Projects per year
Personal profile
Research
I use advanced epidemiological and statistical methods to investigate the causes of the most common urogenital malformations in boys and to find explanations for changes in our reproduction. My research is based on large Danish registers and detailed clinical databases and cohorts.
I am involved in establishing larger clinical studies where new strategies for diagnosis and treatment are tested. Another goal is to improve knowledge about the rare conditions within my subspecialty.
Profile
I am a specialist in pediatric urology and a clinical lecturer at Aarhus University Hospital. My research focuses on how lifestyle, environment, and genetics influence the risk of congenital urinary tract anomalies, changes in pubertal development, and fertility. I also investigate how these conditions affect long-term health and work on improving the diagnosis and treatment of urinary tract cancer. I became a doctor in 2014 and completed my PhD in 2019.
Cooperation and dissemination
I collaborate with a wide range of clinicians from various specialties both domestically and internationally, including pediatrics, molecular medicine, and clinical genetics. My long-standing relationship with the Department of Public Health, Aarhus University, also makes their epidemiological and biostatistical section very close collaborators with many ongoing projects. For several years, Associate Professor Zeyan Liew, Yale, and Onyibuchi Arah, UCLA (Professor Skou Professor, AU) have been close collaborators.
Teaching
I am part of the PhD course "Causal Inference in Health Science" at Aarhus University. My interest in these methods arose during a research stay at the University of California, Los Angeles, where I saw their enormous potential.
I work to strengthen collaboration between theorists and clinicians through new projects and improve the handling of clinical data. I also teach medical students and am a co-course leader for a research training course for future urologists. Additionally, I am a Statistical Editor at the Journal of Pediatric Urology.
Areas of expertise
- Epidemiology
- Puberty
- Urology
- Causal Inference
- Pediatric urology
Fingerprint
- 1 Similar Profiles
Collaborations and top research areas from the last five years
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PhD project: Maternal lifestyle during pregnancy and reproductive health in sons and daughters
Langergaard, M. J. (PI), Ramlau-Hansen, C. (Participant), Ernst, A. (Participant) & Håberg, S. E. (Participant)
01/02/2024 → 31/01/2027
Project: Research
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Maternal lifestyle during pregnancy and reproductive health in sons and daughters
Langergaard, M. J. (PI), Ramlau-Hansen, C. (PI), Ernst, A. (Participant) & Håberg, S. E. (Participant)
01/02/2024 → 31/01/2027
Project: Research
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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
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PhD project: GreenBladder: Early detection of bladder cancer in residents in Greenland using a urinary marker and a mobile cystoscopy unit
Fryd, N. D. (PI), Jensen, J. B. (PI), Ernst, A. (Participant), Bernth-Andersen, S. O. (Participant) & Dyrskjøt, L. (Participant)
01/04/2023 → 01/03/2026
Project: Research
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PhD project: Study of bladder cancer detection in standard white light versus AI-supported endoscopy
Hjort, P. B. (PI), Jensen, J. E. (Participant), Bjerregaard, J. (Participant) & Ernst, A. (Participant)
01/03/2023 → 01/05/2026
Project: Research
Research output
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An International Delphi-Based Study for Developing a Core Outcome Set for Hypospadias Surgery
Leunbach, T. L., Yankovic, F., Springer, A., Wisniewski, A., Burgu, B., Braga, L., Ernst, A., Lucas-Herald, A., O'Toole, S., Ahmed, S. F. & Rawashdeh, Y. F., 18 Jan 2025, (E-pub / Early view) In: Sexual Development. p. 1-7 7 p.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
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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) -
Maternal asthma in pregnancy and pubertal timing in daughters and sons: a population-based cohort study
Kjersgaard, C. L., Ernst, A., Sand, S. A., Clemmensen, P. J., Brix, N., Lunddorf, L. L. H. & Ramlau-Hansen, C. H., Jun 2025, In: Annals of Epidemiology. 106, p. 40-47 8 p.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Open Access -
Parental age at birth and biomarkers of fecundity in young Danish men
Ernst, A., Brix, N., Gaml-Sørensen, A., Arendt, L. H., Toft, G., Tøttenborg, S. S., Hougaard, K. S., Bonde, J. P. E. & Ramlau-Hansen, C. H., Jan 2025, In: Andrology. 13, 1, p. 89-100 12 p., 13536.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Open Access1 Citation (Scopus) -
Prevalence, Incidence, and Age at Diagnosis of Boys With Hypospadias: A Nationwide Population-Based Epidemiological Study
Leunbach, T. L., Berglund, A., Ernst, A., Hvistendahl, G. M., Rawashdeh, Y. F. & Gravholt, C. H., Mar 2025, In: Journal of Urology. 213, 3, p. 350-358 9 p.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
4 Citations (Scopus)
Prizes
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Best poster presentation, Danish Society for Epidemiology Annual Conference, Denmark
Ernst, A. (Recipient), 2017
Prize: Prizes, scholarships, distinctions
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Best poster presentation, PhD Day 2017
Ernst, A. (Recipient), 2017
Prize: Prizes, scholarships, distinctions
Press/Media
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Sen første menstruation hos mødre og lavere sædkvalitet hos deres nu voksne sønner
Langergaard, M. J., Ramlau-Hansen, C. & Ernst, A.
04/05/2023
1 Media contribution
Press/Media: Press / Media
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Rygning påvirker risiko for misdannelser i drengebørns kønsdele
Lindbo, D., Ramlau-Hansen, C. & Ernst, A.
20/10/2022
1 Media contribution
Press/Media: Press / Media
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Hvorfor bliver pubertetsalderen ved med at falde?
15/06/2021
1 Media contribution
Press/Media: Press / Media
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Waterproofing and non-stick pans may lead to earlier puberty among girls
31/01/2019
1 Media contribution
Press/Media: Press / Media
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Pubertetsalderen hos danske børn ser ud til fortsat at falde
Brix, N., Ernst, A., Lauridsen, L. L. B., Parner, E. T., Støvring, H., Olsen, J., Henriksen, T. B. & Ramlau-Hansen, C.
23/11/2018
1 Media contribution
Press/Media: Press / Media