Deep learning for topical trend discovery in online discourse about Pre-Exposure Prophylaxis (PrEP)

Pre-Exposure Prophylaxis (PrEP) interventions are increasingly prevalent on social media. These data can be mined for insights about PrEP that may not be as apparent in surveys including personal musings about PrEP and barriers/facilitators to PrEP uptake. This study explores online discourse about PrEP using an interdisciplinary public health and computational informatics approach. We collected (N = 4,020) tweets using Twitter's Application Programming Interface (API). These data underwent a three-step neural network/deep learning process to identify clusters within these tweets and relative similarity/dissimilarity between clusters. We identified 25 distinct clusters from our original collection of tweets. These clusters represent general information about PrEP, how PrEP is communicated among diverse groups, and potential pockets of misinformation and disinformation regarding PrEP. Specific clusters of interest include discussions of medication side effects, social perception of PrEP usage, and concerns with costs and barriers to access of PrEP interventions. Our approach revealed diverse ways PrEP is contextualized online. Importantly this information can be leveraged to identify points of possible intervention for disinformation and misinformation about PrEP

Disinformation · Family medicine · Health communication · Health psychology · Human immunodeficiency virus (HIV · Internet privacy · Intervention (counseling · Medical education · Men who have sex with men · Misinformation · Pre-exposure prophylaxis · Psychological intervention · Public health · Social media · World Wide Web · Computer Science · Health Literacy and Information Accessibility · HIV, Drug Use, Sexual Risk · HIV/AIDS Research and Interventions · Medicine · Nursing · Psychology · Health Informatics

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