Ibrahim Demirer

Dr. Ibrahim Demirer, M. Sc. Empirical Social Research & Sociology


Ibrahim Demirer studied sociology and empirical social research at the University of Cologne and worked at the Institute for Sociology and Social Psychology. There, he dealt with the management, processing and analysis of quantitative data in the context of socio-epidemiological issues.

From November 2017 to April 2021, Mr Demirer was first a research assistant and then an operational project manager in the MamBo project at IMVR. In addition, from 2018 to 2020, Mr Demirer coordinated the Master’s joint study program in health care science. Due to his expertise, Mr Demirer is the contact person for questions regarding study design and methods for quantitative analysis.

In his dissertation, Mr Demirer focuses on the influence of mediators on the development of mental health in multimorbid individuals. A particular focus lies in the most causal evaluation of observational data using non-parametric, quasi-experimental mediation analysis techniques.

  • Methods of causal inference in health services research.
  • Development and maintenance of mental health
  • Allostatic load and processes of stress somatization
  • Demirer, I., Kühhirt, M., Karbach, U. & Pfaff, H. (2022). Does positive affect mediate the association of multimorbidity on depressive symptoms? Aging & mental health, 26(1), 65–76. https://doi.org/10.1080/13607863.2020.1870209
  • Demirer, I., Bethge, M., Spyra, K., Karbach, U. & Pfaff, H. (2021). Does social support mediate the effect of multimorbidity on mental wellbeing in the German working population? A longitudinal mediation analysis using structural equation modelling. SSM – population health, 13, 100744. https://doi.org/10.1016/j.ssmph.2021.100744
  • Pfaff, H., Demirer, I. & Nellessen-Martens, G. (2021). Berücksichtigung des Kontextes bei der Evaluation und Interpretation der Wirkung von neuen Versorgungsformen: Plädoyer für eine kontextbezogene Versorgungsforschung. Gesundheits- und Sozialpolitik(3), 26–33. https://doi.org/10.5771/1611-5821-2021-3-26
  • Richter, S., Demirer, I., Nocon, M., Pfaff, H. & Karbach, U. (2021). When do physicians perceive the success of a new care model differently? BMC health services research, 21(1), 1058. https://doi.org/10.1186/s12913-021-07061-4
  • Stöcker, A., Demirer, I., Gunkel, S., Hoffmann, J., Mause, L., Ohnhäuser, T. & Scholten, N. (2021). Stockpiled personal protective equipment and knowledge of pandemic plans as predictors of perceived pandemic preparedness among German general practitioners. PloS one, 16(8), e0255986. https://doi.org/10.1371/journal.pone.0255986
  • Zirves, M., Demirer, I. & Pfaff, H. (2021). Everyday Life and Social Contacts of Dementia and Non-Dementia Residents over 80 Years in Long-Term Inpatient Care: A Multi-Level Analysis on the Effect of Staffing. International journal of environmental research and public health, 18(21), 11300. https://doi.org/10.3390/ijerph182111300
  • Demirer, I., Scholten, N. & Stöcker, A. (2020). Sektorenübergreifende Arzneimitteltherapie aus Patientensicht. In D. Grandt, V. Lappe & I. Schubert (Hrsg.), Schriftenreihe zur Gesundheitsanalyse: Bd. 23. BARMER Arzneimittelreport 2020: Sektorenübergreifende Arzneimitteltherapie (S. 86–105). Barmer.
  • Richter, S., Demirer, I., Choi, K.‑E., Hartrampf, J., Pfaff, H. & Karbach, U. (2020). People with multimorbidity in outpatient care: patient-focused and needs-oriented healthcare management (MamBo) – protocol for a multiperspective evaluation study. BMC health services research, 20(1), 296. https://doi.org/10.1186/s12913-020-05178-6