Pennsylvania

Reddit is one of the largest social media websites in the world and it contains valuable data about its users and their perspectives organized into virtual communities or subreddits, based on common areas of interest.  Substance use issues are particularly salient within this online community due to the burgeoning substance use (opioid) crisis within the United States among other countries.  A particularly important location for understanding user perceptions of opioids is the Philadelphia, Pennsylvania, USA region, due to the prevalence associated with overdose deaths.  To collect user sen