Open Peer Review Any reports and responses or comments on the article can be found at the end of the article. RESEARCH NOTE Perception of the risk of medicinal marijuana in postgraduate medical residents [version 1; peer review: awaiting peer review] Sandra Castillo-Guzmán , Dionicio Palacios Ríos, Teresa Adriana Nava Obregón, Daniela Alejandra Becerril Gaitàn, Keren Daniela Juangorena García, Danya Carolina Domínguez Romero, Misael Jerónimo Reyes Rodríguez Pain and Palliative Care Clinic, Anesthesiology Service, Hospital Universitario Dr.Jose Eleuterio González y Facultad de Medicina de la Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, 66463, Mexico Abstract Drugs can often cause adverse reactions, and the perception Background: of the risk of prescription drugs could influence prescription behaviour. This was a prospective cross-sectional study of the perception of Methods: postgraduate physicians in training of the risk of using medical marijuana, comparing it with their perception of paracetamol and sedatives. A visual analogue scale with ranges from 0 (no risk) to 10 (totally risky) was used. A total of 197 postgraduate students were evaluated; 48 women Results: and 149 men took part, with a mean age 27.8 years. Among the different specialties, there was a difference with regard to the perception of medical marijuana and paracetamol and all perceived a greater risk with sedatives. There was no evidence of a risk perception of marijuana in relation to factors such as alcohol consumption and smoking. There is a difference in the perception of risk of medical Conclusions: marijuana and paracetamol with this perception being greater with sedatives. Regarding specialties, the perception of risk was greater for medical marijuana in general surgery than in urology. Keywords Risk perception, marijuana, méxico, postgraduate medical residents. Sandra Castillo-Guzmán ( ) Corresponding author: castilloguzsan@yahoo.com.mx : Conceptualization, Formal Analysis, Investigation, Methodology, Project Administration, Supervision, Writing – Author roles: Castillo-Guzmán S Original Draft Preparation, Writing – Review & Editing; : Formal Analysis, Methodology; : Formal Analysis, Palacios Ríos D Nava Obregón TA Methodology; : Formal Analysis, Investigation, Methodology; : Investigation; Becerril Gaitàn DA Juangorena García KD Domínguez Romero : Conceptualization, Investigation; : Conceptualization, Formal Analysis, Investigation DC Reyes Rodríguez MJ No competing interests were disclosed. Competing interests: The author(s) declared that no grants were involved in supporting this work. Grant information: © 2019 Castillo-Guzmán S . This is an open access article distributed under the terms of the Copyright: et al Creative Commons Attribution , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Licence Castillo-Guzmán S, Palacios Ríos D, Nava Obregón TA How to cite this article: et al. Perception of the risk of medicinal marijuana in F1000Research 2019, :381 ( postgraduate medical residents [version 1; peer review: awaiting peer review] 8 ) https://doi.org/10.12688/f1000research.17394.1 04 Apr 2019, :381 ( ) First published: 8 https://doi.org/10.12688/f1000research.17394.1 Reviewer Status AWAITING PEER REVIEW 04 Apr 2019, :381 ( First published: 8 ) https://doi.org/10.12688/f1000research.17394.1 04 Apr 2019, :381 ( Latest published: 8 ) https://doi.org/10.12688/f1000research.17394.1 v1 Page 1 of 5 F1000Research 2019, 8:381 Last updated: 06 SEP 2019