This study explores how YouTube content creators integrate scientific evidence into their videos by analyzing citation patterns across disciplines. The role of other alternative metrics is also considered. We apply Principal Component Analysis (PCA) to compare the citation count of 12,005 research articles from Biotechnology, Psychology, Astrophysics, and Ecology published between 2014 and 2023, including citations sourced from YouTube videos. Our findings provide a characterization of two principal components in evidence citation employed by various science communication stakeholders. The first component enhances a paper's visibility by driving social attention, while the second focuses on its social influence and impact, determined by the paper's quality and scientific relevance.