PMID- 27506130 OWN - NLM STAT- MEDLINE DCOM- 20171117 LR - 20181202 IS - 1873-2860 (Electronic) IS - 0933-3657 (Linking) VI - 71 DP - 2016 Jul TI - Detecting signals of detrimental prescribing cascades from social media. PG - 43-56 LID - S0933-3657(16)30074-4 [pii] LID - 10.1016/j.artmed.2016.06.002 [doi] AB - MOTIVATION: Prescribing cascade (PC) occurs when an adverse drug reaction (ADR) is misinterpreted as a new medical condition, leading to further prescriptions for treatment. Additional prescriptions, however, may worsen the existing condition or introduce additional adverse effects (AEs). Timely detection and prevention of detrimental PCs is essential as drug AEs are among the leading causes of hospitalization and deaths. Identifying detrimental PCs would enable warnings and contraindications to be disseminated and assist the detection of unknown drug AEs. Nonetheless, the detection is difficult and has been limited to case reports or case assessment using administrative health claims data. Social media is a promising source for detecting signals of detrimental PCs due to the public availability of many discussions regarding treatments and drug AEs. OBJECTIVE: In this paper, we investigate the feasibility of detecting detrimental PCs from social media. METHODS: The detection, however, is challenging due to the data uncertainty and data rarity in social media. We propose a framework to mine sequences of drugs and AEs that signal detrimental PCs, taking into account the data uncertainty and data rarity. RESULTS: We conduct experiments on two real-world datasets collected from Twitter and Patient health forum. Our framework achieves encouraging results in the validation against known detrimental PCs (F1=78% for Twitter and 68% for Patient) and the detection of unknown potential detrimental PCs (Precision@50=72% and NDCG@50=95% for Twitter, Precision@50=86% and NDCG@50=98% for Patient). In addition, the framework is efficient and scalable to large datasets. CONCLUSION: Our study demonstrates the feasibility of generating hypotheses of detrimental PCs from social media to reduce pharmacists' guesswork. CI - Copyright (c) 2016 Elsevier B.V. All rights reserved. FAU - Hoang, Tao AU - Hoang T AD - School of Information Technology and Mathematical Sciences, University of South Australia, Mawson Lakes, Adelaide, South Australia 5095, Australia. Electronic address: hoatn002@mymail.unisa.edu.au. FAU - Liu, Jixue AU - Liu J AD - School of Information Technology and Mathematical Sciences, University of South Australia, Mawson Lakes, Adelaide, South Australia 5095, Australia. FAU - Pratt, Nicole AU - Pratt N AD - School of Pharmacy and Medical Sciences, University of South Australia, City East Campus, North Terrace, Adelaide, South Australia 5000, Australia. FAU - Zheng, Vincent W AU - Zheng VW AD - Advanced Digital Sciences Center, 1 Fusionopolis Way, #08-10 Connexis North Tower, Singapore 138632, Singapore. FAU - Chang, Kevin C AU - Chang KC AD - Department of Computer Science, University of Illinois at Urbana-Champaign, 201 N Goodwin Ave, Urbana, IL 61801, United States. FAU - Roughead, Elizabeth AU - Roughead E AD - School of Pharmacy and Medical Sciences, University of South Australia, City East Campus, North Terrace, Adelaide, South Australia 5000, Australia. FAU - Li, Jiuyong AU - Li J AD - School of Information Technology and Mathematical Sciences, University of South Australia, Mawson Lakes, Adelaide, South Australia 5095, Australia. LA - eng PT - Journal Article DEP - 20160629 PL - Netherlands TA - Artif Intell Med JT - Artificial intelligence in medicine JID - 8915031 SB - IM MH - *Data Mining MH - *Drug-Related Side Effects and Adverse Reactions MH - Humans MH - Pharmacists MH - *Social Media OTO - NOTNLM OT - Adverse effect OT - Detrimental prescribing cascade OT - Drug OT - Existence uncertainty OT - Order uncertainty OT - Sequence mining OT - Social media EDAT- 2016/08/11 06:00 MHDA- 2017/11/29 06:00 CRDT- 2016/08/11 06:00 PHST- 2016/03/02 00:00 [received] PHST- 2016/06/02 00:00 [revised] PHST- 2016/06/07 00:00 [accepted] PHST- 2016/08/11 06:00 [entrez] PHST- 2016/08/11 06:00 [pubmed] PHST- 2017/11/29 06:00 [medline] AID - S0933-3657(16)30074-4 [pii] AID - 10.1016/j.artmed.2016.06.002 [doi] PST - ppublish SO - Artif Intell Med. 2016 Jul;71:43-56. doi: 10.1016/j.artmed.2016.06.002. Epub 2016 Jun 29.