Thomas completed his thesis and subsequently undertook a research year at StatPharm from the spring of 2022 to the spring of 2023. Throughout this period, the primary areas of focus were psychiatry, public health and pharmacoepidemiology.
His thesis primarily examined how the implementation of stricter monitoring of benzodiazepine prescriptions led to an increased off-label use of "sleep medication."
The research year was predominantly concerned with the long-term use of benzodiazepines. Conclusion of the study was that among users of Benzodiazepine Receptor Agonists (BZRA), five percent had at least three years of continuous use, albeit with a relatively stable dose. However, certain risk factors were identified that were associated with significantly higher consumption, including prior substance abuse and ethnicity.
In July 2023, Thomas graduated as a medical doctor from the University of Copenhagen and subsequently completed his clinical basic training (KBU) at Køge Emergency Department as well as in general practice. During this period, he gained experience with substance abuse issues and both minor and major psychiatric disorders.
Since September 2024, he has been pursuing a PhD with the title “Socioeconomic Differentials in Treatment and Survival in Major Depression." The overarching aim of the project is to investigate socioeconomic disparities in mortality from both natural and unnatural causes among patients with depression, and to what extent these differences can be explained by factors related to the patient, the illness, and the treatment.
Awards
Third Place in the Clinical Psychiatry Thesis Competition 2022 by Danish Regions
Reviewer for the following journals:
American Journal of Psychiatry, Addiction, Journal of Substance Use and Addiction Treatment, and BMC Public Health
Review invitations can be sent to thomas.wolff.rosenqvist@regionh.dk
Selected Publications
Rosenqvist, T. W., Wium-Andersen, M. K., Wium-Andersen, I. K., Jørgensen, M. B., & Osler, M. (2024). Long-Term Use of Benzodiazepines and Benzodiazepine-Related Drugs: A Register-Based Danish Cohort Study on Determinants and Risk of Dose Escalation. American Journal of Psychiatry, 181(3), 246–254. https://doi.org/10.1176/appi.ajp.20230075
Rosenqvist, T.W., Osler, M., Wium-Andersen, M.K., & Wium-Andersen, I.K. (2023). Sedative Drug Use in Denmark, 2000 to 2019: A Nationwide Drug Utilization Study. Social Psychiatry and Psychiatric Epidemiology, 58, 1493–1502. https://doi.org/10.1007/s00127-022-02409-5