Projects per year
Personal profile
Research
I do research within reproductive epidemiology and to untangle the causes of low fertility and disturbances in reproductive health.
My research contributes to long-term prevention over treatment, ensuring the best possible conditions and decision-making basis for family formation and reproductive health for current and future generations.
Profile
I am a professor of epidemiology, and my research focuses on reproductive health. Among other things, I investigate how biologic, social, and psychological factors affect our reproductive and overall health throughout life. I am particularly interested in the causes of low fertility, reduced fecundity, and early/late puberty.
I hold a Master’s degree of Health Sciences (MHSc) and a Ph.D. in Medicine from Aarhus University.
Commissioned
I am available to politicians, decision-makers, and the media who need expert knowledge in my field of research.
I am also a member of several steering committees:
· Virtual Reality in Interprofessional Education Project, VIA (2025-)
· Personalised Medicine Network at Health, AU (2023-)
· Odense Child Cohort (2023-)
· Faculty affiliate at UCLA Practical Causal Inference Lab (2024-)
· Faculty member of the International Max Planck Research School (2024-)
Cooperation and dissemination
I collaborate with a wide range of national and international researchers from the Nordic countries, Europe, and the USA.
I have a close collaboration with Director Siri Håberg from Norway and Director Mikko Myrskylä from Germany, with whom I lead the EU-funded project BIOSFER, which investigates the causes of low fertility in modern society.
I also have close collaboration with Associate professor Zeyan Liew and Professor Onyebuchi Arah from the USA.
Teaching
I lead and teach the course Advanced Epidemiology at The Department of Public Health's programmes as well as the Ph.D. course Causal Inference in Health Sciences.
Through lectures and group work, students learn to understand research approaches and methods used in health science research.
I have previously (2012-2018) been the head of studies for master's degree programmes that build on health professional bachelor's programmes, as well as I have been the chairman of the joint study board.
Job responsibilities
As part of my research management, I am a proud and dedicated supervisor for several talented master's students, research assistants, PhD students and postdocs.
Additionally, I head the section Disease Etiology and Research Methodology at The Department of Public Health, where I am also part of the department management team.
Furthermore, I lead The Danish National Birth Cohort, which follows more than 90,000 Danes born 1996-2003 from conception and throughout life.
Keywords
- Public health
Areas of expertise
- Epidemiology
- Reprodctive epidemiology
- Fertility
- Puberty
- Fecundity
Fingerprint
- 1 Similar Profiles
Collaborations and top research areas from the last five years
-
PhD project: Maternal lifestyle during pregnancy and reproductive health in sons and daughters
Stokholm, M. V. (PI), Ramlau-Hansen, C. (Participant), Ernst, A. (Participant) & Håberg, S. E. (Participant)
01/02/2024 → 31/01/2027
Project: Research
-
Maternal lifestyle during pregnancy and reproductive health in sons and daughters
Stokholm, M. V. (PI), Ramlau-Hansen, C. (PI), Ernst, A. (Participant) & Håberg, S. E. (Participant)
01/02/2024 → 31/01/2027
Project: Research
-
Machine Learning identification of obesity causes in children, adolescents and young adults in Denmark and in the US
Dahm, C. C. (Collaborator) & Ramlau-Hansen, C. (Collaborator)
01/08/2023 → 31/07/2026
Project: Research
-
PUMA: Pubertal Development and Mental Health
Ramlau-Hansen, C. (PI)
01/04/2023 → 31/03/2028
Project: Research
-
PhD project: Pubertal development and mental health (anxiety, eating disorders, deliberate self-harm, and suicide attempts) in Danish adolescents
Ladehoff Thomsen, A. M. (PI), Ramlau-Hansen, C. (Participant), Ernst, A. (Participant), Strandberg-Larsen, K. (Participant), Rask, C. U. (Participant) & Arah, O. (Participant)
01/04/2023 → 17/03/2027
Project: Research
-
Atopic Dermatitis in Childhood and Biomarkers of Male Reproductive Health: A Danish National Birth Cohort Study
Kjersgaard, C. L., Gaml-Sørensen, A., Arendt, L. H., Tøttenborg, S. S., Hougaard, K. S., Toft, G., Arah, O. A., Bonde, J. P., Deleuran, M. & Ramlau-Hansen, C. H., Sept 2025, In: JEADV Clinical Practice. 4, 4, p. 741-750 10 p.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Open Access -
Atopic dermatitis in childhood and pubertal development: A nationwide cohort study
Kjersgaard, C. L., Ernst, A., Clemmensen, P. J., Harrits Lunddorf, L. L., Arendt, L. H., Brix, N., Arah, O. A., Deleuran, M. & Ramlau-Hansen, C. H., Apr 2025, In: JAAD International. 19, p. 21-31 11 p.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Open Access1 Citation (Scopus) -
Cohort Profile: The Danish National Birth Cohort from foetal life to young adulthood
Strandberg-Larsen, K., Cederkvist, L., Aakjær, A., Bjerregaard, A. A., Brix, N., Feenstra, B., Meder, I. K., Nohr, E. A., Olsen, S. F., Tøttenborg, S. S., Ramlau-Hansen, C. H., Vangsted, A. M. & Andersen, A. M. N., 1 Aug 2025, In: International Journal of Epidemiology. 54, 4, dyaf083.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
2 Citations (Scopus) -
Dietary Quality in Mid-Pregnancy and Pubertal Timing in Offspring: A Population-Based Cohort Study
Wibrand, C., Gaml-Sørensen, A., Bjerregaard, A. A., Olsen, S. F. & Ramlau-Hansen, C., Dec 2025, In: Clinical Nutrition ESPEN. 70, p. 18-28 11 p.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Open Access -
Environmental exposures and fecundability: The Norwegian Mother, Father, and Child Cohort study
Grindstad, T., Håberg, S. E., Basso, O., Hanevik, H. I., Caspersen, I. H., Arge, L. A., Ramlau-Hansen, C. H., Myrskyla, M. & Magnus, M. C., Jan 2025, In: International Journal of Hygiene and Environmental Health. 263, 9 p., 114492.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Open Access
Activities
-
Statens Serum Institut
Ramlau-Hansen, C. (Chair)
1 May 2024 → …Activity: Presentations, memberships, employment, ownership and other activities › Member of research network
-
Fertilitet: Er det vores kroppe, sind eller samfund, som svigter os?
Ramlau-Hansen, C. (Lecturer)
11 Mar 2025Activity: Presentations, memberships, employment, ownership and other activities › Lecture and oral contribution
-
Styregruppen for Odense Child Cohort
Ramlau-Hansen, C. (Member)
2023 → …Activity: Presentations, memberships, employment, ownership and other activities › Member of committee, council or board
-
The first results from the Puberty Cohort nested within the DNBC
Ramlau-Hansen, C. (Lecturer)
29 May 2019Activity: Presentations, memberships, employment, ownership and other activities › Lecture and oral contribution
-
Assessment of puberty in the Danish National Birth Cohort
Ramlau-Hansen, C. (Lecturer)
14 May 2019Activity: Presentations, memberships, employment, ownership and other activities › Lecture and oral contribution
Prizes
-
EliteForsk-prisen 2025
Ramlau-Hansen, C. (Recipient), 25 Feb 2025
Prize: Prizes, scholarships, distinctions
-
First prize for oral presentation at ”Day of Research” at Aarhus University Hospital
Ramlau-Hansen, C. (Recipient), 2007
Prize: Prizes, scholarships, distinctions
-
Receiver of a Sapere Aude Starting Grant from the Danish Council for Independent Research (DFF). The Sapere Aude programme is a talent development programme for the elite. The Starting grant is aimed at younger, very talented researchers
Ramlau-Hansen, C. (Recipient), 2015
Prize: Prizes, scholarships, distinctions
-
Recipient of ‘The main supervisor of the year, 2017 prize’ (the JCD prize) ”as an appreciation of an extraordinary effort in the guidance of PhD students” from the Graduate School of Health and the PhD Association at Health, Aarhus University
Ramlau-Hansen, C. (Recipient), 2017
Prize: Prizes, scholarships, distinctions
-
Scholarship awarded by the Danish-American Fulbright Commission in relation to eight months stay at UCLA
Ramlau-Hansen, C. (Recipient), 2005
Prize: Prizes, scholarships, distinctions
Press/Media
-
-
A targeted effort: Cecilia Ramlau-Hansen puts fertility on the political agenda in the Danish Parliament
18/09/2025
1 Media contribution
Press/Media: Press / Media
-
Does maternal stress during pregnancy lead to the development of cardiovascular disease in children?
12/08/2025
1 Media contribution
Press/Media: Press / Media
-
Forsker blev overrasket over unges drømme om at blive forældre: - De har troen på, at det nok skal gå
25/06/2025
1 Media contribution
Press/Media: Press / Media
-
Langt de fleste unge vil gerne have mindst to børn og bygge rede
23/06/2025
1 item of Media coverage, 1 Media contribution
Press/Media: Press / Media