Harald A. Nygaard

3.5k total citations
75 papers, 2.5k citations indexed

About

Harald A. Nygaard is a scholar working on Psychiatry and Mental health, General Health Professions and Geriatrics and Gerontology. According to data from OpenAlex, Harald A. Nygaard has authored 75 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Psychiatry and Mental health, 22 papers in General Health Professions and 14 papers in Geriatrics and Gerontology. Recurrent topics in Harald A. Nygaard's work include Dementia and Cognitive Impairment Research (31 papers), Geriatric Care and Nursing Homes (12 papers) and Schizophrenia research and treatment (10 papers). Harald A. Nygaard is often cited by papers focused on Dementia and Cognitive Impairment Research (31 papers), Geriatric Care and Nursing Homes (12 papers) and Schizophrenia research and treatment (10 papers). Harald A. Nygaard collaborates with scholars based in Norway, United Kingdom and Qatar. Harald A. Nygaard's co-authors include Sabine Ruths, Knut Engedal, A. David Smith, Eha Nurk, Helga Refsum, Grethe S. Tell, Jørund Straand, Christian A. Drevon, Mala Naik and Dan J. Stein and has published in prestigious journals such as American Journal of Clinical Nutrition, Annals of Neurology and Journal of Nutrition.

In The Last Decade

Harald A. Nygaard

74 papers receiving 2.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Harald A. Nygaard Norway 32 896 721 358 348 340 75 2.5k
Sten Landahl Sweden 33 1.1k 1.2× 403 0.6× 394 1.1× 1.0k 3.0× 491 1.4× 75 4.2k
Antonio Sgadari Italy 27 581 0.6× 954 1.3× 242 0.7× 369 1.1× 666 2.0× 55 2.4k
Emanuele Scafato Italy 35 1.3k 1.4× 443 0.6× 577 1.6× 908 2.6× 461 1.4× 101 4.1k
Nicola Coley France 29 1.3k 1.4× 345 0.5× 396 1.1× 800 2.3× 281 0.8× 85 2.7k
James O. Taylor United States 19 784 0.9× 726 1.0× 881 2.5× 797 2.3× 345 1.0× 23 6.0k
René Verreault Canada 34 1.1k 1.3× 571 0.8× 928 2.6× 1.1k 3.2× 350 1.0× 86 5.0k
Patricia Schofield United Kingdom 26 406 0.5× 398 0.6× 384 1.1× 873 2.5× 706 2.1× 80 2.7k
Hedda Agüero‐Torres Sweden 18 1.0k 1.2× 527 0.7× 204 0.6× 418 1.2× 313 0.9× 24 2.0k
Mathew Niti Singapore 29 506 0.6× 486 0.7× 304 0.8× 897 2.6× 644 1.9× 38 2.6k
Jochanan Stessman Israel 31 387 0.4× 476 0.7× 303 0.8× 730 2.1× 357 1.1× 104 3.0k

Countries citing papers authored by Harald A. Nygaard

Since Specialization
Citations

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

Fields of papers citing papers by Harald A. Nygaard

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Harald A. Nygaard. 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 Harald A. Nygaard. The network helps show where Harald A. Nygaard may publish in the future.

Co-authorship network of co-authors of Harald A. Nygaard

This figure shows the co-authorship network connecting the top 25 collaborators of Harald A. Nygaard. A scholar is included among the top collaborators of Harald A. Nygaard 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 Harald A. Nygaard. Harald A. Nygaard 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.
Son, Sung Hyun, Mark Speechley, Guangyong Zou, et al.. (2024). Potentially Modifiable Dementia Risk Factors in Canada: An Analysis of Canadian Longitudinal Study on Aging with a Multi-Country Comparison. The Journal of Prevention of Alzheimer s Disease. 11(5). 1490–1499. 4 indexed citations
2.
Vogiatzoglou, Anna, A. David Smith, Eha Nurk, et al.. (2012). Cognitive Function in an Elderly Population. Psychosomatic Medicine. 75(1). 20–29. 56 indexed citations
3.
Sævareid, Hans Inge, Elin Thygesen, Torill Christine Lindstrøm, & Harald A. Nygaard. (2010). Association between self‐reported care needs and the allocation of care in Norwegian home nursing care recipients. International Journal of Older People Nursing. 7(1). 20–28. 15 indexed citations
4.
Drageset, Jorunn, Gerd Karin Natvig, Geir Egil Eide, et al.. (2008). Differences in health‐related quality of life between older nursing home residents without cognitive impairment and the general population of Norway. Journal of Clinical Nursing. 17(9). 1227–1236. 47 indexed citations
5.
Nurk, Eha, Helga Refsum, Christian A. Drevon, et al.. (2008). Intake of Flavonoid-Rich Wine, Tea, and Chocolate by Elderly Men and Women Is Associated with Better Cognitive Test Performance. Journal of Nutrition. 139(1). 120–127. 186 indexed citations
6.
Nygaard, Harald A., et al.. (2007). Quality and appropriateness of referrals for dementia patients. Quality in primary care. 15(1). 9 indexed citations
7.
Sævareid, Hans Inge, Elin Thygesen, Harald A. Nygaard, & Torill Christine Lindstrøm. (2007). Does sense of coherence affect the relationship between self-rated health and health status in a sample of community-dwelling frail elderly people?. Aging & Mental Health. 11(6). 658–667. 33 indexed citations
8.
Moe‐Nilssen, Rolf, et al.. (2006). Modulation of Gait During Visual Adaptation to Dark. Journal of Motor Behavior. 38(2). 118–125. 25 indexed citations
9.
Skjerve, Arvid, Inger Hilde Nordhus, Knut Engedal, et al.. (2006). Seven minute screen performance in a normal elderly sample. International Journal of Geriatric Psychiatry. 22(8). 764–769. 12 indexed citations
10.
Nygaard, Harald A., et al.. (2005). Kroniske smerter hos sykehjemspasienter – selvrapportering og sykepleiers vurdering. Tidsskrift for Den Norske Laegeforening. 2 indexed citations
11.
Wyller, Torgeir Bruun & Harald A. Nygaard. (2005). Sykehjemsmedisinen frem i lyset. Tidsskrift for Den Norske Laegeforening. 1 indexed citations
12.
Lehmann, Sverre, Dan J. Stein, Harald A. Nygaard, & Amund Gulsvik. (2004). Factors determining performance of bronchodilator reversibility tests in middle-aged and elderly. Respiratory Medicine. 98(11). 1071–1079. 33 indexed citations
13.
Nygaard, Harald A.. (2002). [Nursing home as a medical institution--a fata morgana?].. PubMed. 122(8). 823–5. 18 indexed citations
14.
Nygaard, Harald A.. (2002). Sykehjemmet som medisinsk institusjon - et fatamorgana?. Tidsskrift for Den Norske Laegeforening. 6 indexed citations
15.
Nygaard, Harald A.. (2001). Varighet av legemiddelbruk i sykehjem. Tidsskrift for Den Norske Laegeforening. 1 indexed citations
16.
Ruths, Sabine, Jørund Straand, & Harald A. Nygaard. (2001). Psychotropic drug use in nursing homes - diagnostic indications and variations between institutions. European Journal of Clinical Pharmacology. 57(6-7). 523–528. 86 indexed citations
17.
Nygaard, Harald A., Mala Naik, & Sabine Ruths. (2000). Mental svikt hos sykehjemspasienter. Tidsskrift for Den Norske Laegeforening. 2 indexed citations
18.
Nygaard, Harald A., et al.. (1992). Zuclopenthixol, melperone and haloperidol/levomepromazine in the elderly. Meta-analysis of two double-blind trials at 15 nursing homes in Norway. Current Medical Research and Opinion. 12(10). 615–622. 5 indexed citations
19.
Nygaard, Harald A. & Knut Laake. (1990). Lower Mortality of Demented Nursing Home Residents: A Two-year Survival Study. Scandinavian Journal of Primary Health Care. 8(2). 123–126. 6 indexed citations
20.
Nygaard, Harald A.. (1988). Strain on Caregivers of Demented Elderly People Living at Home. Scandinavian Journal of Primary Health Care. 6(1). 33–37. 34 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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026