Phenotypes of stigma expressed by people who use drugs on Reddit

Layla Bouzoubaa

doi:10.1016/j.socscimed.2025.118889

Phenotypes of stigma expressed by people who use drugs on Reddit

2025-12-17

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Layla Bouzoubaa *

E

Elham Aghakhani

R

Rezvaneh Rezapour

DOI：10.1016/j.socscimed.2025.118889

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• Novel “Stigma Perceptions & Commentary” classification identified in social media. • Three distinct stigma phenotypes discovered through unsupervised clustering. • LLM approach validated for stigma classification in 1M+ Reddit posts. • Computational phenotypes align with established stigma theory frameworks. • Social media accesses “hidden population” outside formal treatment systems.

Phenotypes of stigma expressed by people who use drugs on Reddit

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