Niklas Ekerstad

1.2k total citations
36 papers, 742 citations indexed

About

Niklas Ekerstad is a scholar working on Geriatrics and Gerontology, Economics and Econometrics and Physiology. According to data from OpenAlex, Niklas Ekerstad has authored 36 papers receiving a total of 742 indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Geriatrics and Gerontology, 18 papers in Economics and Econometrics and 14 papers in Physiology. Recurrent topics in Niklas Ekerstad's work include Frailty in Older Adults (25 papers), Health Systems, Economic Evaluations, Quality of Life (18 papers) and Nutrition and Health in Aging (14 papers). Niklas Ekerstad is often cited by papers focused on Frailty in Older Adults (25 papers), Health Systems, Economic Evaluations, Quality of Life (18 papers) and Nutrition and Health in Aging (14 papers). Niklas Ekerstad collaborates with scholars based in Sweden, United States and Ireland. Niklas Ekerstad's co-authors include Per Carlsson, Joakim Alfredsson, Rurik Löfmark, Magnus Janzon, Eva Swahn, Marcus Lindenberger, Björn W. Karlson, David Andersson, Maria Bäck and Birgitta Öberg and has published in prestigious journals such as Circulation, SHILAP Revista de lepidopterología and Journal of the American Medical Directors Association.

In The Last Decade

Niklas Ekerstad

33 papers receiving 727 citations

Peers

Niklas Ekerstad

CCM

PHYSI

GHP

Richard Biram United Kingdom

Donatella Del Sindaco Italy

Stephanie Sibley Canada

Ann-Katrin Habbig Belgium

Sunita R. Jha Australia

Lucía Cano Spain

Katleen Fagard Belgium

Nasiya Ahmed United States

Emily Hladkowicz Canada

Krystyna Łoboz−Grudzień Poland

Richard Biram United Kingdom

Niklas Ekerstad

373 ×0.8

158 ×0.5

122 ×0.4

CCM

169 ×0.8

PHYSI

109 ×0.9

GHP

Citations per year, relative to Niklas Ekerstad Niklas Ekerstad (= 1×) peers Richard Biram

Countries citing papers authored by Niklas Ekerstad

Since Specialization

Citations

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

Fields of papers citing papers by Niklas Ekerstad

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Niklas Ekerstad

This figure shows the co-authorship network connecting the top 25 collaborators of Niklas Ekerstad. A scholar is included among the top collaborators of Niklas Ekerstad 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 Niklas Ekerstad. Niklas Ekerstad 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

Ekerstad, Niklas, et al.. (2025). Experiences of participating in a preoperative comprehensive geriatric assessment and care intervention among frail older adults before colorectal cancer resection surgery. BMC Geriatrics. 25(1). 310–310. 1 indexed citations

Ekerstad, Niklas, et al.. (2025). Frailty Is an Independent Marker of Post‐Operative Mortality Following Colorectal Cancer Resection Surgery in Older Adults. Journal of Surgical Oncology. 132(1). 198–204. 1 indexed citations

Karlson, Björn W., et al.. (2024). Clinical Frailty Scale score is a predictor of short-, mid- and long-term mortality in critically ill older adults (≥ 70 years) admitted to the emergency department: an observational study. BMC Geriatrics. 24(1). 852–852. 1 indexed citations

Ekerstad, Niklas, et al.. (2024). Mortality and morbidity after colorectal cancer resection surgery in elderly patients: a retrospective population-based study in Sweden. World Journal of Surgical Oncology. 22(1). 23–23. 8 indexed citations

Ekerstad, Niklas, et al.. (2024). One-year mortality rates after standardized management for emergency laparotomy: results from the Swedish SMASH study. BJS Open. 8(1).

Olsson, Henrik, Joakim Alfredsson, David Andersson, et al.. (2023). Cross-cultural adaption and inter-rater reliability of the Swedish version of the updated clinical frailty scale 2.0. BMC Geriatrics. 23(1). 803–803. 3 indexed citations

Olsson, Henrik, Björn W. Karlson, Johan Herlitz, et al.. (2022). Predictors of short- and long-term mortality in critically ill, older adults admitted to the emergency department: an observational study. BMC Emergency Medicine. 22(1). 15–15. 7 indexed citations

Ekerstad, Niklas, et al.. (2022). Effect of comprehensive geriatric assessment for frail elderly patients operated for colorectal cancer—the colorectal cancer frailty study: study protocol for a randomized, controlled, multicentre trial. Trials. 23(1). 948–948. 5 indexed citations

Öberg, Birgitta, et al.. (2020). A balance between meaningfulness and risk of harm – frail elderly patients’ perceptions of physical activity and exercise – an interview study. BMC Geriatrics. 20(1). 490–490. 12 indexed citations

10.

Ekerstad, Niklas, et al.. (2019). <p>Preserved physical fitness is associated with lower 1-year mortality in frail elderly patients with a severe comorbidity burden</p>. Clinical Interventions in Aging. Volume 14. 577–586. 16 indexed citations

11.

Ekerstad, Niklas, et al.. (2018). Are frail elderly patients treated in a CGA unit more satisfied with their hospital care than those treated in conventional acute medical care?. Patient Preference and Adherence. Volume 12. 233–240. 7 indexed citations

12.

Ekerstad, Niklas, Björn W. Karlson, David Andersson, et al.. (2018). Short-term Resource Utilization and Cost-Effectiveness of Comprehensive Geriatric Assessment in Acute Hospital Care for Severely Frail Elderly Patients. Journal of the American Medical Directors Association. 19(10). 871–878.e2. 17 indexed citations

13.

Ekerstad, Niklas, et al.. (2018). Hospitalized frail elderly patients – atrial fibrillation, anticoagulation and 12 months’ outcomes. Clinical Interventions in Aging. Volume 13. 749–756. 29 indexed citations

14.

Bäck, Maria, et al.. (2017). Effects of comprehensive geriatric assessment on physical fitness in an acute medical setting for frail elderly patients. Clinical Interventions in Aging. Volume 12. 1929–1939. 29 indexed citations

15.

Andersson, Christer, Niklas Ekerstad, Jan Halldin, et al.. (2017). Ska värdebaserad vård införas av konsulter utan vetenskaplig evidens. Läkartidningen. 114. 1 indexed citations

16.

Ekerstad, Niklas, Synneve Dahlin‐Ivanoff, Sten Landahl, et al.. (2017). Acute care of severely frail elderly patients in a CGA-unit is associated with less functional decline than conventional acute care. Clinical Interventions in Aging. Volume 12. 1239–1249. 24 indexed citations

17.

Ekerstad, Niklas, et al.. (2017). Early rehospitalizations of frail elderly patients – the role of medications: a clinical, prospective, observational trial. Drug Healthcare and Patient Safety. Volume 9. 77–88. 16 indexed citations

18.

Ekerstad, Niklas, Björn W. Karlson, Synneve Dahlin‐Ivanoff, et al.. (2016). Is the acute care of frail elderly patients in a comprehensive geriatric assessment unit superior to conventional acute medical care?. Clinical Interventions in Aging. Volume 12. 1–9. 51 indexed citations

19.

Ekerstad, Niklas, Eva Swahn, Magnus Janzon, et al.. (2011). Frailty Is Independently Associated With Short-Term Outcomes for Elderly Patients With Non–ST-Segment Elevation Myocardial Infarction. Circulation. 124(22). 2397–2404. 273 indexed citations

20.

Ekerstad, Niklas, et al.. (2009). Characteristics of multiple-diseased elderly in Swedish hospital care and clinical guidelines. SHILAP Revista de lepidopterología. 3(2). 71–95. 9 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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