Jochen Cals

6.4k citations

209 papers · 4.7k · h-index 32

Impact in

Applied Microbiology and Biotechnology top 0.1%
- Antibiotic Use and Resistance
Family Practice top 5%

Papers in

Applied Microbiology and Biotechnology 45
- Antibiotic Use and Resistance 45
General Health Professions 37
- Primary Care and Health Outcomes 21

Co-authors: Geert‐Jan Dinant (54 shared papers)Christopher Collett Butler (24 shared papers)Rogier Hopstaken (21 shared papers)Daniel Kotz (29 shared papers)Kerenza Hood (15 shared papers)Nick A Francis (22 shared papers)Eefje G. P. M. de Bont (29 shared papers)Theo JM Verheij (16 shared papers)
Journals: Journal of Clinical Epidemiology (16 papers)BMJ Open (12 papers)Family Practice (10 papers)The Annals of Family Medicine (10 papers)British Journal of General Practice (10 papers)
Partner nations: Netherlands United Kingdom Belgium

In The Last Decade

Jochen Cals

186 papers receiving 4.5k citations

Peers

Countries citing papers authored by Jochen Cals

Since Specialization

Citations

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

Fields of papers citing papers by Jochen Cals

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside Jochen Cals, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Jochen Cals Line = papers co-authored together Jochen Cals links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 209 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Effect of point of care testing for C reactive protein and training in communication skills on antibiotic use in lower respiratory tract infections: cluster randomised trial BMJ ·Jochen Cals, Christopher Collett Butler, Rogier Hopstaken, Kerenza Hood, Geert‐Jan Dinant	2009	379
2	Effects of internet-based training on antibiotic prescribing rates for acute respiratory-tract infections: a multinational, cluster, randomised, factorial, controlled trial The Lancet ·Paul S Little, Beth Stuart, Nick A Francis, Elaine J. Douglas, Sarah KG Tonkin-Crine, Sibyl Anthierens, Jochen Cals, Hasse Melbye	2013	354
3	Knowledge, attitude and practice of antibiotics: a questionnaire study among 2500 Chinese students BMC Medical Education ·Ying Huang, Jiarui Gu, Mingyu Zhang, Zheng Ren, Weidong Yang, Yang Chen, Yingmei Fu, Xiaobei Chen	2013	196
4	Current and future use of point-of-care tests in primary care: an international survey in Australia, Belgium, The Netherlands, the UK and the USA BMJ Open ·Jeremy Howick, Jochen Cals, Caroline H. D. Jones, Christopher P. Price, Annette Plüddemann, Carl J. Heneghan, Marjolein Y. Berger, Frank Buntinx	2014	194
5	C-Reactive Protein Testing to Guide Antibiotic Prescribing for COPD Exacerbations New England Journal of Medicine ·Christopher Collett Butler, David Gillespie, Patrick T. White, Janine Bates, Rachel Lowe, Emma Thomas‐Jones, Mandy Wootton, Kerenza Hood	2019	189
6	Point-of-Care C-Reactive Protein Testing and Antibiotic Prescribing for Respiratory Tract Infections: A Randomized Controlled Trial The Annals of Family Medicine ·Jochen Cals, Marjolein J C Schot, Geert‐Jan Dinant, Rogier Hopstaken +1 other	2010	157
7	Point-of-care C-reactive protein testing to reduce inappropriate use of antibiotics for non-severe acute respiratory infections in Vietnamese primary health care: a randomised controlled trial The Lancet Global Health ·Nga Thi Thuy Do, Ngan Ta Thi Dieu, Ninh Hai Thi Tran, Than Manh Hung, Long Bao Hoang, H.Rogier van Doorn, Dung Tien Viet Vu, Jochen Cals	2016	132
8	Public beliefs on antibiotics and respiratory tract infections: an internet-based questionnaire study British Journal of General Practice ·Jochen Cals, Dennis Boumans, Robert Lardinois, Ralph Gonzales, Rogier Hopstaken, Christopher Collett Butler, Geert‐Jan Dinant	2007	121
9	Discrepancies between qualitative and quantitative evaluation of randomised controlled trial results: achieving clarity through mixed methods triangulation Implementation Science ·Sarah KG Tonkin-Crine, Sibyl Anthierens, Kerenza Hood, Lucy Yardley, Jochen Cals, Nick A Francis, Samuel Coenen, Alike W. van der Velden	2015	106
10	Risk of new clinical fractures within 2 years following a fracture Osteoporosis International ·Sven H. van Helden, Jochen Cals, F. Kessels, Peter R. Brink, Geert‐Jan Dinant, Piet Geusens	2005	102
11	Enhanced Communication Skills and C-reactive Protein Point-of-Care Testing for Respiratory Tract Infection: 3.5-year Follow-up of a Cluster Randomized Trial The Annals of Family Medicine ·Jochen Cals, Laura Bock, Pieter-Jan Beckers, Nick A Francis, Rogier Hopstaken, Kerenza Hood, Eefje G. P. M. de Bont, Christopher Collett Butler	2013	97
12	Clinicians’ Views and Experiences of Interventions to Enhance the Quality of Antibiotic Prescribing for Acute Respiratory Tract Infections Journal of General Internal Medicine ·Sibyl Anthierens, Sarah KG Tonkin-Crine, Jochen Cals, Samuel Coenen, Lucy Yardley, Lucy Brookes‐Howell, Patricia Fernandez-Vandellos, Jarosław Krawczyk	2014	86
13	Care Seeking Behaviour for Children with Suspected Pneumonia in Countries in Sub-Saharan Africa with High Pneumonia Mortality PLoS ONE ·Aaltje Camielle Noordam, Liliana Carvajal-Vélez, Alyssa Sharkey, Jochen Cals +1 other	2015	82
14	C-reactive protein point-of-care testing for lower respiratory tract infections: a qualitative evaluation of experiences by GPs Family Practice ·Jochen Cals, F. H F Chappin, Rogier Hopstaken, M. E van Leeuwen, Kerenza Hood, Christopher Collett Butler, Geert‐Jan Dinant	2009	78
15	C-reactive protein point of care testing and physician communication skills training for lower respiratory tract infections in general practice: economic evaluation of a cluster randomized trial Journal of Evaluation in Clinical Practice ·Jochen Cals, André J.H.A. Ament, Kerenza Hood, Christopher Collett Butler, Rogier Hopstaken, Geert F Wassink, Geert‐Jan Dinant	2010	77
16	Patient information leaflets to reduce antibiotic use and reconsultation rates in general practice: a systematic review BMJ Open ·Eefje G. P. M. de Bont, Marleen Alink, Famke C J Falkenberg, Geert‐Jan Dinant, Jochen Cals	2015	74
17	General practitioners’ views on the acceptability and applicability of a web-based intervention to reduce antibiotic prescribing for acute cough in multiple European countries: a qualitative study prior to a randomised trial BMC Family Practice ·Sibyl Anthierens, Sarah KG Tonkin-Crine, Elaine J. Douglas, Patricia Fernandez-Vandellos, Jarosław Krawczyk, Carl Llor, Jochen Cals, Nick A Francis	2012	64
18	The International Primary Care Respiratory Group (IPCRG) Research Needs Statement 2010 Primary Care Respiratory Journal ·Hilary Pinnock, Mike D. Thomas, Ioanna Tsiligianni, Karin Lisspers, Anders Østrem, Björn Ställberg, Osman Mohammad Yusuf, Dermot P. Ryan	2010	63
19	Antibiotic Prescribing for Acute Respiratory Tract Infections 12 Months After Communication and CRP Training: A Randomized Trial The Annals of Family Medicine ·Paul S Little, Beth Stuart, Nick A Francis, Elaine J. Douglas, Sarah KG Tonkin-Crine, Sibyl Anthierens, Jochen Cals, Hasse Melbye	2019	57
20	Parents’ knowledge, attitudes, and practice in childhood fever: an internet-based survey British Journal of General Practice ·Eefje G. P. M. de Bont, Nick A Francis, Geert‐Jan Dinant, Jochen Cals	2013	56

About Jochen Cals

Jochen Cals is a scholar working on Applied Microbiology and Biotechnology, General Health Professions, History and Philosophy of Science, Emergency Medicine and Epidemiology, having authored 209 papers that have together received 4.7k indexed citations. Recurring topics across this work include Antibiotic Use and Resistance (45 papers), Academic Writing and Publishing (24 papers), Primary Care and Health Outcomes (21 papers), Emergency and Acute Care Studies (16 papers), Clinical Laboratory Practices and Quality Control (15 papers), Pneumonia and Respiratory Infections (11 papers), Sepsis Diagnosis and Treatment (9 papers) and Healthcare Systems and Technology (9 papers). The work is most often cited by research in Applied Microbiology and Biotechnology (1.9k citations), Family Practice (63 citations), Critical Care and Intensive Care Medicine (121 citations), General Health Professions (561 citations) and Emergency Medical Services (150 citations). Jochen Cals has collaborated with scholars based in Netherlands, United Kingdom and Belgium. Frequent co-authors include Geert‐Jan Dinant, Christopher Collett Butler, Rogier Hopstaken, Daniel Kotz, Kerenza Hood, Nick A Francis, Eefje G. P. M. de Bont, Theo JM Verheij, Carl Llor and Herman Goossens. Their work appears in journals such as Journal of Clinical Epidemiology, BMJ Open, Family Practice, The Annals of Family Medicine and British Journal of General Practice.

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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