Claus Christiansen

68.8k total citations · 9 hit papers
681 papers, 45.7k citations indexed

About

Claus Christiansen is a scholar working on Orthopedics and Sports Medicine, Oncology and Endocrinology, Diabetes and Metabolism. According to data from OpenAlex, Claus Christiansen has authored 681 papers receiving a total of 45.7k indexed citations (citations by other indexed papers that have themselves been cited), including 260 papers in Orthopedics and Sports Medicine, 153 papers in Oncology and 142 papers in Endocrinology, Diabetes and Metabolism. Recurrent topics in Claus Christiansen's work include Bone health and osteoporosis research (253 papers), Bone health and treatments (127 papers) and Estrogen and related hormone effects (114 papers). Claus Christiansen is often cited by papers focused on Bone health and osteoporosis research (253 papers), Bone health and treatments (127 papers) and Estrogen and related hormone effects (114 papers). Claus Christiansen collaborates with scholars based in Denmark, United States and France. Claus Christiansen's co-authors include Christian Hassager, M.A. Karsdal, P. Rødbro, Peter Alexandersen, Pierre D. Delmas, B.J. Riis, László B. Tankó, Jens Haarbo, L. Joseph Melton and Nikolaï Khaltaev and has published in prestigious journals such as New England Journal of Medicine, The Lancet and JAMA.

In The Last Decade

Claus Christiansen

673 papers receiving 43.6k citations

Hit Papers

The diagnosis of osteoporosis 1980 2026 1995 2010 1994 2009 1997 2004 2016 500 1000 1.5k 2.0k 2.5k
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. The diagnosis of osteoporosis
    1994 2.9k citations Claus Christiansen et al. profile →
  2. Denosumab for Prevention of Fractures in Postmenopausal Women with Osteoporosis
    2009 2.4k citations Claus Christiansen et al. profile →
  3. Effects of Raloxifene on Bone Mineral Density, Serum Cholesterol Concentrations, and Uterine Endometrium in Postmenopausal Women
    1997 1.2k citations Claus Christiansen et al. profile →
  4. Effects of Oral Ibandronate Administered Daily or Intermittently on Fracture Risk in Postmenopausal Osteoporosis
    2004 877 citations Claus Christiansen et al. profile →
  5. Effect of Abaloparatide vs Placebo on New Vertebral Fractures in Postmenopausal Women With Osteoporosis
    2016 581 citations Claus Christiansen et al. profile →
  6. Preoperative Renal Risk Stratification
    1997 578 citations Claus Christiansen et al. profile →
  7. Prevention of early postmenopausal bone loss: controlled 2‐year study in 315 normal females
    1980 491 citations Claus Christiansen et al. profile →
  8. BONE MASS IN POSTMENOPAUSAL WOMEN AFTER WITHDRAWAL OF OESTROGEN/GESTAGEN REPLACEMENT THERAPY
    1981 443 citations Claus Christiansen et al. profile →
  9. Disease-modifying treatments for osteoarthritis (DMOADs) of the knee and hip: lessons learned from failures and opportunities for the future
    2016 274 citations M.A. Karsdal, Claus Christiansen et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Claus Christiansen Denmark 108 20.3k 12.8k 11.3k 7.7k 7.3k 681 45.7k
Pierre D. Delmas France 116 28.0k 1.4× 16.7k 1.3× 12.5k 1.1× 4.1k 0.5× 4.8k 0.7× 403 45.1k
B. Lawrence Riggs United States 121 29.3k 1.4× 15.0k 1.2× 18.7k 1.7× 7.7k 1.0× 8.9k 1.2× 390 55.4k
Sundeep Khosla United States 113 21.6k 1.1× 14.9k 1.2× 21.3k 1.9× 6.4k 0.8× 6.6k 0.9× 511 51.8k
John P. Bilezikian United States 112 17.0k 0.8× 15.4k 1.2× 10.7k 0.9× 5.6k 0.7× 5.1k 0.7× 623 43.4k
Robert R. Recker United States 92 21.9k 1.1× 12.9k 1.0× 14.5k 1.3× 2.9k 0.4× 5.7k 0.8× 465 39.5k
Clifford J. Rosen United States 101 16.5k 0.8× 9.6k 0.7× 16.0k 1.4× 6.6k 0.9× 4.5k 0.6× 575 43.6k
Richard Eastell United Kingdom 109 26.7k 1.3× 17.5k 1.4× 11.8k 1.0× 3.5k 0.5× 3.7k 0.5× 632 42.6k
L. Joseph Melton United States 84 21.4k 1.1× 8.2k 0.6× 8.2k 0.7× 4.2k 0.5× 4.0k 0.5× 170 37.7k
Dennis M. Black United States 97 30.0k 1.5× 15.3k 1.2× 9.7k 0.9× 4.6k 0.6× 4.3k 0.6× 326 43.6k
Steven R. Cummings United States 133 37.6k 1.9× 20.5k 1.6× 14.1k 1.3× 7.1k 0.9× 9.1k 1.3× 632 73.5k

Countries citing papers authored by Claus Christiansen

Since Specialization
Citations

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

Fields of papers citing papers by Claus Christiansen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Claus Christiansen

This figure shows the co-authorship network connecting the top 25 collaborators of Claus Christiansen. A scholar is included among the top collaborators of Claus Christiansen 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 Claus Christiansen. Claus Christiansen 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.
Leech, Ashley A., et al.. (2020). Healthcare practitioner experiences and willingness to prescribe pre-exposure prophylaxis in the US. PLoS ONE. 15(9). e0238375–e0238375. 8 indexed citations
2.
Bager, Cecilie L., Nicholas Willumsen, S.N. Kehlet, et al.. (2016). Remodeling of the Tumor Microenvironment Predicts Increased Risk of Cancer in Postmenopausal Women: The Prospective Epidemiologic Risk Factor (PERF I) Study. Cancer Epidemiology Biomarkers & Prevention. 25(9). 1348–1355. 12 indexed citations
3.
Feigh, Michael, Kim Henriksen, Kim Vietz Andreassen, et al.. (2011). A novel oral form of salmon calcitonin improves glucose homeostasis and reduces body weight in diet‐induced obese rats. Diabetes Obesity and Metabolism. 13(10). 911–920. 38 indexed citations
4.
Karsdal, M.A., Thasia Woodworth, Kim Henriksen, et al.. (2011). Biochemical markers of ongoing joint damage in rheumatoid arthritis - current and future applications, limitations and opportunities. Arthritis Research & Therapy. 13(2). 215–215. 90 indexed citations
5.
Bay‐Jensen, Anne‐Christine, et al.. (2009). Biochemical Markers of Joint Tissue Turnover. Assay and Drug Development Technologies. 8(1). 118–124. 19 indexed citations
6.
Romano, Patrick S., Hillary J. Mull, Peter E. Rivard, et al.. (2008). Validity of Selected AHRQ Patient Safety Indicators Based on VA National Surgical Quality Improvement Program Data. Health Services Research. 44(1). 182–204. 138 indexed citations
7.
Sloan, Kevin L., Maria E. Montez‐Rath, Avron Spiro, et al.. (2006). Development and Validation of a Psychiatric Case-Mix System. Medical Care. 44(6). 568–580. 27 indexed citations
8.
Qvist, Per, et al.. (2005). Lack of hepatic metabolism of C-telopeptides of type I collagen. Clinica Chimica Acta. 366(1-2). 344–347. 2 indexed citations
9.
Karsdal, M.A., Kim Henriksen, Mette G Sørensen, et al.. (2005). Acidification of the Osteoclastic Resorption Compartment Provides Insight into the Coupling of Bone Formation to Bone Resorption. American Journal Of Pathology. 166(2). 467–476. 130 indexed citations
10.
11.
Gelfand, Alan E., et al.. (2000). Conditional categorical response models with application to treatment of acute myocardial infarction. Journal of the Royal Statistical Society Series C (Applied Statistics). 49(2). 171–186. 4 indexed citations
12.
Reginster, Jean‐Yves, et al.. (1998). Intermittent cyclical low dose tiludronate in treatment of postmenopausal osteoporosis. Report of two phase III European studies (2305 patients). Open Repository and Bibliography (University of Liège). 2 indexed citations
13.
Overgaard, Kirsten, Robert Lindsay, & Claus Christiansen. (1995). Patient responsiveness to calcitonin salmon nasal spray: a subanalysis of a 2-year study. Clinical Therapeutics. 17(4). 680–685. 19 indexed citations
14.
Svendsen, Ole Lander, Christian Hassager, U. Marslew, & Claus Christiansen. (1992). Changes in calcanean bone mineral occurring spontaneously and during hormone replacement therapy in early post-menopausal women. Scandinavian Journal of Clinical and Laboratory Investigation. 52(8). 831–836. 10 indexed citations
15.
Christiansen, Claus, et al.. (1990). Osteoporosis after 60. BMJ. 301(6755). 817.4–817. 2 indexed citations
16.
Christiansen, Claus, B.J. Riis, & P. Rødbro. (1990). Screening procedure for women at risk of developing postmenopausal osteoporosis. Osteoporosis International. 1(1). 35–40. 95 indexed citations
17.
Hansen, M.A., B.J. Riis, Karsten Overgaard, Christian Hassager, & Claus Christiansen. (1990). Bone mass measured by photon absorptiometry: comparison of forearm, heel, and spine. Scandinavian Journal of Clinical and Laboratory Investigation. 50(5). 517–523. 16 indexed citations
18.
Staberg, B, Annemette Oxholm, P Klemp, & Claus Christiansen. (1987). Abnormal vitamin D metabolism in patients with psoriasis. Acta Dermato Venereologica. 67(1). 65–68. 35 indexed citations
19.
Christiansen, Claus, P. Rødbro, & O. Sjö. (1974). “Anticonvulsant Action” of Vitamin D in Epileptic Patients? A Controlled Pilot Study. BMJ. 2(5913). 258–259. 89 indexed citations
20.
Christiansen, Claus, P. Rødbro, & M. Lund. (1973). Effect of Vitamin D on Bone Mineral Mass in Normal Subjects and in Epileptic Patients on Anticonvulsants: A Controlled Therapeutic Trial. BMJ. 2(5860). 208–209. 35 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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