Kerttu Irjala

8.4k total citations · 1 hit paper
211 papers, 6.4k citations indexed

About

Kerttu Irjala is a scholar working on Endocrinology, Diabetes and Metabolism, Physiology and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Kerttu Irjala has authored 211 papers receiving a total of 6.4k indexed citations (citations by other indexed papers that have themselves been cited), including 55 papers in Endocrinology, Diabetes and Metabolism, 32 papers in Physiology and 27 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Kerttu Irjala's work include Ovarian function and disorders (19 papers), Iron Metabolism and Disorders (16 papers) and Hormonal and reproductive studies (16 papers). Kerttu Irjala is often cited by papers focused on Ovarian function and disorders (19 papers), Iron Metabolism and Disorders (16 papers) and Hormonal and reproductive studies (16 papers). Kerttu Irjala collaborates with scholars based in Finland, Denmark and Sweden. Kerttu Irjala's co-authors include Allan Rajamäki, Kari Punnonen, Pauli Suominen, Pertti Koskinen, Timo Möttönen, Marjo Lehtonen-Veromaa, Sirkka‐Liisa Kivelä, Jorma Viikari, Tapani Rönnemaa and Raimo Isoaho and has published in prestigious journals such as Circulation, Blood and Journal of the American College of Cardiology.

In The Last Decade

Kerttu Irjala

210 papers receiving 6.1k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Serum Transferrin Receptor and Its Ratio to Serum Ferritin in the Diagnosis of Iron Deficiency

1997 662 citations Kerttu Irjala et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Kerttu Irjala Finland	39	1.5k	1.2k	1.1k	819	763	211	6.4k
D. E. Grobbee Netherlands	37	1.1k 0.7×	937 0.8×	318 0.3×	533 0.7×	877 1.1×	90	4.7k
Peter Bárány Sweden	55	1.6k 1.1×	1.0k 0.9×	434 0.4×	2.3k 2.8×	361 0.5×	233	11.1k
Frederick J. Kaskel United States	36	483 0.3×	481 0.4×	494 0.5×	626 0.8×	654 0.9×	138	8.2k
Martina Montagnana Italy	52	1.5k 1.0×	1.0k 0.9×	516 0.5×	2.3k 2.9×	472 0.6×	345	11.3k
Sydney Tang Hong Kong	51	641 0.4×	676 0.6×	457 0.4×	649 0.8×	271 0.4×	314	9.4k
T W Meade United Kingdom	45	1.3k 0.8×	1.3k 1.1×	233 0.2×	652 0.8×	794 1.0×	132	8.3k
Adrian Covic Romania	55	763 0.5×	772 0.6×	324 0.3×	819 1.0×	301 0.4×	314	9.4k
Ichiei Narita Japan	46	575 0.4×	633 0.5×	271 0.3×	1.2k 1.5×	489 0.6×	560	9.2k
John Lindenbaum United States	39	946 0.6×	482 0.4×	335 0.3×	787 1.0×	278 0.4×	85	6.8k
Yoshihiro Kokubo Japan	50	585 0.4×	1.6k 1.4×	252 0.2×	1.0k 1.2×	1.2k 1.6×	247	8.2k

Countries citing papers authored by Kerttu Irjala

Since Specialization

Citations

This map shows the geographic impact of Kerttu Irjala'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 Kerttu Irjala with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kerttu Irjala more than expected).

Fields of papers citing papers by Kerttu Irjala

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kerttu Irjala. 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 Kerttu Irjala. The network helps show where Kerttu Irjala may publish in the future.

Co-authorship network of co-authors of Kerttu Irjala

This figure shows the co-authorship network connecting the top 25 collaborators of Kerttu Irjala. A scholar is included among the top collaborators of Kerttu Irjala 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 Kerttu Irjala. Kerttu Irjala is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Salminen, Marika, Kerttu Irjala, Marja-Kaisa Koivula, et al.. (2024). High-sensitivity cardiac troponin T and N-terminal b-type natriuretic propeptide are associated with cardiac and all-cause mortality in older adults – A population-based ten-year follow-up study. Clinica Chimica Acta. 567. 120116–120116. 1 indexed citations

Salminen, Marika, Kerttu Irjala, Päivi Korhonen, et al.. (2023). Re-examination of successful agers with lower biological than chronological age still after a 20-year follow-up period. BMC Geriatrics. 23(1). 128–128. 7 indexed citations

Salminen, Marika, Marja-Kaisa Koivula, Kari Pulkki, et al.. (2021). A practical laboratory index to predict institutionalization and mortality – an 18-year population-based follow-up study. BMC Geriatrics. 21(1). 139–139. 7 indexed citations

Gunell, Marianne, Kerttu Irjala, Jukka Vakkila, et al.. (2016). Comprehensive real-time epidemiological data from respiratory infections in Finland between 2010 and 2014 obtained from an automated and multianalyte mariPOC® respiratory pathogen test. European Journal of Clinical Microbiology & Infectious Diseases. 35(3). 405–413. 12 indexed citations

Ahotupa, Markku, et al.. (2012). Circulating oxidised LDL lipids, when proportioned to HDL-c, emerged as a risk factor of all-cause mortality in a population-based survival study. Age and Ageing. 42(1). 110–113. 27 indexed citations

Salminen, Marika, et al.. (2011). Metabolic syndrome and vascular risk: a 9-year follow-up among the aged in Finland. Acta Diabetologica. 48(2). 157–165. 14 indexed citations

Jahnukainen, Timo, et al.. (2008). Long‐term follow‐up of renal function after high‐dose methotrexate treatment in children. Pediatric Blood & Cancer. 51(4). 535–539. 27 indexed citations

Koskinen, Pertti, Kerttu Irjala, Minna Löppönen, et al.. (2007). Renal impairment compromises the use of total homocysteine and methylmalonic acid but not total vitamin B12 and holotranscobalamin in screening for vitamin B12 deficiency in the aged. Clinical Chemistry and Laboratory Medicine (CCLM). 45(2). 197–201. 19 indexed citations

Vahlberg, Tero, et al.. (2007). Associations of Sex Hormone Concentrations with Health and Life Satisfaction in Elderly Men. Endocrine Practice. 13(7). 743–749. 24 indexed citations

10.

Saaresranta, Tarja, Kerttu Irjala, Tero Aittokallio, & Olli Polo. (2005). Sleep quality, daytime sleepiness and fasting insulin levels in women with chronic obstructive pulmonary disease. Respiratory Medicine. 99(7). 856–863. 17 indexed citations

11.

Isoaho, Raimo, et al.. (2003). Serum cystatin C in the aged: relationships with health status. American Journal of Kidney Diseases. 42(1). 36–43. 65 indexed citations

12.

Koistinen, P., et al.. (2000). EPO, red cells, and serum transferrin receptor in continuous and intermittent hypoxia. Medicine & Science in Sports & Exercise. 32(4). 800–804. 53 indexed citations

13.

Lehtonen-Veromaa, Marjo, Timo Möttönen, Kerttu Irjala, et al.. (1999). Vitamin D intake is low and hypovitaminosis D common in healthy 9− to 15-year-old Finnish girls. European Journal of Clinical Nutrition. 53(9). 746–751. 189 indexed citations

14.

Irjala, Kerttu, et al.. (1998). Preanalytical and analytical factors affecting laboratory results. Annals of Medicine. 30(3). 267–272. 20 indexed citations

15.

Anttila, Leena, Risto Erkkola, Pertti Koskinen, et al.. (1993). Hormonal responses to physical exercise in patients with polycystic ovarian syndrome. Fertility and Sterility. 60(2). 262–267. 13 indexed citations

16.

Petersen, Per Hyltoft, et al.. (1993). 5.1 External Analytical Quality Assurance for Proteins. Upsala Journal of Medical Sciences. 98(3). 241–258. 5 indexed citations

17.

Forsström, Jari, Pirjo Nuutila, & Kerttu Irjala. (1991). Using the ID3 Algorithm to find Discrepant Diagnoses from laboratory Databases of Thyroid Patients. Medical Decision Making. 11(3). 171–175. 12 indexed citations

18.

Nykänen, Pirkko, Kerttu Irjala, Matti Välimäki, Kari Saarinen, & Jorma Viikari. (1989). Knowledge Modelling and Representation to Support an Interpretation Task: Experiences from Thyroid Function Diagnostics.. 467–472. 3 indexed citations

19.

Saarinen, Kari, Pirkko Nykänen, Kerttu Irjala, Jorma Viikari, & Matti Välimäki. (1988). Interpretation of Test Results in Clinical Chemistry: A Protosystem for Thyroid Function Diagnostics.. 13(5). 241–251. 3 indexed citations

20.

Ruuskanen, Olli, et al.. (1985). C-reactive protein in respiratory virus infections. The Journal of Pediatrics. 107(1). 97–100. 75 indexed citations

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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