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About me

I am researcher in psychiatry, and currently pursuing a postdoc at the University of Oxford. My main research focus is on pharmacoepidemiology, and specifically the link between medications and adverse outcomes. Outcomes include suicidal behaviour, violence, non-violent crimes, accidental overdoses, depression, and accidents.

Other research areas include antisocial behaviour and substance misuse problems in adolescence, and suicide and self-harming behaviour. 


M.Sc., Stockholm University 

PhD, Department of Clinical Neuroscience, Center for Psychiatric Research, Karolinska Institutet

Postdoc, Department of Clinical Neuroscience, Karolinska Institutet

Guest researcher, Department of Medical Epidemiology and Biostatistics, Karolinska Institutet

Postdoc, Department of Psychiatry, University of Oxford 



Research description


Sidorchuk A, Isomura K,  Molero Y, Hellner C, Lichtenstein P, Chang Z, Franck J, Fernández de la Cruz L, Mataix-Cols D. Benzodiazepine prescribing for children, adolescents, and young adults from 2006 through 2013: A total population register-linkage study. PLOS Medicine, 2018; 15 (8): e1002635


Molero Y, Zetterqvist J, Binswanger IA, Hellner C, Larsson H, Fazel S. (2018). Medications for Alcohol and Opioid Use Disorders and Risk of Suicidal Behavior, Accidental Overdoses, and Crime. American Journal of Psychiatry, Aug 2:appiajp201817101112.


Molero Y, Bakshi A-S, Gripenberg J. (2017). Illicit Drug Use Among Gym-Goers: a Cross-sectional Study of Gym-Goers in Sweden. Sports Med Open, 3.


Sahlin H, Kuja-Halkola R, Bjureberg J, Lichtenstein P, Molero Y, Rydell M, Hedman E, Runeson B, Jokinen J, Ljótsson B, Hellner C. (2016). Association Between Deliberate Self-harm and Violent Criminality. JAMA Psychiatry, 74, 615 - 621.


Norén Selinus E, Molero Y, Lichtenstein P, Anckarsäter H, Lundström S, Bottai M, Hellner Gumpert C. (2016). Subthreshold and threshold attention deficit hyperactivity disorder symptoms in childhood: psychosocial outcomes in adolescence in boys and girls. Acta Psychiatr Scand, 134, 533 - 545.


Molero Y, Gripenberg J, Bakshi A-S. (2016). Effectiveness and implementation of a community-based prevention programme targeting anabolic androgenic steroid use in gyms: study protocol of a quasi-experimental control group study. BMC Sports Sci Med Rehabil, 8:36. 


Molero Y, Lichtenstein P, Zetterqvist J, Gumpert CH, Fazel S. (2015). Selective serotonin reuptake inhibitors and violent crime: A cohort study. PLoS Med, 12(9):e1001875.


Norén Selinus E, Molero Y, Lichtenstein P, Larson T, Lundström S, Anckarsäter H, Gumpert CH. (2015). Childhood symptoms of ADHD overrule comorbidity in relation to psychosocial outcome at age 15: A longitudinal study. PLoS One,10(9):e0137475.


Molero Y, Lichtenstein P, Zetterqvist J, Gumpert CH, Fazel S. (2015). Varenicline and risk of psychiatric conditions, suicidal behaviour, criminal offending, and transport accidents and offences: population based cohort study. BMJ, 350:h2388.


Molero Y, Larsson A, Tengström A, Eklund J. (2015). Are offending trajectories identified in population sample studies relevant for clinical settings? An examination of offending trajectories between age 15 and 33 among 3068 males and females in a clinical sample and a matched general population sample. Criminal Behaviour and Mental Health, 25, 416 - 428.


Molero Y, Gumpert C, Serlachius E, Lichtenstein P., Walum H, Johansson D, Anckarsäter H, Westberg L, Eriksson E, Halldner L. (2013). A study of the possible association between adenosine A2A receptor (ADORA2A) gene polymorphisms and ADHD traits. Genes, Brain and Behavior, 12, 305-310.


Molero Y, Larsson A, Larm P, Eklund J, Tengström A. (2011). Violent, non-violent and substance-related offending up to age 50 in a cohort of males and females treated for substance misuse problems. Aggressive Behaviour, 37, 338-348.


Molero Samuelson Y, Hodgins S, Larsson A, Larm P, Tengström A. (2010). Adolescent antisocial behavior as predictor of adverse outcomes to age 50: A follow-up study of 1,947 individuals. Criminal Justice and Behavior, 37, 158-174.


Hodgins S, Larm P, Molero Samuleson Y, Tengström A, Larsson A. (2009). Multiple adverse outcomes over 30 years following adolescent substance misuse treatment. Acta Psychiatrica Scandinavica, 119, 484-493.


Larm P, Hodgins S, Larsson A, Molero Samuelson Y, Tengström A. (2008). Long-term outcomes of adolescents treated for substance misuse. Drug and Alcohol Dependence, 96, 79-89.



Psychological and psychosocial treatment for adolescents (2015). In National guidelines for treatment of substance misuse and dependence. Support for management and guidance. Article number 2015-4-2. Stockholm: The National Board of Health and Welfare.​

Molero Y, Forsman M, Långström N. Rates of criminal recidivism as a measure of prison efficacy. Project number: 2014-275 (Återfall som effektmått. Projektnummer: 2014-275). Norrköping: The Swedish Prison and Probation Service (Kriminalvården). ISBN: 978-91-86903-66-4.

Teaching portfolio



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