Christian Ohmann

Christian Ohmann

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Christian Ohmann

Publications by authors named "Christian Ohmann"

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Classification of processes involved in sharing individual participant data from clinical trials.

F1000Res 2018 1;7:138. Epub 2018 Feb 1.

European Clinical Research Infrastructure Network (ECRIN), Paris, 75013, France.

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http://dx.doi.org/10.12688/f1000research.13789.2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5861517PMC
February 2018

Excess Mortality After Pelvic Fractures Among Older People.

J Bone Miner Res 2017 Sep 8;32(9):1789-1801. Epub 2017 May 8.

Institute for Health Services Research and Health Economics, Centre for Health and Society, Faculty of Medicine, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany.

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http://dx.doi.org/10.1002/jbmr.3116DOI Listing
September 2017

Orchestrating differential data access for translational research: a pilot implementation.

BMC Med Inform Decis Mak 2017 03 23;17(1):30. Epub 2017 Mar 23.

European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Trust Genome Campus, Hinxton, CB10 1SD, UK.

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http://dx.doi.org/10.1186/s12911-017-0424-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5363029PMC
March 2017

A metadata schema for data objects in clinical research.

Trials 2016 11 24;17(1):557. Epub 2016 Nov 24.

European Clinical Research Infrastructure Network (ECRIN), Kaiserswerther Strasse 70, 40477, Düsseldorf, Germany.

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http://dx.doi.org/10.1186/s13063-016-1686-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5122021PMC
November 2016

Clinical Trial Information Mediator.

J Biomed Inform 2016 10 8;63:157-168. Epub 2016 Aug 8.

ECRIN, Kaiserswerther Str. 70, 40477 Duesseldorf, Germany.

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http://dx.doi.org/10.1016/j.jbi.2016.08.012DOI Listing
October 2016

Bayesian evidence synthesis for exploring generalizability of treatment effects: a case study of combining randomized and non-randomized results in diabetes.

Stat Med 2016 May 22;35(10):1654-75. Epub 2015 Nov 22.

Department of Public Health, University of Duesseldorf, Duesseldorf, Germany.

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http://dx.doi.org/10.1002/sim.6809DOI Listing
May 2016

A Prospective Pilot Trial for Pallidal Deep Brain Stimulation in Huntington's Disease.

Front Neurol 2015 18;6:177. Epub 2015 Aug 18.

Department of Stereotactic and Functional Neurosurgery, Medical Faculty, Heinrich-Heine-University Düsseldorf , Düsseldorf , Germany.

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http://dx.doi.org/10.3389/fneur.2015.00177DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4539552PMC
September 2015

Value of 3D TEE for LAA Morphology.

JACC Cardiovasc Imaging 2015 Sep;8(9):1107-1110

Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University of Düsseldorf, Düsseldorf, Germany. Electronic address:

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http://dx.doi.org/10.1016/j.jcmg.2014.07.030DOI Listing
September 2015

'Cloud computing' and clinical trials: report from an ECRIN workshop.

Trials 2015 Jul 29;16:318. Epub 2015 Jul 29.

European Clinical Research Infrastructures Network (ECRIN), BioPark, 5-7 rue Watt, 75013, Paris, France.

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http://dx.doi.org/10.1186/s13063-015-0835-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4518685PMC
July 2015

The effect of a Diabetes-Specific Cognitive Behavioral Treatment Program (DIAMOS) for patients with diabetes and subclinical depression: results of a randomized controlled trial.

Diabetes Care 2015 Apr 20;38(4):551-60. Epub 2015 Jan 20.

Research Institute Diabetes Academy Mergentheim, Bad Mergentheim, Germany Diabetes Center Mergentheim, Bad Mergentheim, Germany Institute of Clinical Psychology and Psychotherapy, University of Bamberg, Bamberg, Germany.

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http://dx.doi.org/10.2337/dc14-1416DOI Listing
April 2015

Combining randomized and non-randomized evidence in clinical research: a review of methods and applications.

Res Synth Methods 2015 Mar 3;6(1):45-62. Epub 2014 Jun 3.

Coordination Center for Clinical Trials, University of Duesseldorf, Germany.

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http://dx.doi.org/10.1002/jrsm.1122DOI Listing
March 2015

Using electronic health records for clinical research: the case of the EHR4CR project.

J Biomed Inform 2015 Feb 18;53:162-73. Epub 2014 Oct 18.

Department of Public Health, Unit of Medical Informatics and Statistics, Ghent University, Ghent, Belgium; The European Institute for Health Records (EuroRec), Sint-Martens-Latem, Belgium. Electronic address:

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http://www.ehr4cr.eu/files/publications/Corevits_et_al_Journ
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http://linkinghub.elsevier.com/retrieve/pii/S153204641400226
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http://dx.doi.org/10.1016/j.jbi.2014.10.006DOI Listing
February 2015

A standardised graphic method for describing data privacy frameworks in primary care research using a flexible zone model.

Int J Med Inform 2014 Dec 3;83(12):941-57. Epub 2014 Sep 3.

NIHR Biomedical Research Centre at Guy's and St. Thomas' NHS Foundation Trust and King's College London, London, UK.

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http://dx.doi.org/10.1016/j.ijmedinf.2014.08.009DOI Listing
December 2014

TACE plus sorafenib for the treatment of hepatocellular carcinoma: results of the multicenter, phase II SOCRATES trial.

Cancer Chemother Pharmacol 2014 Nov 31;74(5):947-54. Epub 2014 Aug 31.

Department of Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany,

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http://dx.doi.org/10.1007/s00280-014-2568-8DOI Listing
November 2014

Comparison of electronic health record system functionalities to support the patient recruitment process in clinical trials.

Int J Med Inform 2014 Nov 25;83(11):860-8. Epub 2014 Aug 25.

Chair of Medical Informatics, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstraße 12, 91054 Erlangen, Germany.

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http://dx.doi.org/10.1016/j.ijmedinf.2014.08.005DOI Listing
November 2014

Fostering EMA's transparency policy.

Eur J Intern Med 2014 Oct 6;25(8):681-4. Epub 2014 Sep 6.

Coordination Centre for Clinical Trials, Medical Faculty, Heinrich-Heine-University, Moorenstr. 5, 40225 Düsseldorf, Germany.

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http://dx.doi.org/10.1016/j.ejim.2014.07.012DOI Listing
October 2014

Socioeconomic factors and effect of evidence-based patient information about primary prevention of type 2 diabetes mellitus--are there interactions?

BMC Res Notes 2014 Aug 18;7:541. Epub 2014 Aug 18.

Institute of Biometrics and Epidemiology, German Diabetes Center, Leibniz Institute at the Heinrich Heine University Düsseldorf, Auf'm Hennekamp 65, 40225 Düsseldorf, Germany.

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http://dx.doi.org/10.1186/1756-0500-7-541DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4148532PMC
August 2014

Effects of nicotine on social cognition, social competence and self-reported stress in schizophrenia patients and healthy controls.

Eur Arch Psychiatry Clin Neurosci 2013 Sep 19;263(6):519-27. Epub 2012 Oct 19.

Department of Psychiatry and Psychotherapy, Medical Faculty, Heinrich Heine University Düsseldorf, LVR Klinikum Düsseldorf, Bergische Landstraße 2, 40629, Düsseldorf, Germany.

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http://dx.doi.org/10.1007/s00406-012-0377-9DOI Listing
September 2013

Revising the ECRIN standard requirements for information technology and data management in clinical trials.

Trials 2013 Apr 5;14:97. Epub 2013 Apr 5.

Coordination Centre for Clinical Trials, Heinrich Heine University, Moorenstrasse 5, 40225, Düsseldorf, Germany.

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http://dx.doi.org/10.1186/1745-6215-14-97DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3653810PMC
April 2013

TNF-α, myocardial perfusion and function in patients with ST-segment elevation myocardial infarction and primary percutaneous coronary intervention.

Clin Res Cardiol 2012 Oct 6;101(10):815-27. Epub 2012 May 6.

Division of Cardiology, Pulmonary Diseases and Vascular Medicine, Department of Medicine, University Hospital Aachen, 52074 Aachen, Germany.

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http://dx.doi.org/10.1007/s00392-012-0465-xDOI Listing
October 2012

Effects of nicotine on social cognition, social competence and self-reported stress in schizophrenia patients and healthy controls.

Eur Arch Psychiatry Clin Neurosci 2013 Sep 19;263(6):519-27. Epub 2012 Oct 19.

Department of Psychiatry and Psychotherapy, Medical Faculty, Heinrich Heine University Düsseldorf, LVR Klinikum Düsseldorf, Bergische Landstraße 2, 40629, Düsseldorf, Germany.

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http://dx.doi.org/10.1007/s00406-012-0377-9DOI Listing
September 2013

[The Coordinating Centers for Clinical Trials (KKS) and the KKS Network: competence for clinical research].

Onkologie 2010 16;33 Suppl 7:11-5. Epub 2010 Sep 16.

KKS-Netzwerk, KKS Düsseldorf, Germany.

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https://www.karger.com/Article/FullText/319734
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http://dx.doi.org/10.1159/000319734DOI Listing
February 2011

[Assessment and importance of clinical trial endpoints in various areas of medicine].

Authors:
Christian Ohmann

Z Evid Fortbild Qual Gesundhwes 2010 ;104(3):250-7; discussion 258

Koordinierungszentrum für Klinische Studien, Medizinische Fakultät, Heinrich-Heine-Universität Düsseldorf.

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http://dx.doi.org/10.1016/j.zefq.2010.03.017DOI Listing
August 2010

Effect of bosentan on skin fibrosis in patients with systemic sclerosis: a prospective, open-label, non-comparative trial.

Rheumatology (Oxford) 2010 Jul 5;49(7):1336-45. Epub 2010 Apr 5.

Department of Dermatology, University of Münster, Münster, Germany.

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http://dx.doi.org/10.1093/rheumatology/keq077DOI Listing
July 2010

Two short-term outcomes after instituting a national regulation regarding minimum procedural volumes for total knee replacement.

J Bone Joint Surg Am 2010 Mar;92(3):629-38

Coordination Centre for Clinical Trials, Heinrich-Heine University, Moorenstrasse 5, 40225 Düsseldorf, Germany.

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https://insights.ovid.com/crossref?an=00004623-201003000-000
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http://dx.doi.org/10.2106/JBJS.H.01436DOI Listing
March 2010

Risk analysis and risk adapted on-site monitoring in noncommercial clinical trials.

Clin Trials 2009 Dec 6;6(6):585-96. Epub 2009 Nov 6.

Clinical Trial Centre Leipzig, University of Leipzig, Leipzig, Germany.

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http://dx.doi.org/10.1177/1740774509347398DOI Listing
December 2009

Superficial soft tissue sarcomas of the extremities and trunk.

World J Surg 2009 Aug;33(8):1641-9

Department of General, Visceral, and Pediatric Surgery, University Hospital Duesseldorf, Moorenstrasse 5, 40225, Duesseldorf, Germany.

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http://dx.doi.org/10.1007/s00268-009-0051-1DOI Listing
August 2009

[Utilities: a solution of a decision problem?].

Z Evid Fortbild Qual Gesundhwes 2008 ;102(6):379-84

Zentrum für Klinische Studien, Universitätsklinikum Regensburg.

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http://dx.doi.org/10.1016/j.zefq.2008.07.016DOI Listing
April 2009

Implementation and effects of Germany's minimum volume regulations: results of the accompanying research.

Dtsch Arztebl Int 2008 Dec 22;105(51-52):890-6. Epub 2008 Dec 22.

Universitätsklinikum der Heinrich-Heine-Universität, Moorenstrasse 5, Düsseldorf, Germany.

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http://dx.doi.org/10.3238/arztebl.2008.0890DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2689625PMC
December 2008

Effect of the frequency of self-monitoring blood glucose in patients with type 2 diabetes treated with oral antidiabetic drugs-a multi-centre, randomized controlled trial.

PLoS One 2008 Aug 28;3(8):e3087. Epub 2008 Aug 28.

Department of Endocrinology, Diabetes and Rheumatology, WHO Collaborating Centre for Diabetes, European Training Centre in Endocrinology and Metabolism, University Hospital Düsseldorf, Düsseldorf, Germany.

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0003087PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2518209PMC
August 2008

Duration of survival after peptic ulcer perforation.

World J Surg 2008 Mar;32(3):408-12

Department of General and Trauma Surgery, Malteser Hospital St. Hildegardis, Bachemer Str. 29-33, 50931 Cologne, Germany.

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http://dx.doi.org/10.1007/s00268-007-9370-2DOI Listing
March 2008

Evaluating compulsory minimum volume standards in Germany: how many hospitals were compliant in 2004?

BMC Health Serv Res 2007 Oct 17;7:165. Epub 2007 Oct 17.

Professorship for Public Health, University Hospital of the Heinrich-Heine University Düsseldorf, Moorenstrasse 5, 40225 Düsseldorf, Germany.

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http://dx.doi.org/10.1186/1472-6963-7-165DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2204003PMC
October 2007

Aluminum load in ICU patients during stress ulcer prophylaxis.

Eur J Intern Med 2006 Dec;17(8):561-6

Department of General Surgery, Georg August University, Robert-Koch-Str. 40, 37075 Goettingen, Germany.

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http://dx.doi.org/10.1016/j.ejim.2006.07.014DOI Listing
December 2006

Neuropsychiatric and cognitive changes after surgery for primary hyperparathyroidism.

World J Surg 2006 May;30(5):680-5

Department of Surgery, St. Antonius-Kliniken, Vogelsangstrasse 106, 42109, Wuppertal, Germany.

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http://dx.doi.org/10.1007/s00268-005-0444-8DOI Listing
May 2006

[A new model of comprehensive data linkage--evaluation of its application in femoral neck fracture].

Z Arztl Fortbild Qualitatssich 2005 ;99(9):547-54

Koordinierungszentrum für Klinische Studien und Funktionsbereich Theoretische Chirurgie, Heinrich-Heine-Universität Düsseldorf.

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February 2006

Do Germans keep patients too long in hospital? A prospective randomized trial.

World J Surg 2005 Sep;29(9):1189-93

Department of Surgery, Heinrich-Heine University, Moorenstrasse 5, Düsseldorf 40225, Germany.

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http://dx.doi.org/10.1007/s00268-005-7742-zDOI Listing
September 2005

European Clinical Research Infrastructures Network: promoting harmonisation and quality in European clinical research.

Lancet 2005 Jan 8-14;365(9454):107-8

ECRIN Co-ordination, CIC INSERM/CHU de Bordeaux, 33604 Pessac, France.

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http://linkinghub.elsevier.com/retrieve/pii/S014067360517720
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http://dx.doi.org/10.1016/S0140-6736(05)17720-4DOI Listing
February 2005

Pharmacological long-term treatment strategies in first episode schizophrenia--study design and preliminary results of an ongoing RCT within the German Research Network on Schizophrenia.

Eur Arch Psychiatry Clin Neurosci 2004 Apr;254(2):129-40

Department of Psychiatry and Psychotherapy, Heinrich-Heine-University Düsseldorf, Rhineland State Clinics Düsseldorf, Bergische Landstrasse 2, 40629 Duesseldorf, Germany.

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http://dx.doi.org/10.1007/s00406-004-0509-yDOI Listing
April 2004

Endoscopic versus operative treatment in high-risk ulcer bleeding patients - results of a randomised study.

Langenbecks Arch Surg 2003 Jan 13;387(9-10):327-36. Epub 2002 Dec 13.

Department of General and Trauma Surgery, St.-Vinzenz Hospital, Düsseldorf, Germany.

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http://link.springer.com/content/pdf/10.1007/s00423-002-0329
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http://link.springer.de/link/service/journals/00423/contents
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http://dx.doi.org/10.1007/s00423-002-0329-3DOI Listing
January 2003

Does size really matter--using a decision tree approach for comparison of three different databases from the medical field of acute appendicitis.

J Med Syst 2002 Oct;26(5):465-77

Laboratory for System Design, Faculty of Electrical Engineering and Computer Science, University of Maribor, Slovenia.

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http://dx.doi.org/10.1023/a:1016461301710DOI Listing
October 2002