Karolinska Institute (KI)

Karolinska Institutet (KI)

Sweden

Time frame: 1 May 2025 - 30 April 2026

Profile

The Nature Index tracks primary research articles from 178 applied, health, natural and social sciences journals, across many different publishers, chosen by an independent group of researchers. The Nature Index provides absolute Count of primary research articles and fractional Share counts of author contribution to articles. The positions in the table below reflect Karolinska Institute (KI)'s position overall, domestically, within their sector, and in various subject areas based on their Share. Each position links to the corresponding table where Karolinska Institute (KI) is listed.

Position by research output Share

Global Sweden
Overall 158 1
Academic 145 1

Position by research output Share in subject areas

Global Sweden
Applied sciences 798 10
Health sciences 25 1
Natural sciences 404 6
Biological sciences 102 1
Chemistry 796 9
Earth & environmental sciences 1462 15
Physical sciences 1614 11
Social sciences 418 7

Research

Karolinska Institute (KI) has the following research output in the current window (1 May 2025 - 30 April 2026) of the Nature Index. Click on Count to view a list of articles representing the corresponding Share value.

Overall research output

Count Share
Overall 797 164.73

Overall Count and Share for 'Karolinska Institute (KI)' based on the 12-month time frame mentioned above.

View all articles

Research outputs by subject area

Note: Natural sciences includes biological sciences, chemistry, Earth & environmental sciences and physical sciences.
Subject Count Share
Applied sciences 40 5.27
Biological sciences 158 29.32
Chemistry 23 4.69
Earth & environmental sciences 5 0.35
Health sciences 557 122.51
Physical sciences 4 0.36
Social sciences 10 2.23

Note: Hover over the donut graph to view the Share for each subject.

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Leading research topics

In the Current Index (12-month rolling window), Karolinska Institute (KI) published the most articles in these research topics. Learn more about Nature Research Intelligence Topics.

View all topics

Share output for the past 5 years

Subject area or journal group 2021 2022 2023 2024 2025
Overall 93 159 157 172 165
Applied sciences 3 7 5 6 8
Health sciences 52 111 115 127 126
Natural sciences 37 39 36 38 29
Biological sciences 35 35 29 33 23
Chemistry 2 3 6 4 5
Earth & environmental sciences 0 1 1 1 1
Physical sciences 0 0 0 0 0
Social sciences 0 2 1 1 1
Nature & Science 2 3 3 6 3

Institution benchmarking

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Collaboration

Nature Index collaborations highlight fruitful collaborations that lead to high quality research around the world. A collaboration can be between any two institutions or locations co-authoring at least one article in the journals tracked by the Nature Index. The collaboration score between two institutions is the sum of each of their Shares on the papers to which both have contributed. The table and charts below highlight the leading collaborators with Karolinska Institute (KI).

International vs domestic collaboration by Share

Type Percentage
International (438 institutions) 39.4%
Domestic (106 institutions) 60.6%

Note: Hover over the pie chart to view the Share for each collaboration type.

Note: Hover over the graph to view collaboration by percentage of Share.

Top 5 domestic collaborators with Karolinska Institute (KI) by Share

Collaborating institutions

Note: Hover over the bars to view details about each institution's Share.

Collaborating Institution Collaborators' Share Collaboration Score
Karolinska University Hospital 64.88 / 29.74 94.63
Uppsala University (UU) 44.23 / 30.09 74.32
Science for Life Laboratory (SciLifeLab) 27.50 / 34.11 61.61
Stockholm University 30.50 / 16.58 47.09
KTH Royal Institute of Technology 31.10 / 13.83 44.93

Top 5 international collaborators with Karolinska Institute (KI) by Share

Collaborating institutions

Note: Hover over the bars to view details about each institution's Share.

Collaborating Institution Collaborators' Share Total Share
Harvard University 8.61 / 12.10 20.71
University of Copenhagen (UCPH) 8.17 / 7.22 15.39
City University of Hong Kong (CityU) 1.19 / 13.04 14.23
French National Centre for Scientific Research (CNRS) 8.93 / 2.15 11.09
National Institute for Health and Medical Research (INSERM) 8.74 / 2.18 10.91

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Relationships

Affiliated institutions

The following affiliated institutions are wholly owned, operated, administered or contains research facilities for Karolinska Institute (KI). All affiliations for an affiliated institution are credited to the institution to which it is affiliated. Each of the affiliated institutions listed below has its own research profile.

Affiliated joint institutions and consortia

Represents joint institutions and consortia for which the institution is designated as a partner institution. Each partner institution of a joint institution or consortium receives an equivalent Share for every affiliation in which the consortium is included.