Irma Koivula

1.8k total citations
36 papers, 1.3k citations indexed

About

Irma Koivula is a scholar working on Epidemiology, Oncology and Clinical Biochemistry. According to data from OpenAlex, Irma Koivula has authored 36 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Epidemiology, 19 papers in Oncology and 10 papers in Clinical Biochemistry. Recurrent topics in Irma Koivula's work include Neutropenia and Cancer Infections (18 papers), Sepsis Diagnosis and Treatment (11 papers) and Bacterial Identification and Susceptibility Testing (10 papers). Irma Koivula is often cited by papers focused on Neutropenia and Cancer Infections (18 papers), Sepsis Diagnosis and Treatment (11 papers) and Bacterial Identification and Susceptibility Testing (10 papers). Irma Koivula collaborates with scholars based in Finland, United States and Sweden. Irma Koivula's co-authors include P. Helena Mäkelä, Sari Hämäläinen, M. Leinonen, Esa Jantunen, Auni Juutilainen, Taru Kuittinen, Kari Pulkki, Tapio Nousiainen, Irma Matinlauri and Outi Lyytikäinen and has published in prestigious journals such as The American Journal of Medicine, Emerging infectious diseases and Clinical Microbiology and Infection.

In The Last Decade

Irma Koivula

36 papers receiving 1.2k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Irma Koivula Finland 17 772 240 218 208 152 36 1.3k
Alexandra Heininger Germany 19 681 0.9× 265 1.1× 149 0.7× 99 0.5× 148 1.0× 64 1.4k
Patricia Pavèse France 24 644 0.8× 468 1.9× 104 0.5× 115 0.6× 220 1.4× 113 1.6k
José Bordón United States 24 1.3k 1.7× 376 1.6× 222 1.0× 94 0.5× 148 1.0× 69 2.1k
Francisc Schlaeffer Israel 24 735 1.0× 429 1.8× 228 1.0× 88 0.4× 233 1.5× 80 2.0k
Fabio Tumietto Italy 23 859 1.1× 404 1.7× 69 0.3× 129 0.6× 299 2.0× 53 2.1k
Giorgio Zanetti Switzerland 20 336 0.4× 373 1.6× 99 0.5× 361 1.7× 300 2.0× 48 1.4k
M. Kalin Sweden 22 1.0k 1.4× 295 1.2× 106 0.5× 107 0.5× 62 0.4× 44 1.5k
Nathalie Dartois France 21 851 1.1× 587 2.4× 120 0.6× 86 0.4× 460 3.0× 30 2.5k
Francesco Menichetti Italy 17 512 0.7× 499 2.1× 102 0.5× 538 2.6× 257 1.7× 51 1.4k
Miguel Sánchez García Spain 20 468 0.6× 439 1.8× 194 0.9× 175 0.8× 232 1.5× 55 1.8k

Countries citing papers authored by Irma Koivula

Since Specialization
Citations

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

Fields of papers citing papers by Irma Koivula

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Irma Koivula

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

All Works

20 of 20 papers shown
1.
2.
Patovirta, Riitta-Liisa, et al.. (2021). Support among healthcare workers for the new mandatory seasonal influenza vaccination policy and its effects on vaccination coverage. Annals of Medicine. 53(1). 384–390. 11 indexed citations
3.
Hämäläinen, Sari, Irma Koivula, Kari Pulkki, et al.. (2020). Plasma level of interleukin-18 and complicated course of febrile neutropenia in hematological patients after intensive chemotherapy. Cytokine. 129. 155021–155021. 1 indexed citations
4.
Purhonen, Anna‐Kaisa, Auni Juutilainen, Päivi Lakkisto, et al.. (2015). Human plasma cell-free DNA as a predictor of infectious complications of neutropenic fever in hematological patients. Infectious Diseases. 47(4). 255–259. 16 indexed citations
5.
Pelkonen, Sinikka, Jari Karhukorpi, Irma Koivula, et al.. (2013). Transmission ofStreptococcus equiSubspecieszooepidemicusInfection from Horses to Humans. Emerging infectious diseases. 19(7). 1041–1048. 96 indexed citations
6.
Purhonen, Anna‐Kaisa, Sari Hämäläinen, Kari Pulkki, et al.. (2012). Plasma copeptin in the assessment of febrile neutropenia. Peptides. 36(1). 129–132. 10 indexed citations
7.
Juutilainen, Auni, Sari Hämäläinen, Kari Pulkki, et al.. (2011). Biomarkers for bacteremia and severe sepsis in hematological patients with neutropenic fever: multivariate logistic regression analysis and factor analysis. Leukemia & lymphoma. 52(12). 2349–2355. 20 indexed citations
8.
9.
Juutilainen, Auni, Sari Hämäläinen, Taru Kuittinen, et al.. (2011). Serum cortisol and inflammatory response in neutropenic fever. Annals of Hematology. 90(12). 1467–1475. 5 indexed citations
10.
Koivula, Irma, Sari Hämäläinen, Esa Jantunen, et al.. (2011). Elevated procalcitonin predicts Gram-negative sepsis in haematological patients with febrile neutropenia. Scandinavian Journal of Infectious Diseases. 43(6-7). 471–478. 46 indexed citations
11.
Matinlauri, Irma, Auni Juutilainen, Sari Hämäläinen, et al.. (2010). Fibrinogen and antithrombin in hematological patients with neutropenic fever. Open Medicine. 5(4). 520–526. 2 indexed citations
12.
Issakainen, Jouni, Juha Salonen, Pirkko Koukila-Kähkölä, et al.. (2010). Deep, respiratory tract and ear infections caused byPseudallescheria(Scedosporium) andMicroascus(Scopulariopsis) in Finland. A 10-year retrospective multi-center study. Medical Mycology. 48(3). 458–465. 18 indexed citations
13.
Lyytikäinen, Outi, Veli-Jukka Anttila, Irma Koivula, et al.. (2010). Secular trend in candidemia and the use of fluconazole in Finland, 2004-2007. BMC Infectious Diseases. 10(1). 312–312. 82 indexed citations
14.
Hämäläinen, Sari, Auni Juutilainen, Irma Matinlauri, et al.. (2009). Serum vascular endothelial growth factor in adult haematological patients with neutropenic fever: a comparison with C‐reactive protein. European Journal Of Haematology. 83(3). 251–257. 15 indexed citations
15.
Hämäläinen, Sari, Taru Kuittinen, Irma Matinlauri, et al.. (2008). Severe sepsis in autologous stem cell transplant recipients: Microbiological aetiology, risk factors and outcome. Scandinavian Journal of Infectious Diseases. 41(1). 14–20. 30 indexed citations
16.
Hämäläinen, Sari, Taru Kuittinen, Irma Matinlauri, et al.. (2008). Neutropenic fever and severe sepsis in adult acute myeloid leukemia (AML) patients receiving intensive chemotherapy: Causes and consequences. Leukemia & lymphoma. 49(3). 495–501. 60 indexed citations
17.
Anttila, Veli‐Jukka, Juha Salonen, Pekka Ylipalosaari, et al.. (2007). A retrospective nationwide case study on the use of a new antifungal agent: patients treated with caspofungin during 2001–2004 in Finland. Clinical Microbiology and Infection. 13(6). 606–612. 4 indexed citations
18.
Ruotsalainen, Eeva, Asko Järvinen, Irma Koivula, et al.. (2005). Levofloxacin does not decrease mortality in Staphylococcus aureus bacteraemia when added to the standard treatment: a prospective and randomized clinical trial of 381 patients. Journal of Internal Medicine. 259(2). 179–190. 50 indexed citations
19.
Koivula, Irma, et al.. (1997). Clinical Efficacy of Pneumococcal Vaccine in the Elderly. The American Journal of Medicine. 103(4). 281–290. 166 indexed citations
20.
Skogberg, Kirsi, Petri Ruutu, Irma Koivula, Hannele Jousimies–Somer, & Ville Valtonen. (1994). Effect of immunosuppressive therapy on the clinical presentation of legionellosis. European Journal of Clinical Microbiology & Infectious Diseases. 13(7). 535–541. 10 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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