was 74 s [interquartile range (IQR) 48-110]. Content completeness was limited (median 3.0, IQR 2.0-4.5), with risk factors and outcomes rarely addressed; social-context coverage was also limited. Health professionals and science communicators achieved higher content scores than general users and news agencies (P<0.001). Overall quality was modest (median MQ-VET 46, IQR 42-48), lowest among general users and highest among science communicators (P<0.001). Engagement indicators were strongly intercorrelated but weakly or negatively associated with quality, and high-quality videos were not concentrated in top-ranking positions. In regression models, higher comment counts were associated with lower quality, whereas collections were associated with higher quality. Conclusions: PTB-related videos on Douyin showed substantial heterogeneity in content completeness and overall quality. Higher-quality videos were not consistently prioritized by platform ranking or user engagement, highlighting the need to promote trustworthy and comprehensive PTB information.
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