Question 1

What is Leiden University known for?

Accepted Answer

In research, Leiden University stands highest in Health Sciences (#73 of 9,902 worldwide), Medicine (#67 of 8,541 worldwide) and Social Sciences (#96 of 9,585 worldwide), 2022-now. Relative to its size it is most specialised in Instrumentation, Transplantation and Anthropology (Instrumentation is 7.4× its share of world research).

Question 2

How does Leiden University rank in research?

Accepted Answer

Leiden University ranks #125 of 22,385 institutions worldwide on research quality in 2022-now (#197 all time), and #6 of 197 in the Netherlands.

Question 3

Who are the top researchers at Leiden University?

Accepted Answer

Ranked on the quality score, Eiko I. Fried, Michael V. Maseda and Ivo Labbé lead among researchers whose main affiliation is Leiden University.

Question 4

What are the most cited papers from Leiden University?

Accepted Answer

The most cited paper from Leiden University is "The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for Reporting Observational Studies" (Erik B von Elm, Douglas G. Altman, Matthias Egger et al., 2007), with 22,347 citations. Next come "Software survey: VOSviewer, a computer program for bibliometric mapping" (21,265) and "A global reference for human genetic variation" (20,444).

Question 5

Which research topics does Leiden University publish most on?

Accepted Answer

By volume in 2022-now: Rheumatoid Arthritis Research and Therapies, Stellar, planetary, and galactic studies, Astrophysics and Star Formation Studies and Cardiac Valve Diseases and Treatments.

Question 6

Which keywords describe research at Leiden University?

Accepted Answer

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Inflammation, Globalization, Human Rights, Star Formation, Nationalism, Autoantibodies and Treatment.

Question 7

Which fields of science does Leiden University work in?

Accepted Answer

In 2022-now, 32% of research at Leiden University is in Health Sciences, 32% in Social Sciences. Its largest fields are Medicine (30%), Social Sciences (17%), Biochemistry, Genetics and Molecular Biology (8%). It does 1.4× the world's share of Health Sciences.

Question 8

Which institutions have research most like Leiden University's?

Accepted Answer

University of Chicago has the research profile closest to Leiden University's (similarity 0.91 on a scale to 1), with both strong in Physics and Astronomy, followed by Yale University and University of Oxford.

Question 9

Is Leiden University's research output growing?

Accepted Answer

Output in 2022-2025 was 5% lower than in 2018-2021.