Tarjei Widding-Havneraas

Ph.D. candidate at the Department of Clinical Medicine, University of Bergen, Norway and the Competence Centre for Research and Education in Forensic Psychiatry, Haukeland University Hospital with supervisors Arnstein Mykletun (UiT), Henrik Daae Zachrisson (UiO), Anne Halmøy (UiB), and Ingvar Bjelland (UiB).

In 2021-2022, I had the privilege of working with Felix Elwert as a honorary fellow at University of Wisconsin-Madison, USA. During my stay we worked on quasi-experimental designs with Norwegian administrative data.

My PhD training has been oriented toward epidemiology and causal inference and included courses at London School of Hygiene and Tropical Medicine, UK. I hold an M.Phil. in Sociology and B.Sc. in Economics from the University of Bergen.

Research

PhD project: Effects of ADHD medication on long-term functional outcomes

My PhD examines (i) the use of variation in medical practice patterns as instrumental variables in health research, (ii) the extent to which ADHD symptoms, diagnosis, and medication vary geographically, and (iii) effects of ADHD medication on long-term risk of injuries and crime. (For more details, see publication 4 and 5 in peer-reviewed publication list below.)

Research interests

Substantive

  • Health care

  • Work and welfare

  • Social stratification

Methods

  • Causal inference

  • Quasi-experimental designs

Peer-reviewed publications

(6) Tarjei Widding-Havneraas, Simen Markussen, Felix Elwert, Ingvild Lyhmann, Ingvar Bjelland, Anne Halmøy, Ashmita Chaulagain, Eivind Ystrøm, Arnstein Mykletun, Henrik Daae Zachrisson. Geographical variation in ADHD: do diagnoses reflect symptom levels? 2022. European Child & Adolescent Psychiatry.

(5) Tarjei Widding-Havneraas, Ashmita Chaulagain, Ingvild Lyhmann, Henrik Daae Zachrisson, Felix Elwert, Simen Markussen, David McDaid, Arnstein Mykletun. Preference-based instrumental variables in health research rely on important and underreported assumptions: a systematic review. 2021. Journal of Clinical Epidemiology.

(4) Arnstein Mykletun, Tarjei Widding-Havneraas, Ashmita Chaulagain, Ingvild Lyhmann, Ingvar Bjelland, Anne Halmøy, Felix Elwert, Peter Butterworth, Simen Markussen, Henrik Daae Zachrisson, Knut Rypdal. Causal modeling of variation in clinical practice and long-term outcomes of ADHD using Norwegian registry data: the ADHD controversy project. 2021. BMJ Open.

(3) Tarjei Widding-Havneraas & Siri Hansen Pedersen. The role of welfare regimes in the relationship between childhood economic stress and adult health: a multilevel study of 20 European countries. 2020. SSM - Population Health.

(2) Beate Brinchmann, Tarjei Widding-Havneraas, Matthew Modini, Miles Rinaldi, Cathrine F. Moe, A-La Park, Eoin Killackey, Samuel B. Harvey, Arnstein Mykletun. A meta-regression of the impact of policy on the efficacy of Individual Placement and Support. 2019. Acta Scandinavica Psychiatrica.

(1) Tarjei Widding-Havneraas. Young adults not in employment, education or training: a register-based study, 1993–2009. 2016. Norwegian Journal of Working Life Studies.

Other publications

Grants

  • Research Council Norway: “Controversies in Psychiatry: Coercive Measures and Medication” Haukeland University Hospital. Role: Project participant. PI: Arnstein Mykletun, € 985,000, 2021-2026.

  • Western Norway Regional Health Authority (Helse Vest): Research stay, University of Wisconsin-Madison, USA, 2021-2022.

  • National Research School for Epidemiological Research (EPINOR): Course "Causal Inference in Epidemiology: Recent Methodological Developments", London School of Hygiene & Tropical Medicine, UK, 2019.

  • Research Council Norway (FRIPRO): “ADHD Controversy” Haukeland University Hospital. Role: Co-applicant. PI: Arnstein Mykletun, € 1,000,000, 2021-2024.

  • Western Norway Regional Health Authority (Helse Vest): “Long-term effects of ADHD medication on injuries and crime”. Personal PhD scholarship, € 285,000, 2018-2023.

Memberships

  • 2022- Society for Epidemiological Research

  • 2021– Royal Statistical Society

  • 2021– International Epidemiological Association

  • 2021– The John Snow Society

  • 2017– The Norwegian Epidemiological Association

  • 2013– The Norwegian Sociological Association