John Ludbrook

10.0k total citations · 2 hit papers
186 papers, 7.7k citations indexed

About

John Ludbrook is a scholar working on Cardiology and Cardiovascular Medicine, Surgery and Statistics and Probability. According to data from OpenAlex, John Ludbrook has authored 186 papers receiving a total of 7.7k indexed citations (citations by other indexed papers that have themselves been cited), including 68 papers in Cardiology and Cardiovascular Medicine, 34 papers in Surgery and 26 papers in Statistics and Probability. Recurrent topics in John Ludbrook's work include Heart Rate Variability and Autonomic Control (58 papers), Neuroscience of respiration and sleep (24 papers) and Statistical Methods in Clinical Trials (19 papers). John Ludbrook is often cited by papers focused on Heart Rate Variability and Autonomic Control (58 papers), Neuroscience of respiration and sleep (24 papers) and Statistical Methods in Clinical Trials (19 papers). John Ludbrook collaborates with scholars based in Australia, Italy and New Zealand. John Ludbrook's co-authors include Hugh Dudley, James C. Schadt, Roger G. Evans, Giuseppe Mancia, Sabatino Ventura, Alberto Zanchetti, Will Spooren, Alberto Ferrari, William F. Graham and Simon J. Potocnik and has published in prestigious journals such as The Lancet, Circulation and The Journal of Immunology.

In The Last Decade

John Ludbrook

179 papers receiving 7.3k citations

Hit Papers

PRACTICAL STATISTICS FOR MEDICAL RESEARCH 1991 2026 2002 2014 1991 1998 250 500 750
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.

  1. PRACTICAL STATISTICS FOR MEDICAL RESEARCH
    1991 993 citations John Ludbrook Australian and New Zealand Journal of Surgery profile →
  2. MULTIPLE COMPARISON PROCEDURES UPDATED
    1998 513 citations John Ludbrook Clinical and Experimental Pharmacology and Physiology profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John Ludbrook Australia 40 2.2k 1.5k 1.0k 763 586 186 7.7k
Gary K. Grunwald United States 45 2.0k 0.9× 1.3k 0.8× 1.2k 1.2× 186 0.2× 323 0.6× 167 6.8k
D G Altman United Kingdom 19 730 0.3× 1.3k 0.9× 788 0.8× 140 0.2× 585 1.0× 25 7.8k
Caroline J Doré United Kingdom 64 2.2k 1.0× 3.4k 2.2× 1.8k 1.7× 262 0.3× 710 1.2× 292 17.7k
Per Winkel Denmark 37 942 0.4× 1.2k 0.8× 825 0.8× 163 0.2× 481 0.8× 174 6.6k
Alex F. Roche United States 52 1.0k 0.5× 1.1k 0.7× 4.5k 4.4× 428 0.6× 975 1.7× 184 17.3k
James S. Hodges United States 54 1.2k 0.5× 1.1k 0.7× 875 0.9× 278 0.4× 497 0.8× 261 9.3k
Ronald A. Thisted United States 57 1.6k 0.7× 2.0k 1.3× 1.0k 1.0× 90 0.1× 490 0.8× 165 14.6k
Moonseong Heo United States 65 3.9k 1.8× 1.2k 0.8× 5.1k 5.1× 716 0.9× 906 1.5× 277 20.4k
Anders Ahlbom Sweden 69 1.4k 0.7× 1.4k 1.0× 2.2k 2.2× 385 0.5× 1.3k 2.3× 265 20.4k
Gerard E. Dallal United States 67 775 0.4× 1.9k 1.3× 4.9k 4.8× 433 0.6× 1.8k 3.0× 196 17.0k

Countries citing papers authored by John Ludbrook

Since Specialization
Citations

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

Fields of papers citing papers by John Ludbrook

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John Ludbrook

This figure shows the co-authorship network connecting the top 25 collaborators of John Ludbrook. A scholar is included among the top collaborators of John Ludbrook 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 John Ludbrook. John Ludbrook 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.
Koeners, Maarten P., Connie P. C. Ow, D. M. Russell, et al.. (2013). Telemetry-based oxygen sensor for continuous monitoring of kidney oxygenation in conscious rats. American Journal of Physiology-Renal Physiology. 304(12). F1471–F1480. 19 indexed citations
2.
Ludbrook, John. (2011). Is there still a place for Pearson's chi‐squared test and Fisher's exact test in surgical research?. ANZ Journal of Surgery. 81(12). 923–926. 6 indexed citations
3.
Ludbrook, John. (2007). HOW TO READ A PAPER: THE BASICS OF EVIDENCE‐BASED MEDICINE. ANZ Journal of Surgery. 77(7). 595–596. 79 indexed citations
4.
Ludbrook, John. (2007). WRITING INTELLIGIBLE ENGLISH PROSE FOR BIOMEDICAL JOURNALS. Clinical and Experimental Pharmacology and Physiology. 34(5-6). 508–514. 11 indexed citations
5.
Ludbrook, John. (2007). Statistics in Biomedical Laboratory and Clinical Science: Applications, Issues and Pitfalls. Medical Principles and Practice. 17(1). 1–13. 27 indexed citations
6.
Ludbrook, John, et al.. (2000). Different Outcomes of the Wilcoxon—Mann—Whitney Test from Different Statistics Packages. The American Statistician. 54(1). 72–77. 147 indexed citations
7.
Ludbrook, John. (1996). STATISTICS FOR PUBLICATION. Australian and New Zealand Journal of Surgery. 66(6). 341–343. 2 indexed citations
8.
Ludbrook, John. (1995). ISSUES IN BIOMEDICAL STATISTICS: COMPARING MEANS UNDER NORMAL DISTRIBUTION THEORY. Australian and New Zealand Journal of Surgery. 65(4). 267–272. 11 indexed citations
9.
Evans, Roger G., John Ludbrook, & Sabatino Ventura. (1994). Role of vagal afferents in the haemodynamic response to acute central hypovolaemia in unanaesthetized rabbits. Journal of the Autonomic Nervous System. 46(3). 251–260. 32 indexed citations
10.
Evans, Roger G., Ian Hayes, & John Ludbrook. (1992). DOES THE HAEMODYNAMIC RESPONSE TO ACUTE CENTRAL HYPOVOLAEMIA DEPEND ON THE RATE OF FALL OF CARDIAC OUTPUT?. Clinical and Experimental Pharmacology and Physiology. 19(9). 657–661. 12 indexed citations
11.
Ludbrook, John, et al.. (1983). MECHANICAL EFFECTS OF RIGHT ATRIAL PRESSURE ON HEART RATE IN THE CONSCIOUS RABBIT. Immunology and Cell Biology. 61(6). 675–685. 4 indexed citations
12.
Ludbrook, John, et al.. (1977). Bone marrow as an index of condition in African ungulates. South African Journal of Wildlife Research. 7(2). 53 indexed citations
13.
Ashman, Leonie K., John Ludbrook, & Villis R. Marshall. (1975). Probabilistic application of plasma carcinoembryonic antigen assay in cancer patients.. BMJ. 2(5973). 721–724. 11 indexed citations
14.
Marshall, Villis R. & John Ludbrook. (1975). A METHOD FOR ASSESSING PHAGOCYTE CLEARANCE RATES IN MAN. Immunology and Cell Biology. 53(4). 333–336. 2 indexed citations
15.
Ludbrook, John. (1966). Aspects of venous function in the lower limbs. 34 indexed citations
16.
Ludbrook, John. (1963). VALVULAR DEFECT IN PRIMARY VARICOSE VEINS CAUSE OR EFFECT?. The Lancet. 282(7321). 1289–1292. 48 indexed citations
17.
Ludbrook, John, et al.. (1962). CYTOLOGICAL DIAGNOSIS OF PROSTATIC CANCER. British Journal of Urology. 34(3). 326–330. 5 indexed citations
18.
Kenyon, J. R., et al.. (1959). EXPERIMENTAL DEEP HYPOTHERMIA. The Lancet. 274(7090). 41–45. 17 indexed citations
19.
Kenyon, J. R. & John Ludbrook. (1957). HYPOTHERMIA BELOW 10°G IN DOGS WITH CARDIAC RECOVERY ON REWARMING. The Lancet. 270(6987). 171–173. 7 indexed citations
20.
Wynn, V. & John Ludbrook. (1957). A METHOD OF MEASURING THE pH OF BODY-FLUIDS. The Lancet. 269(6978). 1068–1071. 15 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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