2026 Jørn Olsen: Medicine Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	National Ranking	Publications	Citations
Medicine	137	1896	25	1179	78375

Jørn Olsen publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Jørn Olsen sits on this spectrum.

101 publications 1,796+

This scientist: 1,179 publications — 97th percentile

97% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Jørn Olsen D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Jørn Olsen sits on this spectrum.

70 D-Index 217+

This scientist: 137 D-Index — 91st percentile

91% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

Jørn Olsen is affiliated with Aarhus University in Denmark and has a multidisciplinary research profile spanning Medicine, Earth and Planetary Sciences, and Environmental Science. Their work prominently intersects various subfields such as Oceanography, Ecology, Public Health, Environmental and Occupational Health, Pediatrics, Perinatology and Child Health, and Plant Science.

The scientist's research primarily focuses on topics including marine and coastal plant biology, marine biology and ecology research, coastal wetland ecosystem dynamics, and issues related to pregnancy and medication impact. Other areas of interest cover pharmacological effects and toxicity studies, maternal mental health during pregnancy and postpartum, and coral and marine ecosystems studies.

Recent publications by Jørn Olsen illustrate the range and depth of their scientific contributions. Notable papers include:

"Paracetamol use during pregnancy - a call for precautionary action" (2021), published in Nature Reviews Endocrinology
"Improved chromosome-level genome assembly and annotation of the seagrass, Zostera marina (eelgrass)" (2021), published in F1000Research
"A Pleistocene legacy structures variation in modern seagrass ecosystems" (2022), published in Proceedings of the National Academy of Sciences
"Seagrass genomes reveal ancient polyploidy and adaptations to the marine environment" (2024), published in Nature Plants
"The Seagrass Methylome Is Associated With Variation in Photosynthetic Performance Among Clonal Shoots" (2020), published in Frontiers in Plant Science

Jørn Olsen frequently collaborates with researchers such as Mathieu Cusson, Kevin A. Hovel, Per-Olav Moksnes, Jennifer L. Ruesink, and Thorsten B. H. Reusch, each having coauthored multiple publications with Olsen.

Among the venues in which Olsen has published most often are:

Nature Reviews Endocrinology
Nature Plants
Frontiers in Plant Science
Global Ecology and Biogeography
bioRxiv (Cold Spring Harbor Laboratory)

Best Publications

Randomised study of screening for colorectal cancer with faecal-occult-blood test

Ole Kronborg;Claus Fenger;Jørn Olsen;Ole Dan Jørgensen

3788
Citations
The Danish National Hospital Register. A valuable source of data for modern health sciences.

T F Andersen;M Madsen;J Jørgensen;L Mellemkjoer

3107
Citations
Maternal age and fetal loss: population based register linkage study

Anne-Marie Nybo Andersen;Jan Wohlfahrt;Peter Christens;Jørn Olsen

2153
Citations
The Danish National Birth Cohort - its background, structure and aim:

Jørn Olsen;Mads Melbye;Sjurdur Frodi Olsen;Thorkild I.A. Sørensen

1212
Citations
The Danish Medical Birth Registry.

Knudsen Lb;Olsen J

1161
Citations
Maternal lifestyle factors in pregnancy risk of attention deficit hyperactivity disorder and associated behaviors: Review of the current evidence

Karen Markussen Linnet;Søren Dalsgaard;Carsten Obel;Kirsten Wisborg

1130
Citations
A Population-Based Study of Measles, Mumps, and Rubella Vaccination and Autism

Kreesten Meldgaard Madsen;Anders Hviid;Mogens Vestergaard;Diana Schendel

1053
Citations
Relation between semen quality and fertility: a population-based study of 430 first-pregnancy planners

Jens Peter E Bonde;Erik Ernst;Tina Kold Jensen;Niels Henrik I Hjollund

929
Citations
Perfluorinated chemicals and fetal growth: a study within the Danish National Birth Cohort.

Chunyuan Fei;Joseph K. McLaughlin;Robert E. Tarone;Jørn Olsen

817
Citations
Combined associations of prepregnancy body mass index and gestational weight gain with the outcome of pregnancy

Ellen A. Nohr;Michael Vaeth;Jennifer L. Baker;Thorkild I. A. Sørensen

805
Citations
Does Low Participation in Cohort Studies Induce Bias

Ellen Aagaard Nohr;Morten Frydenberg;Tine Brink Henriksen;Jorn Olsen

776
Citations
Mortality in parents after death of a child in Denmark: a nationwide follow-up study

Jiong Li;Dorthe Hansen Precht;Preben Bo Mortensen;Jørn Olsen

675
Citations
A Framework for Evaluation of Secondary Data Sources for Epidemiological Research

Henrik Toft Sørensen;Svend Sabroe;Jørn Olsen

636
Citations
Subfecundity in overweight and obese couples

C.H. Ramlau-Hansen;A.M. Thulstrup;E.A. Nohr;J.P. Bonde

624
Citations
The Danish Medical Birth Register.

Mette Bliddal;Anne Broe;Anne Broe;Anton Pottegård;Jørn Olsen

510
Citations
Prepregnancy obesity and fetal death: a study within the Danish National Birth Cohort.

Ellen Aagaard Nohr;Bodil Hammer Bech;Michael John Davies;Morten Frydenberg

469
Citations
Hospitalization for Mental Illness among Parents after the Death of a Child

Jiong Li;Thomas Munk Laursen;Dorthe Hansen Precht;Jørn Olsen

461
Citations
Long-term risk of epilepsy after traumatic brain injury in children and young adults: a population-based cohort study.

Jakob Christensen;Jakob Christensen;Marianne G Pedersen;Carsten B Pedersen;Per Sidenius

461
Citations
Rheumatoid arthritis and cancer risk.

L. Mellemkjær;M.S. Linet;G. Gridley;M. Frisch

452
Citations
Acetaminophen Use During Pregnancy, Behavioral Problems, and Hyperkinetic Disorders

Zeyan Liew;Beate Ritz;Cristina Rebordosa;Cristina Rebordosa;Pei-Chen Lee;Pei-Chen Lee

433
Citations

Frequent Co-Authors

Henrik Toft Sørensen Aarhus University

Ellen A. Nohr University of Southern Denmark

Tine Brink Henriksen Aarhus University Hospital

Jens Peter Bonde University of Copenhagen

Kaare Christensen University of Southern Denmark

Lars Pedersen Aarhus University

Beate Ritz University of California, Los Angeles

Mads Melbye University of Copenhagen

Mika Gissler Finnish Institute for Health and Welfare

Onyebuchi A. Arah University of California, Los Angeles

External Links

Personal website of Jørn Olsen

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