Publications by authors named "Tobias Gerhard"

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Drug overdose risk with benzodiazepine treatment in young adults: Comparative analysis in privately and publicly insured individuals.
Greta A Bushnell, Moira A Rynn, Tobias Gerhard, Katherine M Keyes, Deborah S Hasin, Magdalena Cerdá, Abner Nyandege, Mark Olfson

Addiction· February 2024

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Prescribing of controlled substances to adolescents and young adults enrolled in Medicaid, 2001-2019.
Greta Bushnell, Mark Olfson, Kristen Lloyd, Stephanie Shiau, Tobias Gerhard

Drug Alcohol Depend· December 2025

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Machine learning for novel phenotyping in schizophrenia.
Natalie Bareis, Yuanjia Wang, Mark Olfson, Tobias Gerhard, Lisa Dixon

Schizophr Res· November 2025

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Stimulant Use Disorder Diagnoses in Adolescent and Young Adult Medicaid Enrollees.
Greta Bushnell, Katherine M Keyes, Yuyang Zhu, Magdalena Cerdá, Tobias Gerhard

JAMA Psychiatry· October 2025

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Early Childhood Antibiotics and Chronic Pediatric Conditions: A Retrospective Cohort Study.
Matthew A Beier, Soko Setoguchi, Tobias Gerhard, Jason Roy, Dawn Koffman

J Infect Dis· September 2025

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Prescription opioid use and opioid use disorder among older adults with HIV in the USA from 2008 to 2021: a retrospective repeated cross-sectional study.
Stephanie Shiau, Fabrizio Drago, Carolyn W Kinkade, Kylie Getz, Greta Bushnell, Tobias Gerhard

Lancet Prim Care· September 2025

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Risk of Ventricular Arrhythmia and Sudden Cardiac Arrest Among Older Patients Using Lamotrigine for Epilepsy.
Gloria Y F Ho, Daniel B Horton, Parin J Patel, Tobias Gerhard, Chintan V Dave

Neurology· July 2025

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Nationwide trends in diagnosed sedative, hypnotic or anxiolytic use disorders in adolescents and young adults enrolled in Medicaid: 2001-2019.
Greta Bushnell, Kristen Lloyd, Mark Olfson, Tobias Gerhard, Katherine Keyes

Addiction· May 2025

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Population-Based Validation Results From the Drug Repurposing for Effective Alzheimer's Medicines (DREAM) Study.
Rishi J Desai, Vijay R Varma, Mufaddal Mahesri, Su Been Lee, Ariel Freedman, Tobias Gerhard

Clin Pharmacol Ther· April 2025

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New Diagnoses of Juvenile Idiopathic Arthritis Early in the COVID-19 Pandemic: Analysis of a Large United States Commercial Insurance Database.
Sanika Rege, Lauren E Parlett, Amanda Neikirk, Alicia Iizuka, Yiling Yang, Tobias Gerhard

J Clin Rheumatol· January 2025

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Effects of antimicrobial exposure on the risk of Parkinson's disease.
Gian Pal, Laura Bennett, Jason Roy, Abner Nyandege, M Maral Mouradian, Tobias Gerhard

Parkinsonism Relat Disord· October 2024

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Psychiatric comorbidities and prescribing tendencies of sleep medications and related medications in young people with insomnia: a United States commercial claims-based analysis.
Greta Bushnell, Anna Ivanenko, Daniel B Horton, Jessica R Lunsford-Avery, Jonathan Posner, Tobias Gerhard

Sleep· May 2024

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Validity of ICD-10-based algorithms to identify patients with influenza in inpatient and outpatient settings.
Kirk Benack, Abner Nyandege, Edward Nonnenmacher, Saira Jan, Soko Setoguchi, Tobias Gerhard

Pharmacoepidemiol Drug Saf· April 2024

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Impact of the COVID-19 Pandemic on the Management of Juvenile Idiopathic Arthritis: Analysis of United States Commercial Insurance Data.
Daniel B Horton, Yiling Yang, Amanda Neikirk, Cecilia Huang, Stephen Crystal, Tobias Gerhard

J Clin Rheumatol· December 2023

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Geographic Trends in Pediatric Psychotropic Medication Dispensing Before and After the Start of the COVID-19 Pandemic.
Greta Bushnell, Jenny W Sun, Susan dosReis, Wendy Camelo Castillo, Angela S Czaja, Tobias Gerhard

Psychiatr Serv· August 2023

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Hydroxychloroquine lowers Alzheimer's disease and related dementias risk and rescues molecular phenotypes related to Alzheimer's disease.
Vijay R Varma, Rishi J Desai, Sheeja Navakkode, Lik-Wei Wong, Carlos Anerillas, Tobias Gerhard

Mol Psychiatry· March 2023

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Cardiovascular outcomes with SGLT2 inhibitors versus DPP4 inhibitors and GLP-1 receptor agonists in patients with heart failure with reduced and preserved ejection fraction.
Jimmy Gonzalez, Benjamin A Bates, Soko Setoguchi, Tobias Gerhard, Chintan V Dave

Cardiovasc Diabetol· March 2023

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Association of Benzodiazepine Treatment for Sleep Disorders With Drug Overdose Risk Among Young People.
Greta A Bushnell, Tobias Gerhard, Katherine Keyes, Deborah Hasin, Magdalena Cerdá

JAMA Netw Open· November 2022

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Trends in Prescribing Preferences for Antidiabetic Medications Among Patients With Type 2 Diabetes in the U.K. With and Without Chronic Kidney Disease, 2006-2020.
Julia Liaw, Meera Harhay, Soko Setoguchi, Tobias Gerhard, Chintan V Dave

Diabetes Care· October 2022

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No association between initiation of phosphodiesterase-5 inhibitors and risk of incident Alzheimer's disease and related dementia: results from the Drug Repurposing for Effective Alzheimer's Medicines study.
Rishi J Desai, Mufaddal Mahesri, Su Been Lee, Vijay R Varma, Tina Loeffler, Tobias Gerhard

Brain Commun· October 2022

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Pandemic vaccine testing: Combining conventional and challenge studies.
Tobias Gerhard, Brian L Strom, Nir Eyal

Pharmacoepidemiol Drug Saf· June 2022

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Feeling anxious yet? Interpreting findings on drug safety from large healthcare databases.
Greta A Bushnell, Daniel B Horton, Tobias Gerhard

Clin Transl Sci· June 2022

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Benzodiazepine and Stimulant Prescriptions Before Overdose in Youth.
Greta Bushnell, Hillary Samples, Tobias Gerhard, Diane P Calello, Mark Olfson

Pediatrics· April 2022

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Comparative Risk of Alzheimer Disease and Related Dementia Among Medicare Beneficiaries With Rheumatoid Arthritis Treated With Targeted Disease-Modifying Antirheumatic Agents.
Rishi J Desai, Vijay R Varma, Tobias Gerhard, Jodi Segal, Mufaddal Mahesri

JAMA Netw Open· April 2022

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