Morten Frisch

Morten Frisch

Contact

Morten Frisch, Consultant Physician, hr.departments.infektionsepidemiologiogforebyggelseprojektsexus
T. +45 32683160 @. mfr@ssi.dk

Research Areas

My main areas of research are

  • Sexual health epidemiology (sexual behavior and risk factors, sexually transmitted infections, sexual ill-health, sexual wellbeing, interplay between sexuality and general physical and mental health)
  • Descriptive and analytical epidemiology of infectious diseases, cancer and autoimmune diseases

I am the co-founder and PI of Project SEXUS, since its inception in 2017, a large-scale, prospective population-based cohort study aimed to shed light on the sexual behavior, health and well-being of the Danish population as well as on the interplay between sexual health and ill-health on one side and general physical and mental health on the other.

Selected publications
Andresen JB, Graugaard C, Andersson M, Frisch M.
Associations of adverse childhood experiences, sexual identity and sexual risk indicators with HPV vaccination uptake in Denmark – a nationwide epidemiological study.
Vaccine 2026;77:128367
Graugaard C, Stentoft D, Andersson M, Frisch M.
Sexual health and challenges among 15-89-year-old Danes with and without severe visual impairment: Baseline findings in a nationally representative cohort study.
Disabil Health J 2026;19:102013
Larimore CF, Jacobsen HA, Graugaard C, Andersson M, Larsen L, Frisch M.
Sexual health challenges in individuals with and without inflammatory bowel disease: A population-based study in Denmark.
Inflamm Bowel Dis 2026;32:271-281
Madsen CH, Graugaard C, Dalton SO, Andersson M, Bidstrup PE, Frisch M.
Sexual health among Danish cancer survivors and individuals with no history of cancer: Baseline findings from the nationwide Project SEXUS cohort study.
Cancer 2025;131:e70074
Schweizer FB, Dalgaard LNR, Graugaard C, Andersson M, Frisch M.
Sexual health and behaviors in homosexual, bisexual, and heterosexual Danes: Baseline findings in the Project SEXUS cohort study.
J Sex Med 2025;22:1926-1936
Hvid U, Simonsen L, Frisch M, Sneppen K.
Relationship dynamics and behavioral adaptations in the control of the 2022 mpox epidemic.
Proc Nat Acad Sci USA 2025;122:e2502861122
Andresen JB, Graugaard C, Andersson M, Frisch M.
Factors associated with moral disapproval of same-sex sexual behavior in Denmark: Baseline findings from the Project SEXUS cohort study.
Arch Sex Behav 2025;54:2611-2623
Scofield D, Frisch M, Andersson M, Storgaard M, Pedersen G, Johansen IS, Katzenstein TL, Graugaard C, Omland LH, Weis N, Moseholm E.
Physical, psychosocial and sexual health among people aged 50 years and above with and without HIV: a nationwide study.
AIDS 2025;39:875-885
Andresen JB, Graugaard C, Andersson M, Bahnsen MK, Frisch M.
Adverse childhood experiences, sexual risk-taking and non-consensual sexual experiences in a nationally representative study of 15-29-year-old Danes.
Child Abuse & Neglect 2024;151:106720
Koops TU, Andresen JB, Graugaard C, Briken P, Bahnsen MK, Andersson M, Frisch M.
Associations between recalled childhood gender nonconformity and adult sexual dysfunction in Denmark: Baseline assessment in the Project SEXUS cohort study.
J Sex Med 2023;20:1451-1458
Bahnsen MK, Graugaard C, Boisen KA, Andresen JB, Andersson M, Frisch M.
Sexuality among young Danes treated for mental health problems: Baseline findings in a nationwide cohort study.
J Psychiatr Res 2023;168:334-343
Erlangsen A, Jacobsen AL, Ranning A, Delamare AL, Nordentoft M, Frisch M.
Transgender identity and suicide attempts and mortality in Denmark.
JAMA 2023;329:2145-2153; https://doi.org/10.1001/jama.2023.8627
Andresen JB, Graugaard C, Andersson M, Bahnsen MK, Frisch M.
Childhood gender non-conformity, sexual orientation and mental health problems among 18 to 89 year-old Danes.
World Psychiatry 2023;22:334-335; https://doi.org/10.1002/wps.21096
Scofield D, Weis N, Andersson M, Storgaard M, Pedersen G, Johansen IS, Katzenstein TL, Graugaard C, Frisch M, Moseholm E.
Psychosocial, sexual, reproductive and menopausal health in women with and without HIV in a high-income setting.
AIDS 2023;37:1315-1322; https://doi.org/10.1097/QAD.0000000000003555
Graugaard C, Bahnsen MK, Boisen KA, Andresen JB, Andersson M, Frisch M.
Sexuality among young Danes treated for long-lasting or severe physical disease: baseline findings in a nationwide cohort study.
J Adolesc Health 2023; https://doi.org/10.1016/j.jadohealth.2023.02.039
List of total publications  
H-index (Web of Science) 63 (2026)

 

Academia  
2012-current Professor (adj.) of Sexual Health Epidemiology, Aalborg University 
2002 DSc(Med), University of Copenhagen
1999 Authorization to independently practice medicine
1995 PhD, University of Copenhagen
1989 MD, University of Copenhagen

Employment
2026-current Consultant, Department of Infectious Disease Epidemiology and Prevention, SSI
2006-2025 Consultant, Department of Epidemiology Research, SSI
2000-2005 Department Specialist, Department of Epidemiology Research, SSI
1999-2000 Visiting Scientist, Viral Epidemiology Branch, National Cancer Institute, Maryland, USA
1996-1998 Senior Investigator, Department of Epidemiology Research, SSI
1993-1995  Epidemiologist, Department of Epidemiology Research, SSI
1990-1993 Research Fellow, Danish Cancer Registry
1989-1990 Registrar, Hvidovre Hospital, Copenhagen

Professional Activities and Leadership Positions
2023-current Appointed chief representative for Denmark, Governing Council, International Agency for Research on Cancer, Lyon, France
2018 Member of specialist group regarding HTA (medicinsk teknologivurdering, MTV) of HPV vaccination of boys for the Danish National Board of Health
2017-current Co-founder and PI, Project SEXUS (www.projektsexus.dk
2017 Appointed specialist in Danish National Board of Health's campaign to increase uptake of HPV vaccination among girls
2012 Chairman for Danish Medical Association’s Research Council for Prevention’s working group on ‘Sexuality and Health’ (https://bit.ly/2mCbpWW)
2012-2014 Medical consultant for the Danish Cancer Registry
2011-2016 Swedish Cancer Society, member of scientific evaluation committee PkF
2005-2025 Member, Department Steering Committee, Department of Epidemiology Research, SSI
2002-2011  Senior investigator, case-control study of rheumatoid arthritis
1990-2008  PI, case-control studies of HPV-associated cancers (anal, penile, vulvovaginal)

Prizes and Honours
2025 Awarded “Årets Laks 2025” by LGBT+ Danmark
2025 Included in Krak’s Who’s Who in Denmark (Kraks Blå Bog)
2022      Nominée for the Scientific Ethical Committee’s Honorary Scientific Ethics Award
2013 Research award of the Danish AIDS Foundation
2012 Research award of the Professor, dr.med. Fritz Kauffmann’s Memorial Foundation
2002 Research award of the Thorvald Madsen Research Foundation
2001 Research award of the Classenske Fideicommis’ Jubilee Foundation
1997 Research award of the Danish Cancer Society, Young Cancer Scientist of the Year