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Dr. rer. pol. Klaus Kaier


Postdoctoral research fellow

Photo - Klaus Kaier 
E-mail: kaier@imbi.uni-freiburg.de
Phone: ++49 (0)761 203-6807
Fax: ++49 (0)761 203-7700
FDM, Ernst-Zermelo-Str. 1
Room no.: 108

Research Interests

  • Health Economic Evaluation in Cardiology
  • Secondary Data Analysis
  • Health Care Econometrics
  • Mixed Treatment Comparisons
  • Cost-Effectiveness-Analyses in Clinical Trials
  • Epidemiology of Infectious Diseases

Projects

Selected Publications

 

  • Stachon, P., K. Kaier, V. Oettinger, W. Bothe, M. Zehender, C. Bode and C. von Zur Mühlen (2020): Transapical aortic valve replacement versus surgical aortic valve replacement: A subgroup analyses for at-risk populations. Journal of Thoracic and Cardiovascular Surgery [Epub ahead of print].
  • Kaier, K., T. Heister, J. Wolff and M. Wolkewitz (2020): Mechanical ventilation and the daily cost of ICU care. BMC Health Services Research [Epub ahead of print].
  • Kienle, G.S., P.G. Werthmann, B. Grotejohann, K. Kaier, I. Steinbrenner, S. Voigt-Radloff and R. Huber (2020): A multi-centre, parallel-group, randomised controlled trial to assess the efficacy and safety of eurythmy therapy and tai chi in comparison with standard care in chronically ill elderly patients with increased risk of falling (ENTAiER): a trial protocol. BMC Geriatrics 20(1):108.
  • Pierscianek, D., Y. Ahmadipour, K. Kaier, M.D. Oppong, A. Michel, S. Kebir, M. Stuschke, M. Glas, U. Sure and R. Jabbarli (2020): The SHORT score for preoperative assessment of the risk for short-term survival in glioblastoma. World Neurosurgery [Epub ahead of print].
  • Kaier, K., M. Wolkewitz, P. Hehn, N.T. Mutters and T. Heister (2020): The impact of hospital-acquired infections on the patient-level reimbursement-cost relationship in a DRG-based hospital payment system. International Journal of Health Economics and Management 15(2):e0227345.
  • Oettinger, V., K. Kaier, T, Heidt, M. Hortmann, D. Wolf, A. Zirlik, M. Zehender, C. Bode, C. von Zur Mühlen and P. Stachon (2020): Outcomes of transcatheter aortic valve implantations in high-volume or low-volume centres in Germany. Heart [Epub ahead of print]
  • Wolff, J., A. Gary, D. Jung, C. Normann, K. Kaier, H. Binder, K. Domschke, A. Klimke and M. Franz (2020): Predicting patient outcomes in psychiatric hospitals with routine data: a machine learning approach. BMC Medical Informatics and Decision Making 20(1):21.
  • Maier, A., B. Hammerich, F. Humburger, T. Brieschal, T. Heidt, W. Bothe, H. Schröfel, K. Kaier, M. Zehender, J. Reinöhl, C. Bode, C. von Zur Mühlen and P. Stachon (2020): A logistic regression analysis comparing minimalistic approach and intubation anaesthesia in patients undergoing transfemoral transcatheter aortic valve replacement. PLoS One 15(2):e0227345.
  • Dobler, G., K. Kaier, P. Hehn, M.M. Böhmer, T.M. Keusch and J.P. Borde (2020): Tick-borne encephalitis virus vaccination breakthrough infections in Germany - A retrospective analysis from 2001-2018. Clinical Microbiology and Infection [Epub ahead of print].
  • San Martin Rodriguez, M., K. Kaier, M. Hehn and J.P. Borde (2020): Knowledge, habits and attitudes towards TBE and other tick-borne diseases in German forestry trainees. Ticks and Tick-borne Diseases 11(1):101307.
  • Al Said, S., S. Alabed , K. Kaier, A.R. Tan, C. Bode, J.J. Meerpohl and D. Duerschmied (2019): Non-vitamin K antagonist oral anticoagulants (NOACs) post-percutaneous coronary intervention: a network meta-analysis. Cochrane Database of Systematic Reviews 12:CD013252.
  • Dudareva, M., M. Kümin, W. Vach, K. Kaier, J. Ferguson, M. McNally and M. Scarborough (2019): Short or Long Antibiotic Regimes in Orthopaedics (SOLARIO): a randomised controlled open-label non-inferiority trial of duration of systemic antibiotics in adults with orthopaedic infection treated operatively with local antibiotic therapy. Trials 20(1):693.
  • Kaier, K., T. Heister, E. Motschall, P. Hehn, T. Bluhmki and M. Wolkewitz (2019): Impact of mechanical ventilation on the daily costs of ICU care: a systematic review and meta regression. Epidemiology and Infection 147:e314.
  • Kaier, K., T. Heister, T. Götting, M. Wolkewitz and N.T. Mutters (2019): Measuring the in-hospital costs of Pseudomonas aeruginosa pneumonia: methodology and results from a German teaching hospital. BMC Infectious Diseases 19:1028.
  • Borde, J.B., K. Kaier, P. Hehn, M.M. Böhmer, T.M. Keusch and G. Dobler (2019): Tick-borne encephalitis virus infections in Germany. Seasonality and in-year patterns. A retrospective analysis from 2001-2018. PLoS One 14(10):e0224044.
  • Olivier, M., M. Boeker, S. Hanser, P. Hehn and K. Kaier (2019): The PKMS (German Score for Complex Nursing Measures) as paradigm shift in the G-DRG system: a retrospective observational study based on billing data, Gesundheitsökonomie & Qualitätsmanagement 24(04):191-196.
  • Kaier, K., C. Bode, M. Zehender, C. von zur Mühlen and P. Stachon (2019): Modeling the Volume-Outcome Relationship for TAVR. Journal of the American College of Cardiology 74(16):2115-2116.
  • Zotzmann, V., J. Rilinge, C.N. Lang, K. Kaier, C. Benk, D. Duerschmied, P.M. Biever, C. Bode, T. Wengenmayer and D.L. Staudacher (2019): Epinephrine, inodilator, or no inotrope in venoarterial extracorporeal membrane oxygenation implantation: a single-center experience. Critical Care 23(1):320.
  • Heister, T., M. Wolkewitz, P. Hehn, J. Wolff, M. Dettenkofer, H. Grundmann and K. Kaier (2019): Costs of hospital-acquired Clostridium difficile infections: an analysis on the effect of time-dependent exposures using routine and surveillance data. Cost Effectiveness and Resource Allocation 17:16.
  • Peikert, A., K. Kaier, J. Merz, L. Manhart, I. Schäfer, I. Hilgendorf, P. Hehn, D. Wolf, F. Willecke, X. Sheng, A. Clemens, M. Zehender, C. von Zur Mühlen, C. Bode, A. Zirlik and P. Stachon (2019): Residual inflammatory risk in coronary heart disease: incidence of elevated high-sensitive CRP in a real-world cohort. Clinical Research in Cardiology [Epub ahead of print].
  • Jabbarli, R., D. Pierscianek, R. Rölz, M. Darkwah Oppong, K. Kaier, M. Shah, C. Taschner, C. Mönninghoff, H. Urbach, J. Beck, U. Sure and M. Forsting (2019): Endovascular treatment of cerebral vasospasm after subarachnoid hemorrhage: More is more. Neurology 93(5):e458-e466.
  • Stachon, P., K. Kaier, T. Heidt, W. Bothe, A. Zirlik, M. Zehender, C. Bode and C. von zur Mühlen (2019): Nationwide outcomes of aortic valve replacement for pure aortic regurgitation in Germany 2008–2015. Catheterization and Cardiovascular Interventions [Epub ahead of print].
  • Brühmann, B. A., C. Reese, K. Kaier, M. Ott, C. Maurer, S. Kunert, B. R. Saurer and E. Farin (2019: A complex health services intervention to improve medical care in long-term care homes: study protocol of the controlled coordinated medical care (CoCare) study. BMC Health Services Research 19:332.
  • Al Said, S., S. Alabed, K. Kaier, C. Bode, J.J. Meerpohl and D. Duerschmied (2019): Non-vitamin K antagonist oral anticoagulants (NOACs) post-percutaneous coronary intervention: a network meta-analysis (Protocol). Cochrane Database of Systematic Reviews 1:CD013252.
  • Stachon, P., K. Kaier , A. Zirlik , W. Bothe , T. Heidt , M. Zehender , C. Bode and C. von zur Mühlen (2019): Risk-Adjusted Comparison of In-Hospital Outcomes of Transcatheter and Surgical Aortic Valve Replacement. Journal of the American Heart Association 8(7):e011504.
  • Dammann, P., P. Wittek, M. Darkwah Oppong, B.-O. Hütter, R. Jabbarli, K. Wrede, I. Wanke, C. Mönninghoff, K. Kaier, B. Frank, O. Müller, C. Kleinschnitz, M. Forsting and U. Sure (2019): Relative health-related quality of life after treatment of unruptured intracranial aneurysms: long-term outcomes and influencing factors. Therapeutic Advances in Neurological Disorders 12:1-12.
  • Frank, F., F. Bjerregaard, J. Bengel, E.M. Bitzer, B. Heimbach, K. Kaier, J. Kiekert, L. Krämer, C. Kricheldorff, K. Laubner, A. Maun, G. Metzner, W. Niebling, C. Salm, S. Schütter, J. Seufert, E. Farin and S. Voigt-Radloff (2019): Local, collaborative, stepped and personalised care management for older people with chronic diseases (LoChro): study protocol of a randomised comparative effectiveness trial. BMC Family Geriatrics 19(1):64.
  • Voigt-Radloff, S., A. Schöpf, M. Boeker, L. Frank, E. Farin, K. Kaier, M. Körner, K. Wollmann, B. Lang, J. Meerpohl, R. Möhler, W. Niebling, J. Serong, R. Lange, P. van der Keylen and A. Maun (2019): Well informed physician-patient communication in consultations on back pain - study protocol of the cluster randomized GAP trial. BMC Family Practice 20(1):33.
  • Kaier, K., N.T. Mutters and M. Wolkewitz (2019): Measuring the financial burden of resistance: What should be compared? Clinical Infectious Diseases 69(6):1082.
  • Jabbarli, R., T.F Dinger, D. Pierscianek, M. Darkwah Oppong, B. Chen, P. Dammann, K.H. Wrede, K. Kaier, M. Köhrmann, M. Forsting, C. Kleinschnitz and U. Sure (2019): Intracranial aneurysms in sickle cell disease: A systematic review and case-control study, Current Neurovascular Research 16(1):63-76.
  • Kaier, K., C. von zur Mühlen, A. Zirlik, W. Bothe, P. Hehn, M. Zehender, C. Bode and P. Stachon (2019): Estimating the additional costs per life saved due to transcatheter aortic valve replacement: a secondary data analysis of electronic health records in Germany, European Journal of Health Economics 20(4):625-632.
  • Darkwah Oppong, M., O. Gembruch, D. Pierscianek, M. Köhrmann, C. Kleinschnitz, C. Deuschl, C. Mönninghoff, K. Kaier, M. Forsting, U. Sure and R. Jabbarli (2018): Post-treatment Antiplatelet Therapy Reduces Risk for Delayed Cerebral Ischemia due to Aneurysmal Subarachnoid Hemorrhage, Neurosurgery 85(6):827-833.
  • Adebahr, S., M. Hechtner, N. Schräder, T. Schimek-Jasch, K. Kaier, V.D. Rohr, E. Gkika, F. Momm, J. Gärtner, G. Becker, A.L Grosu and U. Nestle (2019): Early impact of pulmonary stereotactic fractionated body radiotherapy (SBRT) on Quality of Life (QoL): Benefit for patients with low initial scores (STRIPE trial), Journal of Thoracic Oncology 14(3):408-419.
  • Wengenmayer, T., F. Schroth, P.M. Biever, D. Duerschmied, C. Benk, G. Trumme, K. Kaier, C. Bode, D.L. Staudacher (2018): Albumin fluid resuscitation in patients on venoarterial extracorporeal membrane oxygenation (VA-ECMO) therapy is associated with improved survival, Intensive Care Medicine 44(12):2312-2314.
  • Stachon, P., K. Kaier, A. Zirlik, W. Bothe, M. Zehender, C. Bode, C. von zur Mühlen (2018): Development and Results of Transcatheter and Surgical Aortic Valve Replacement in Germany 2014 and 2015, Deutsche medizinische Wochenschrift 143(23):e206-e212.
  • Engler-Hüsch, S., T. Heister, N.T. Mutters, J. Wolff and K. Kaier (2018): In-hospital costs of community-acquired colonization with multidrug-resistant organisms at a German teaching hospital, BMC Health Services Research 18:737.
  • Jabbarli, R., D. Pierscianek, M. Darkwah Oppong, T. Sato, P. Dammann, K.H. Wrede, K. Kaier, M. Köhrmann, M. Forsting, C. Kleinschnitz, A. Roos and U. Sure (2018): Laboratory biomarkers of delayed cerebral ischemia after subarachnoid hemorrhage: a systematic review, Neurosurgical Review [Epub ahead of print].
  • Kern, W., S. Weber, M. Dettenkofer, K. Kaier, H. Bertz, M. Behnke, M. Weisser, T. Götting, A. Widmer, and C. Theilacker (2018): Impact of fluoroquinolone prophylaxis during neutropenia on bloodstream infection: Data from a surveillance program in 8,755 patients receiving high-dose chemotherapy for haematologic malignancies between 2009 and 2014, Journal of Infection 77:68-74.
  • Kaier, K., V. Oettinger, H.Reinecke, C. Schmoor, L. Frankenstein, P. Hehn, C. von zur Mühlen, C. Bode, M. Zehender and J. Reinöhl (2018): Volume-outcome relationship in transcatheter aortic valve implantations in Germany 2008-2014: a secondary data analysis of electronic health records, BMJ Open 8(7):e020204.
  • Stachon, P., M. Zehender, C. Bode, C. von zur Mühlen and K. Kaier (2018): Development and In-Hospital Mortality of Transcatheter and Surgical Aortic Valve Replacement in 2015 in Germany, Journal of the American College of Cardiology 72(4):475-476.
  • Dietrich, E.S., S. Felder and K. Kaier (2018): Kosten nosokomialer Infektionen. In: Dettenkofer M., Frank U., Just H.-M., Lemmen S., Scherrer M. (Eds.): Praktische Krankenhaushygiene und Umweltschutz. Berlin, Heidelberg: Springer.
  • Kaier, K., M. Wolkewitz and T. Heister (2018): Estimating the attributable costs of hospital-acquired infections requires a distinct categorization of cases based on time of infection, American Journal of Infection Control 46(6):729.
  • Stachon, P., K. Kaier, A. Zirlik, J. Reinöhl, T. Heidt, W. Bothe, P. Hehn, M. Zehender, C. Bode and C. von zur Mühlen (2018): Risk factors and outcome of postoperative delirium after transcatheter aortic valve replacement, Clinical Research in Cardiology 107(9):756-762.
  • Kaier, K., C. von zur Mühlen, A. Zirlik, C. Schmoor, K. Roth, W. Bothe, P. Hehn, J. Reinöhl, M. Zehender, C. Bode and P. Stachon (2018): Sex-specific differences in outcome of transcatheter or surgical aortic valve replacement, Canadian Journal of Cardiology 34(8):992-998.
  • Heister, T., M. Wolkewitz and K. Kaier (2018): Determining the Attributable Costs of Clostridium difficile Infections When Exposure Time Is Lacking: Be Wary of "Conditioning on the Future", Infection Control & Hospital Epidemiology 39(6):759-760.
  • Jabbarli, R., T.F. Dinger, M. Darkwah Oppong, D. Pierscianek, P. Dammann, K.H. Wrede, K. Kaier, M. Köhrmann, M. Forsting, C. Kleinschnitz and U. Sure (2018): Risk Factors for and Clinical Consequences of Multiple Intracranial Aneurysms: A Systematic Review and Meta-Analysis, Stroke 49(4):848-855.
  • Jabbarli, R., D. Pierscianek, R. Rölz, M. Reinhard, M. Darkwah Oppong, C. Scheiwe, P. Dammann, K. Kaier, K.H. Wrede, M. Shah, J. Zentner and U. Sure (2018): Gradual External Ventricular Drainage Weaning Reduces The Risk of Shunt Dependency After Aneurysmal Subarachnoid Hemorrhage: A Pooled Analysis, Operative Neurosurgery 15(5):498-504.
  • Heister, T., M. Wolkewitz and K. Kaier (2018): Estimating the additional costs of surgical site infections: length bias, time-dependent bias, and conditioning on the future, Journal of Hospital Infection 99(1):103-104.
  • Kaier, K., H. Reinecke, H. Nacy, L. Frankenstein, M. Bode, W. Vach, P. Hehn, A. Zirlik, M. Zehender and J. Reinöhl (2018): The impact of post-procedural complications on reimbursement, length of stay and mechanical ventilation among patients undergoing transcatheter aortic valve implantation in Germany, European Journal of Health Economics 19(2):223-228.
  • Wolff, J., T. Heister, C. Normann and K. Kaier (2018): Hospital costs associated with psychiatric comorbidities: a retrospective study, BMC Health Services Research 18(1):67.
  • Gkika, E., W. Vach, S. Adebahr, T. Schimeck-Jasch,A. Brenner, T. Brunner, K. Kaier, A. Prasse, J. Muller-Quernheim, A. Grosu, G. Zissel and U. Nestle (2017): Is serum level of CC chemokine ligand 18 a biomarker for the prediction of radiation induced lung toxicity (RILT)? Plos One 12(9):e0185350.
  • Malyar N.M., K. Kaier, E. Freisinger, F. Lüders, G. Kaleschke, H. Baumgartner, L. Frankenstein, H. Reinecke and J. Reinöhl (2017): Prevalence and Impact of Critical Limb Ischemia on In-Hospital Outcome in Transcatheter Aortic Valve Implantation in Germany, EuroIntervention 13(11):1281-1287.
  • Kaier, K., F. von Kampen, Baumbach, C. von Zur Mühlen, P. Hehn, W. Vach, M. Zehender, C. Bode und J. Reinöhl (2017): Two-year post- discharge costs of care among patients treated with transcatheter or surgical aortic valve replacement in Germany, BMC Health Services Research 17:473.
  • Heister, T., C. Hagist and K. Kaier (2017): Resistance Elasticity of Antibiotic Demand in Intensive Care. Health Economics 26(7):892-909.
  • Gutmann, A., K. Kaier, L. Frankenstein, A. Zirlik, W. Bothe, C. von Zur Mühlen, M. Zehender, J. Reinöhl, C. Bode and P. Stachon (2017): Impact of pulmonary hypertension on in-hospital outcome after surgical or transcatheter aortic valve replacement, EuroIntervention 13(7):804-810.
  • Lüders F., K. Kaier, G. Kaleschke, K. Gebauer, M. Meyborg, N.M. Malyar, E. Freisinger, H. Baumgartner, H. Reinecke and J. Reinöhl (2017): Association of CKD with Outcomes Among Patients Undergoing Transcatheter Aortic Valve Implantation, Clinical Journal of the American Society of Nephrology 12(5):718- 726.
  • Kaier, K., S. Hils, S. Fetzer, P. Hehn, A. Schmid, D. Hauschke, L. Bogatyreva, B. Jänigen and P. Pisarski (2017): Results of a randomized controlled trial analyzing telemedically supported case management in the first year after living donor kidney transplantation - a budget impact analysis from the healthcare perspective, Health Economics Review 7:1.
  • Kaier, K., H. Reinecke, C. Schmoor, L. Frankenstein, W. Vach, P. Hehn, A. Zirlik, C. Bode, M. Zehender and J. Reinöhl (2017): Learning Curves Among All Patients Undergoing Transcatheter Aortic Valve Implantation in Germany: A Retrospective Observational Study, International Journal of Cardiology 235:17-21.
  • Jabbarli, R., M. Reinhard, R. Roelz, K. Kaier, A. Weyerbrock, C. Taschner, C. Scheiwe and M. Shah (2017): Clinical relevance of anterior cerebral artery asymmetry in aneurysmal subarachnoid hemorrhage, J Neurosurg 127(5):1070-1076.
  • Heister, T.,  K. Kaier  and M. Wolkewitz (2017): Estimating the burden of nosocomial infections: Time dependency and cost clustering should be taken into account, American Journal of Infection Control 45(1):94-95.
  • Reinöhl, J., K. Kaier, H. Reinecke, L. Frankenstein, A. Zirlik, M. Zehender, C. von Zur Mühlen, C. Bode and P. Stachon (2016): Transcatheter Aortic Valve Replacement: The New Standard in Patients With Previous Coronary Bypass Grafting? JACC: Cardiovascular Interventions 9(20):2137-2143.
  • Kaier, K., A. Gutmann, H. Baumbach, C. von Zur Mühlen, P. Hehn, W. Vach, F. Beyersdorf, M. Zehender, C. Bode and J. Reinöhl (2016): Quality of life among elderly patients undergoing transcatheter or surgical aortic valve replacement - a model-based longitudinal data analysis, Health and Quality of Life Outcomes 14(1):109.
  • Borde, J.P., S. Nussbaum, S. Hauser, P. Hehn, J. Hübner, G. Sitaru, S. Köller, B. Schweigert, K.d. With, W.V. Kern and K. Kaier (2016): Implementing an intensified antibiotic stewardship programme targeting daptomycin use in orthopaedic surgery: a cost-benefit analysis from the hospital perspective. Infection 44(3):301-307.
  • Jabbarli, R., M. Reinhard, R. Roelz, M. Shah, W.D. Niesen, K. Kaier, C. Taschner, A. Weyerbrock and V. Van Velthoven (2016): Intracerebral Hematoma Due to Aneurysm Rupture: Are There Risk Factors Beyond Aneurysm Location? Neurosurgery 78(6):813-820.
  • Reinöhl, J., D. Psyrakis, K. Kaier, S. Kodirov, M. Siepe, A. Gutmann, C. von Zur Mühlen, M. Moser, I. Ahrens, G. Pache, A. Zirlik, M. Langer, F. Beyersdorf, M. Zehender, C. Bode and P. Blanke (2016): Aortic root volume is associated with contained rupture of the aortic annulus in balloon-expandable transcatheter aortic valve replacement. Catheterization and Cardiovascular Interventions 87(4):807-817.
  • Jabbarli, R., M. Reinhard, M. Shah, R. Roelz, W.D. Niesen, K. Kaier, C. Taschner, A. Weyerbrock and V. Van Velthoven (2016): The predictors and clinical impact of intraventricular hemorrhage in patients with aneurysmal subarachnoid hemorrhage Cerebrovascular Diseases 41(5-6):265-272.
  • Jabbarli, R., M. Reinhard, R. Roelz, M. Shah, W.D. Niesen, K. Kaier, C. Taschner, A. Weyerbrock and V. Van Velthoven (2016): The predictors and clinical impact of intraventricular hemorrhage in patients with aneurysmal subarachnoid hemorrhage International Journal of Stroke 11(1):68-76.
  • Reinöhl J., K. Kaier, H. Reinecke, C. Schmoor, L. Frankenstein, W. Vach, A. Cribier, F. Beyersdorf, C. Bode and M. Zehender (2015): Effect of Availability of Transcatheter Aortic-Valve Replacement on Clinical Practice. New England Journal of Medicine 373(25): 2438-2447.
  • Wolff, J., P. McCrone, A. Patel, K. Kaier and C. Normann (2015): Predictors of length of stay in psychiatry: analyses of electronic medical records. BMC Psychiatry 15:238.
  • Reinöhl, J., K. Kaier, A. Gutmann, S. Sorg, C. von Zur Mühlen, M. Siepe, H. Baumbach, M. Moser, A. Geibel, A. Zirlik, P. Blanke, W. Vach, F. Beyersdorf, C. Bode and M. Zehender (2015): In-hospital resource utilization in surgical and transcatheter aortic valve replacement. BMC Cardiovascular Disorder 15:132.
  • Kaier, K. and C. Müller (2015): New figures on unfunded public pension entitlements across Europe: concept, results and applications, Empirica 42(4): 865-895.
  • Jabbarli, R., M. Reinhard, R. Roelz, M. Shah, W.D. Niesen, K. Kaier, C. Taschner, A. Weyerbrock and V. Van Velthoven (2015): Outcome Prediction after Non-aneurysmal Non-traumatic Subarachnoid Hemorrhage, Current Neurovascular Research 12(3): 269-276.
  • Jabbarli, R., M. Reinhard, R. Roelz, M. Shah, W.D. Niesen, K. Kaier, C. Taschner, A. Weyerbrock and V. Van Velthoven (2015): Early identification of individuals at high risk for cerebral infarction after aneurysmal subarachnoid hemorrhage: the BEHAVIOR score, Journal of Cerebral Blood Flow & Metabolism 35(10): 1587-1592.
  • Jabbarli, R., M. Reinhard, W.D. Niesen, R. Roelz, M. Shah, K. Kaier, B. Hippchen, C. Taschner and V. Van Velthoven (2015): Predictors and impact of early cerebral infarction after aneurysmal subarachnoid hemorrhage, European Journal of Neurology 22(6): 941-947.
  • Stachon, P., K. Kaier, S. Milde, G. Pache, S. Sorg, M. Siepe, C. von zur Mühlen, A. Zirlik, F. Beyersdorf and M. Langer (2015): Two-year survival of patients screened for transcatheter aortic valve replacement with potentially malignant incidental findings in initial body computed tomography, European Heart Journal - Cardiovascular Imaging 16(7): 731-737.
  • Kaier, K. and S. Fetzer (2015): Das Arzneimittelmarktneuordnungsgesetz (AMNOG) aus ökonomischer Sicht, Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz 58: 291-297.
  • Kaier, K., A. Gutmann, W. Vach, S. Sorg, M. Siepe, C. von Zur Mühlen, M. Moser, P. Blanke, F. Beyersdorf, M. Zehender, C. Bode and J. Reinöhl (2015): " Heart Team" decision making in elderly patients with symptomatic aortic valve stenosis who underwent AVR or TAVI-a look behind the curtain. Results of the prospective TAVI Calculation of Costs Trial (TCCT), EuroIntervention 11(8):793-798.
  • Gutmann, A., K. Kaier, S. Sorg, C. von zur Mühlen, M. Siepe, M. Moser, A. Geibel, A. Zirlik, I. Ahrens, H. Baumbach, F. Beyersdorf, W. Vach, M. Zehender, C. Bode and J. Reinöhl (2015): Analysis of the additional costs of clinical complications in patients undergoing transcatheter aortic valve replacement in the German Health Care System, International Journal of Cardiology 179: 231-237.
  • Borde, J.P., W.V. Kern, M. Hug, M. Steib-Bauert, K.d. With, H.J. Busch and K. Kaier (2015): Implementation of an intensified antibiotic stewardship programme targeting third-generation cephalosporin and fluoroquinolone use in an emergency medicine department, Emergency Medicine Journal 32: 509-515.
  • Borde, J.P., S. Litterst, M. Ruhnke, R. Feik, J. Hübner, K. deWith, K. Kaier and W.V. Kern (2015): Implementing an intensified antibiotic stewardship programme targeting cephalosporin and fluoroquinolone use in a 200-bed community hospital in Germany, Infection 43:45-50.
  • Jabbarli, R., M. Shah, C. Taschner, K. Kaier, B. Hippchen and V. Van Velthoven (2014): Clinical utility and cost-effectiveness of CT-angiography in the diagnosis of nontraumatic subarachnoid hemorrhage, Neuroradiology 56(10): 817-824.
  • Schwander, B., K. Banz, K. Kaier and S. Walzer (2014): Evaluation of a Possible Predictor for Federal Joint Committee Decisions on Early Benefit Assessments according to the German Act on the Reform of the Market for Medicinal Products, Health Policy 117(3): 334-344.
  • Borde, J., N. Batin, S. Rieg, R. Feik, C. Reimling, W. Kern, K. de With, J. Hübner, M. Ruhnke and K. Kaier (2014): Adherence to an antibiotic stewardship bundle targeting Staphylococcus aureus blood stream infections at a 200-bed community hospital, Infection 42(4): 713-71.
  • Kaier, K., M.L. Lambert, U.K. Frank, W. Vach, M. Wolkewitz, E. Tacconelli, J. Rello, U. Theuretzbacher and M. Martin (2014): Impact of availability of guidelines and active surveillance in reducing the incidence of ventilator-associated pneumonia in Europe and worldwide, BMC Infectious Diseases 14(1): 199.
  • Borde, J.P., K. Kaier, M. Steib-Bauert, W. Vach, A. Geibel-Zehender, H. Busch, H. Bertz, M. Hug and W.V. Kern (2014): Feasibility and impact of an intensified antibiotic stewardship programme targeting cephalosporin and fluoroquinolone use in a tertiary care university medical center, BMC Infectious Diseases 14(1): 201.
  • Kaier, K. (2013): The impact of pricing and patent expiration on demand for pharmaceuticals: an examination of the use of broad-spectrum antimicrobials, Health Economics, Policy and Law 8(1): 7-20.
  • Walzer, S., M. Nuijten, C. Wiesner, K. Kaier, P.O. Johansson and S. Oertel (2013): Microeconomic surplus in health care: Applied economic theory in health care in four European countries, Frontiers in Pharmaceutical Medicine and Outcomes Research 4: 17.
  • Kaier, K. and U. Frank (2013): In search of useful methods for measuring health and economic consequences of antimicrobial resistance, Clinical Infectious Diseases 57(8): 1220-1222.
  • Kaier, K. (2012): Eine wohlfahrtsökonomische Analyse der Übernutzung patentfreier Antibiotika und deren Auswirkungen auf die Verbreitung resistenter Infektionserreger, Schmollers Jahrbuch - Journal of Applied Social Science Studies 132(4): 527-548.
  • Kaier, K. and S. Moog (2012): Economic consequences of the demography of MRSA patients and the impact of broad-spectrum antimicrobials, Applied Health Economics and Health Policy 10(4): 227-234.
  • Kaier, K. (2012): Economic modeling of the persistence of antimicrobial resistance, Natural Resource Modeling 25(2): 388-402.
  • Lister, J., S. Stanisic, K. Kaier, C. Hagist, D. Gultyaev and S. Walzer (2012): Societal savings in patients with advanced non-squamous non-small-cell lung cancer receiving bevacizumab-based versus non-bevacizumab-based treatments in France, Germany, Italy, and Spain, ClinicoEconomics and Outcomes Research 4: 299-305.
  • Kaier, K. (2012): Economic implications of the dynamic relationship between antibiotic use and hospital-acquired infections, Value in Health 15(1): 87-93.
  • Kaier, K., N.T. Mutters and U. Frank (2012): Bed occupancy rates and hospital-acquired infections--should beds be kept empty?, Clinical Microbiology and Infection 18(10): 941-945.
  • Kaier, K., C. Wilson, M. Hulscher, H. Wollersheim, A. Huis, M. Borg, E. Scicluna, M.L. Lambert, M. Palomar, E. Tacconelli, G. De Angelis, M. Schumacher, M. Wolkewitz, E.M. Kleissle and U. Frank (2011): Implementing strategic bundles for infection prevention and management, Infection 40(2): 225-228.
  • Kaier, K., E. Huppertz, U. Frank and V. Mersch-Sundermann (2011): Management von Krankenhausinfektionen - Ressourcenverbrauch und Kosteneffektivität, Der Klinikarzt 40(3): 138-141.
  • Kaier, K., U. Frank and E. Meyer (2011): Economic incentives for the (over-)prescription of broad-spectrum antimicrobials in German ambulatory care, Journal of Antimicrobial Chemotherapy 66(7): 1656-1658.
  • Kaier, K., D. Luft, M. Dettenkofer, M. Kist and U. Frank (2011): Correlations between bed occupancy rates and Clostridium difficile infections – A time-series analysis, Epidemiology and Infection 139: 482-485.
  • Kaier, K. and U. Frank (2010): Measuring the Externality of Antibacterial Use from Promoting Antimicrobial Resistance, Pharmacoeconomics 28(12): 1123-1128.
  • Kaier, K., U. Frank, A. Conrad and E. Meyer (2010): Seasonal and Ascending Trends in the Incidence of Carriage of Extended-Spectrum b-Lactamase-Producing Escherichia coli and Klebsiella Species in 2 German Hospitals, Infection Control and Hospital Epidemiology 31(11): 1154-1159.
  • Kaier, K., M. Dettenkofer, E. Meyer and U. Frank (2010): Epidemiology meets econometrics: Using time-series analysis to observe the impact of bed occupancy rates on the spread of multi drug-resistant bacteria, Journal of Hospital Infection 76: 108-113.
  • Conrad, A., K. Kaier, U. Frank and M. Dettenkofer (2010): Are short training sessions on hand hygiene effective in preventing hospital-acquired MRSA? A time-series analysis, American Journal of Infection Control 38(7): 559-561.
  • Kaier, K. and U. Frank (2009): Antimikrobielle Resistenz als externer Effekt des Einsatzes von Antibiotika - Zusammenhänge und Implikationen für die pharmakoökonomische Analyse des klinikinternen Einsatzes von Antibiotika, Gesundheitsökonomie & Qualitätsmanagement 14(03): 127-131.
  • Kaier, K., C. Hagist, U. Frank, A. Conrad and E. Meyer (2009): Two time-series analyses of the impact of antibiotic consumption and alcohol-based hand disinfection on the incidences of nosocomial methicillin-resistant Staphylococcus aureus infection and Clostridium difficile infection, Infection Control and Hospital Epidemiology 30(4): 346-353.
  • Kaier, K., U. Frank, C. Hagist, A. Conrad and E. Meyer (2009): The impact of antimicrobial drug consumption and alcohol-based hand rub use on the emergence and spread of extended-spectrum {beta}-lactamase-producing strains: a time-series analysis, Journal of Antimicrobial Chemotherapy 63(3): 609-614.
  • Kaier, K., C. Wilson, M. Chalkley, P. Davey, C. Suetens, H. Grundmann, M. de Kraker, M. Schumacher, M. Wolkewitz and U. Frank (2008): Health and Economic Impacts of Antibiotic Resistance in European Hospitals - Outlook on the BURDEN Project, Infection 36(5): 492-494.

 

Publications

University of Freiburg Research Database:

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Short CV

Since 2012 Postdoctoral research fellow, Institute of Medical Biometry and Statistics, University Medical Center Freiburg
2012 Dr. rer. pol. (equivalent to a Ph.D. in Economics)
2011-2012 Research associate, Department of Infectious Diseases, Heidelberg University Hospital
2008-2012 Research associate, Institute of Public Finance, University of Freiburg
2007-2011 Research associate, Department of Environmental Health Sciences, University Medical Center Freiburg
2003-2007 Diploma in Economics (Dipl. Volkswirt) at the University of Freiburg
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