Nissen, Alexander Press Photos

Nissen, Alexander

Project assistant
Unit: Section for Trauma, catastrophes and forced migration - adults and elderly
Telephone: 916 23 650

Areas of Expertise

Perceived safety/threat following workplace terrorism

Mental health and perceived safety/threat in the workplace setting

Epidmiology and mental health following terrorism


Scientific articles and chapters

Berthelsen, M., Hansen, M. B., Nissen, A., Nielsen, M. B., Knardahl, S., & Heir, T. (2020). Effects of exposure to workplace terrorism on subsequent doctor certified sickness absence, and the modifying role of psychological and social work factors: a combined survey and register study. BMC Public Health, 20(1). doi:10.1186/s12889-020-08465-3

Nissen, A., Hansen, M., Bang Hansen, M., Nielsen, M. B., Birkeland Nielsen, M., Knardahl, S., & Heir, T. (2019). Employee safety perception following workplace terrorism. A longitudinal study. European Journal of Psychotraumatology, 10. doi:10.1080/20008198.2018.1478584

Hansen, M., Bang Hansen, M., Berthelsen, M., Nissen, A., & Heir, T. (2018). Sick leave before and after a work-place targeted terror attack. International Archives of Occupational and Environmental Health. doi:10.1007/s00420-018-1390-8

Hansen, M., Birkeland, M. S., Nissen, A., Blix, I., Solberg, Ø., & Heir, T. (2017). Prevalence and course of symptom-defined PTSD in individuals directly or indirectly exposed to terror: A longitudinal study. Psychiatry, 80(2), 171-183. doi:10.1080/00332747.2016.1230983

Nissen, A., Cook, J., Loha, E., & Lindtjorn, B. (2017). Proximity to vector breeding site and risk of Plasmodium vivax infection: a prospective cohort study in rural Ethiopia. Malaria Journal, 16:380, 1-11. doi:10.1186/s12936-017-2031-5

Blix, I., Kanten, A. B., Birkeland, M. S., Solberg, Ø., Nissen, A., & Heir, T. (2016). Thinking About What Might Have Happened: Counterfactual Thinking and Post-traumatic Stress in Individuals Directly and Indirectly Exposed to the 2011 Oslo Bombing. Applied Cognitive Psychology, 30(6), 983-991. doi:10.1002/acp.3289

Nissen, A., & Heir, T. (2016). Perceived safety at work in the wake of terror: The importance of security measures and emergency preparedness. Disaster Medicine and Public Health Preparedness, 10(6), 805-811. doi:10.1017/dmp.2016.45

Nissen, A., Nielsen, M. B., Solberg, Ø., Hansen, M., & Heir, T. (2015). Perception of threat and safety at work among employees in the Norwegian ministries after the 2011 Oslo bombing. Anxiety, Stress, & Coping, 28(6), 650-662. doi:10.1080/10615806.2015.1009831

Blix, I., Hansen, M., Birkeland, M. S., Nissen, A., & Heir, T. (2013). Posttraumatic growth, posttraumatic stress and psychological adjustment in the aftermath of the 2011 Oslo bombing attack. Health and Quality of Life Outcomes, 11:160. doi:10.1186/1477-7525-11-160

Hansen, M., Nissen, A., & Heir, T. (2013). Proximity to terror and post-traumatic stress: a follow-up survey of governmental employees after the 2011 Oslo bombing attack. BMJ Open, 3(7). doi:10.1136/bmjopen-2013-002692

Nissen, A., & McKee, H. (2003). Yale project for health action: AIDS education in South Africa. The Yale Journal of Biology and Medicine.

Other publications

Nissen, A. (2016). Data analysis project exploring the effect of proximity to vector breeding site on P.vivax infection using data from a prospective cohort study of residents in a rural village in Ethiopia. London School of Hygiene and Tropical Medicine. (Master’s thesis).

Nissen, A. (2014 November). Opplevelse av sikkerhet blant ansatte i departementene etter 22. juli. Foredrag på 10-års jubileum NKVTS, NKVTS.

Nissen, A. (2013 June). Perception of Threat and Safety at Work among Ministerial Employees after the 2011 Oslo Bombing. Paper presented at 13th European Conference on Traumatic Stress, Bologna.

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