Ilka Ratjen

574 total citations
17 papers, 388 citations indexed

About

Ilka Ratjen is a scholar working on Physiology, Public Health, Environmental and Occupational Health and Oncology. According to data from OpenAlex, Ilka Ratjen has authored 17 papers receiving a total of 388 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Physiology, 7 papers in Public Health, Environmental and Occupational Health and 4 papers in Oncology. Recurrent topics in Ilka Ratjen's work include Nutritional Studies and Diet (6 papers), Diet and metabolism studies (3 papers) and Cancer survivorship and care (3 papers). Ilka Ratjen is often cited by papers focused on Nutritional Studies and Diet (6 papers), Diet and metabolism studies (3 papers) and Cancer survivorship and care (3 papers). Ilka Ratjen collaborates with scholars based in Germany, United States and United Kingdom. Ilka Ratjen's co-authors include Wolfgang Lieb, Manja Koch, Ute Nöthlings, Sabrina Schlesinger, Romina di Giuseppe, Sabina Waniek, Jochen Hampe, J Enderlé, Sandra Plachta‐Danielzik and Greta Burmeister and has published in prestigious journals such as American Journal of Clinical Nutrition, Journal of Nutrition and International Journal of Cancer.

In The Last Decade

Ilka Ratjen

16 papers receiving 379 citations

Peers

Countries citing papers authored by Ilka Ratjen

Since Specialization

Citations

This map shows the geographic impact of Ilka Ratjen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ilka Ratjen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ilka Ratjen more than expected).

Fields of papers citing papers by Ilka Ratjen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ilka Ratjen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ilka Ratjen. The network helps show where Ilka Ratjen may publish in the future.

Co-authorship network of co-authors of Ilka Ratjen

This figure shows the co-authorship network connecting the top 25 collaborators of Ilka Ratjen. A scholar is included among the top collaborators of Ilka Ratjen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ilka Ratjen. Ilka Ratjen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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17 of 17 papers shown

#	Work	Indexed citations
1	First insights into microbial changes within an Inflammatory Bowel Disease Family Cohort study 2025 ·Gut Microbes ·Philipp Rausch, Ilka Ratjen, Lukas Tittmann, J Enderlé, Eike Matthias Wacker, (unknown), Malte Rühlemann, (unknown), Pierre Ellul, (unknown), Jonas Halfvarson, Dirk Roggenbuck, David Ellinghaus, Gunnar Jacobs, Michael Krawczak, Stefan Schreiber, Corinna Bang, Wolfgang Lieb, André Franke	1
2	Greater adherence to the Healthy Nordic Food Index is associated with lower all-cause mortality in a population-based sample from northern Germany 2023 ·European Journal of Nutrition ·(unknown), Ilka Ratjen, Katharina S. Weber, (unknown), (unknown), Sabina Waniek, (unknown), Wolfgang Lieb	0
3	Kennzahl Symptom- und Bedarfserfassung in der Hämatologie – Beobachtungen aus der Praxis 2023 ·Christina Gerlach, Ilka Ratjen, J. Brandt, (unknown), Bernd Alt‐Epping, (unknown), Anne Letsch, (unknown)	1
4	Post-diagnostic reliance on plant-compared with animal-based foods and all-cause mortality in omnivorous long-term colorectal cancer survivors 2021 ·American Journal of Clinical Nutrition ·Ilka Ratjen, J Enderlé, Greta Burmeister, Manja Koch, Ute Nöthlings, Jochen Hampe, Wolfgang Lieb	17
5	Patient Reported Outcomes in Chronic Inflammatory Diseases: Current State, Limitations and Perspectives 2021 ·Frontiers in Immunology ·Florian Tran, Jan Henrik Schirmer, Ilka Ratjen, Wolfgang Lieb, Philip Helliwell, Johan Burisch, Juliane Schulz, (unknown), (unknown), Ulf Müller‐Ladner, Stefan Schreiber, Bimba F. Hoyer	17
6	Plasma boron concentrations in the general population: a cross-sectional analysis of cardio-metabolic and dietary correlates 2021 ·European Journal of Nutrition ·Katharina S. Weber, Ilka Ratjen, J Enderlé, Ulrike Seidel, Gerald Rimbach, Wolfgang Lieb	17
7	Plasma Lithium Levels in the General Population: A Cross-Sectional Analysis of Metabolic and Dietary Correlates 2020 ·Nutrients ·J Enderlé, (unknown), Romina di Giuseppe, Manja Koch, Ulrike Seidel, Katharina S. Weber, Marc Birringer, Ilka Ratjen, Gerald Rimbach, Wolfgang Lieb	16
8	Adherence to a plant-based diet in relation to adipose tissue volumes and liver fat content 2020 ·American Journal of Clinical Nutrition ·Ilka Ratjen, Jakub Morze, J Enderlé, Marcus Both, Jan Borggrefe, Hans‐Peter Müller, Jan Kassubek, Manja Koch, Wolfgang Lieb	36
9	Gestationsdiabetes mellitus nach WHO-2013-Kriterien – Qualitätsanalyse von 1074 Einzelschwangerschaften aus einer Diabetes-Schwerpunktpraxis (prospektive Kohortenstudie 2012 – 2017) 2019 ·Diabetologie und Stoffwechsel ·Helmut Kleinwechter, Ilka Ratjen, (unknown), (unknown)	3
10	Health-related quality of life in long-term survivors of colorectal cancer and its association with all-cause mortality: a German cohort study 2018 ·BMC Cancer ·Ilka Ratjen, Clemens Schafmayer, J Enderlé, Romina di Giuseppe, Sabina Waniek, Manja Koch, Greta Burmeister, Ute Nöthlings, Jochen Hampe, Sabrina Schlesinger, Wolfgang Lieb	69
11	Association of Circulating Vitamin E (α- and γ-Tocopherol) Levels with Gallstone Disease 2018 ·Nutrients ·Sabina Waniek, Romina di Giuseppe, Tuba Esatbeyoglu, Ilka Ratjen, J Enderlé, Gunnar Jacobs, Ute Nöthlings, Manja Koch, Sabrina Schlesinger, Gerald Rimbach, Wolfgang Lieb	17
12	Association between the dietary inflammatory index and all‐cause mortality in colorectal cancer long‐term survivors 2018 ·International Journal of Cancer ·Ilka Ratjen, Nitin Shivappa, Clemens Schafmayer, Greta Burmeister, Ute Nöthlings, Jochen Hampe, James R. Hébert, Wolfgang Lieb, Sabrina Schlesinger	19
13	Vitamin E (α- and γ-Tocopherol) Levels in the Community: Distribution, Clinical and Biochemical Correlates, and Association with Dietary Patterns 2017 ·Nutrients ·Sabina Waniek, Romina di Giuseppe, Tuba Esatbeyoglu, Sandra Plachta‐Danielzik, Ilka Ratjen, Gunnar Jacobs, Ute Nöthlings, Manja Koch, Sabrina Schlesinger, Gerald Rimbach, Wolfgang Lieb	35
14	Postdiagnostic physical activity, sleep duration, and TV watching and all-cause mortality among long-term colorectal cancer survivors: a prospective cohort study 2017 ·BMC Cancer ·Ilka Ratjen, Clemens Schafmayer, Romina di Giuseppe, Sabina Waniek, Sandra Plachta‐Danielzik, Manja Koch, Greta Burmeister, Ute Nöthlings, Jochen Hampe, Sabrina Schlesinger, Wolfgang Lieb	30
15	Association of Vitamin E Levels with Metabolic Syndrome, and MRI-Derived Body Fat Volumes and Liver Fat Content 2017 ·Nutrients ·Sabina Waniek, Romina di Giuseppe, Sandra Plachta‐Danielzik, Ilka Ratjen, Gunnar Jacobs, Manja Koch, Jan Borggrefe, Marcus Both, Hans‐Peter Müller, Jan Kassubek, Ute Nöthlings, Tuba Esatbeyoglu, Sabrina Schlesinger, Gerald Rimbach, Wolfgang Lieb	40
16	Postdiagnostic Mediterranean and Healthy Nordic Dietary Patterns Are Inversely Associated with All-Cause Mortality in Long-Term Colorectal Cancer Survivors 2017 ·Journal of Nutrition ·Ilka Ratjen, Clemens Schafmayer, Romina di Giuseppe, Sabina Waniek, Sandra Plachta‐Danielzik, Manja Koch, Ute Nöthlings, Jochen Hampe, Sabrina Schlesinger, Wolfgang Lieb	55
17	Type 1 Diabetes Mellitus and Exercise in Competitive Athletes 2015 ·Experimental and Clinical Endocrinology & Diabetes ·Ilka Ratjen, Katharina S. Weber, Michael Roden, Markus Herrmann, Karsten Müssig	15

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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