Helen Johansen

5.0k total citations · 1 hit paper
82 papers, 3.4k citations indexed

About

Helen Johansen is a scholar working on Cardiology and Cardiovascular Medicine, General Health Professions and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Helen Johansen has authored 82 papers receiving a total of 3.4k indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Cardiology and Cardiovascular Medicine, 17 papers in General Health Professions and 17 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Helen Johansen's work include Blood Pressure and Hypertension Studies (16 papers), Chronic Disease Management Strategies (10 papers) and Nutritional Studies and Diet (9 papers). Helen Johansen is often cited by papers focused on Blood Pressure and Hypertension Studies (16 papers), Chronic Disease Management Strategies (10 papers) and Nutritional Studies and Diet (9 papers). Helen Johansen collaborates with scholars based in Canada, United States and United Kingdom. Helen Johansen's co-authors include Finlay A. McAlister, Norm R.C. Campbell, Jack V. Tu, Christie Sambell, Michel Joffres, Douglas G. Manuel, Cynthia Robitaille, Mark S. Tremblay, C. Ineke Neutel and Robin L. Walker and has published in prestigious journals such as New England Journal of Medicine, Circulation and Journal of the American College of Cardiology.

In The Last Decade

Helen Johansen

82 papers receiving 3.2k 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.

Hypertension prevalence, awareness, treatment and control in national surveys from England, the USA and Canada, and correlation with stroke and ischaemic heart disease mortality: a cross-sectional study

2013 350 citations Michel Joffres, Finlay A. McAlister et al. profile →

Peers

Countries citing papers authored by Helen Johansen

Since Specialization

Citations

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

Fields of papers citing papers by Helen Johansen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Helen Johansen

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

#	Work	Indexed citations
1	Prevalence, Awareness, Treatment, and Control of Hypertension Among Canadian Adults With Diabetes, 2007 to 2009 2012 ·Canadian Journal of Cardiology ·Marianne E. Gee, Ian Janssen, William Pickett, Finlay A. McAlister, Christina Bancej, Michel Joffres, Helen Johansen, Norman R.C. Campbell	24
2	Implementation of ICD-10 in Canada: how has it impacted coded hospital discharge data? 2012 ·BMC Health Services Research ·Robin L. Walker, Deirdre Hennessy, Helen Johansen, Christie Sambell, Lisa M. Lix, Hude Quan	41
3	Identification of factors driving differences in cost effectiveness of first-line pharmacological therapy for uncomplicated hypertension 2010 ·Canadian Journal of Cardiology ·Scott Klarenbach, Finlay A. McAlister, Helen Johansen, Karen Tu, Maureen Hazel, Robin L. Walker, Kelly B. Zarnke, Norman R.C. Campbell	8
4	In-hospital mortality in 13,263 survivors of out-of-hospital cardiac arrest in Canada 2010 ·American Heart Journal ·Calum J. Redpath, Christie Sambell, Ian G. Stiell, Helen Johansen, Kathryn Williams, (unknown), Martin Green, Michael H. Gollob, Robert Lemery, David H. Birnie	12
5	The Effect of Universal Influenza Immunization on Mortality and Health Care Use 2008 ·PLoS Medicine ·Jeffrey C. Kwong, Thérèse A. Stukel, (unknown), Allison McGeer, Ross Upshur, Helen Johansen, Christie Sambell, W. Thompson, Deva Thiruchelvam, Fawziah Marra, Lawrence W. Svenson, Douglas G. Manuel	111
6	The effect of universal influenza immunization on vaccination rates in Ontario. 2006 ·PubMed ·Jeff Kwong, Christie Sambell, Helen Johansen, Thérèse A. Stukel, Douglas G. Manuel	25
7	Flu shots--national and provincial/territorial trends. 2006 ·PubMed ·Helen Johansen, Christie Sambell, (unknown)	15
8	Identifying priorities in methodological research using ICD-9-CM and ICD-10 administrative data: report from an international consortium 2006 ·BMC Health Services Research ·Carolyn De Coster, Hude Quan, Alan Finlayson, Min Gao, Patricia Halfon, Karin H. Humphries, Helen Johansen, Lisa M. Lix, (unknown), Jin Ma, Patrick S. Romano, Leslíe L. Roos, Vijaya Sundararajan, Jack V. Tu, Greg Webster, William A. Ghali	126
9	In a retrospective study of chronic obstructive pulmonary disease inpatients, respiratory comorbidities were significantly associated with prognosis 2005 ·Journal of Clinical Epidemiology ·Yue Chen, Paula Stewart, Robert Dales, Helen Johansen, Shirley Bryan, Gregory Taylor	17
10	Shorter hospital stays for breast cancer. 2004 ·PubMed ·C. Ineke Neutel, Ru‐Nie Gao, Leslie A. Gaudette, Helen Johansen	14
11	Cardiac procedures after an acute myocardial infarction across nine Canadian provinces. 2004 ·PubMed ·Louise Pilote, (unknown), Igor Karp, David A. Alter, Peter C. Austin, Jafna L. Cox, Helen Johansen, William A. Ghali, Jack V. Tu	23
12	Hospital readmissions for asthma in children and young adults in Canada 2003 ·Pediatric Pulmonology ·Yue Chen, Robert Dales, Paula Stewart, Helen Johansen, (unknown), Gregory Taylor	32
13	Variations in angioplasty and bypass surgery. 1998 ·PubMed ·Helen Johansen, C.G.R. Nair, Graham W. Taylor	2
14	Can Nitrogen-13 Ammonia Kinetic Modeling Define Myocardial Viability Independent of Fluorine-18 Fluorodeoxyglucose? 1997 ·Journal of the American College of Cardiology ·Rob Beanlands, Robert A. deKemp, (unknown), Claude Nahmias, E.S. Garnett, Geoff Coates, Helen Johansen, Ernest L. Fallen	24
15	Differentiation of myocardial ischemia and necrosis by technetium 99m glucaric acid kinetics 1997 ·Journal of Nuclear Cardiology ·Rob Beanlands, Terrence D. Ruddy, (unknown), Helen Johansen	10
16	Person-based information from Canadian hospital discharge data. 1996 ·PubMed ·Helen Johansen, (unknown), (unknown), C.G.R. Nair	1
17	Intracoronary stenting in the setting of myocardial infarction 1996 ·Journal of the American College of Cardiology ·Michel R. Le May, Marino Labinaz, Rob Beanlands, Louise Laramée, Edward R. O’Brien, Jean-François Marquis, William L. Williams, (unknown), Richard F. Davies, (unknown), Helen Johansen, Lyall Higginson	2
18	Who goes to the hospital? An investigation of high users of hospital days. 1994 ·PubMed ·Helen Johansen, C.G.R. Nair, J. Brent Bond	19
19	Major Risk Factors for Cardiovascular Disease Mortality in Adults: Results from the Nutrition Canada Survey Cohort 1988 ·International Journal of Epidemiology ·R Semenciw, Howard Morrison, Yong Mao, Helen Johansen, J.W.L. Davies, Donald T. Wigle	53
20	Epidemiological Studies in Nutrition: Utility and Limitations 1988 ·Journal of Nutrition ·Helen Johansen, C. Ineke Neutel	6

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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