Falk Hoffmann

Summary

Affiliation: University of Bremen
Country: Germany

Publications

  1. ncbi request reprint [New use of benzodiazepines and the risk of hip fracture: A case-crossover study]
    F Hoffmann
    Universitat Bremen, Institut für Public Health und Pflegeforschung IPP AG Arzneimittelanwendungsforschung, Ausser der Schleifmühle 35 37, 28203, Bremen, Germany
    Z Gerontol Geriatr 39:143-8. 2006
  2. doi request reprint [Differences in sociodemographic characteristics, health, and health service use of children and adolescents according to their health insurance funds]
    F Hoffmann
    Zentrum für Sozialpolitik ZeS, Abteilung Gesundheitsökonomie, Gesundheitspolitik und Versorgungsforschung, Universitat Bremen, 330440, 28334, Bremen, Deutschland
    Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 57:455-63. 2014
  3. doi request reprint Diagnoses indicating pain and analgesic drug prescription in patients with dementia: a comparison to age- and sex-matched controls
    Falk Hoffmann
    Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, University of Bremen, Postfach 33 04 40, D 28334 Bremen, Germany
    BMC Geriatr 14:20. 2014
  4. doi request reprint Impact of diabetes on costs before and after major lower extremity amputations in Germany
    Falk Hoffmann
    University of Bremen, Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, Postfach 33 04 40, D 28334, Bremen, Germany Electronic address
    J Diabetes Complications 27:467-72. 2013
  5. pmc Benefits and risks of benzodiazepines and Z-drugs: comparison of perceptions of GPs and community pharmacists in Germany
    Falk Hoffmann
    University of Bremen, Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, Bremen, Germany
    Ger Med Sci 11:Doc10. 2013
  6. doi request reprint Perceptions of German GPs on benefits and risks of benzodiazepines and Z-drugs
    F Hoffmann
    University of Bremen, Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, Bremen, Germany
    Swiss Med Wkly 143:w13745. 2013
  7. doi request reprint Outpatient treatment in German adolescents with depression: an analysis of nationwide health insurance data
    Falk Hoffmann
    Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, University of Bremen, Bremen, Germany
    Pharmacoepidemiol Drug Saf 21:972-9. 2012
  8. doi request reprint [Prescription of high-potency opioids in 2011]
    F Hoffmann
    Zentrum für Sozialpolitik ZeS, Abteilung Gesundheitsökonomie, Gesundheitspolitik und Versorgungsforschung, Universitat Bremen, Postfach 330440, 28334, Bremen, Deutschland
    Schmerz 26:707-14. 2012
  9. doi request reprint [Structural differences between health insurance funds and their impact on health services research: results from the Bertelsmann Health-Care Monitor]
    F Hoffmann
    Universitat Bremen, ZeS, Abteilung Gesundheitsökonomie, Gesundheitspolitik und Versorgungsforschung, 28334 Bremen
    Gesundheitswesen 74:291-7. 2012
  10. doi request reprint Do persons that changed health insurance differ from those who did not? The case of diabetes
    F Hoffmann
    University of Bremen, Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, Bremen, Germany
    Exp Clin Endocrinol Diabetes 119:569-72. 2011

Detail Information

Publications45

  1. ncbi request reprint [New use of benzodiazepines and the risk of hip fracture: A case-crossover study]
    F Hoffmann
    Universitat Bremen, Institut für Public Health und Pflegeforschung IPP AG Arzneimittelanwendungsforschung, Ausser der Schleifmühle 35 37, 28203, Bremen, Germany
    Z Gerontol Geriatr 39:143-8. 2006
    ..However, the population attributable risk (PAR) and, therefore, the percentage of preventable events is small (PAR: 0.55%; 95% CI 0.05-1.06%)...
  2. doi request reprint [Differences in sociodemographic characteristics, health, and health service use of children and adolescents according to their health insurance funds]
    F Hoffmann
    Zentrum für Sozialpolitik ZeS, Abteilung Gesundheitsökonomie, Gesundheitspolitik und Versorgungsforschung, Universitat Bremen, 330440, 28334, Bremen, Deutschland
    Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 57:455-63. 2014
    ..Our results are also of relevance for health services research using the claims data of health insurance funds. ..
  3. doi request reprint Diagnoses indicating pain and analgesic drug prescription in patients with dementia: a comparison to age- and sex-matched controls
    Falk Hoffmann
    Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, University of Bremen, Postfach 33 04 40, D 28334 Bremen, Germany
    BMC Geriatr 14:20. 2014
    ..In a large cohort of patients with incident dementia and age- and sex-matched controls we examined (1) how often they receive diagnoses indicating pain, (2) how often they receive analgesics and (3) in which agents and formulations...
  4. doi request reprint Impact of diabetes on costs before and after major lower extremity amputations in Germany
    Falk Hoffmann
    University of Bremen, Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, Postfach 33 04 40, D 28334, Bremen, Germany Electronic address
    J Diabetes Complications 27:467-72. 2013
    ..To compare direct medical costs 1 year before up to 3 years after first major lower extremity amputation (LEA) between patients with and without diabetes...
  5. pmc Benefits and risks of benzodiazepines and Z-drugs: comparison of perceptions of GPs and community pharmacists in Germany
    Falk Hoffmann
    University of Bremen, Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, Bremen, Germany
    Ger Med Sci 11:Doc10. 2013
    ..Aim was to compare perceptions on benefits and harms of benzodiazepines and Z-drugs between general practitioners (GPs) and community pharmacists (CPs)...
  6. doi request reprint Perceptions of German GPs on benefits and risks of benzodiazepines and Z-drugs
    F Hoffmann
    University of Bremen, Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, Bremen, Germany
    Swiss Med Wkly 143:w13745. 2013
    ..This is not supported by current evidence and guidelines. The aim of this study was to compare the perceptions of GPs on the benefits and harms of benzodiazepines and Z-drugs...
  7. doi request reprint Outpatient treatment in German adolescents with depression: an analysis of nationwide health insurance data
    Falk Hoffmann
    Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, University of Bremen, Bremen, Germany
    Pharmacoepidemiol Drug Saf 21:972-9. 2012
    ..Data on medical treatment of adolescents with depression are scarce. This study aimed to examine outpatient health services utilisation of depressive disorders in adolescents...
  8. doi request reprint [Prescription of high-potency opioids in 2011]
    F Hoffmann
    Zentrum für Sozialpolitik ZeS, Abteilung Gesundheitsökonomie, Gesundheitspolitik und Versorgungsforschung, Universitat Bremen, Postfach 330440, 28334, Bremen, Deutschland
    Schmerz 26:707-14. 2012
    ..The aim of this study was to analyze the prescription of high-potency (WHO step III) opioids with respect to regional differences and to assess the proportion of opioid-naïve new users of transdermal fentanyl...
  9. doi request reprint [Structural differences between health insurance funds and their impact on health services research: results from the Bertelsmann Health-Care Monitor]
    F Hoffmann
    Universitat Bremen, ZeS, Abteilung Gesundheitsökonomie, Gesundheitspolitik und Versorgungsforschung, 28334 Bremen
    Gesundheitswesen 74:291-7. 2012
    ....
  10. doi request reprint Do persons that changed health insurance differ from those who did not? The case of diabetes
    F Hoffmann
    University of Bremen, Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, Bremen, Germany
    Exp Clin Endocrinol Diabetes 119:569-72. 2011
    ..We aimed to compare German adults that changed health insurance since 1996 with those who did not with special emphasis on diabetes...
  11. pmc The disease management program for type 2 diabetes in Germany enhances process quality of diabetes care - a follow-up survey of patient's experiences
    Ingmar Schafer
    Department of Primary Medical Care, Center of Psychosocial Medicine, University Medical Center Hamburg Eppendorf, Martinistr 52, 20246 Hamburg, Germany
    BMC Health Serv Res 10:55. 2010
    ....
  12. doi request reprint [Health services research in oncology using claims data]
    Falk Hoffmann
    Abteilung Gesundheitsökonomie, Gesundheitspolitik und Versorgungsforschung, ZeS, Universitat Bremen, Bremen, Germany
    Med Klin (Munich) 105:409-15. 2010
    ..Comparatively, little is known about health care utilization of cancer patients...
  13. doi request reprint Regional variations of private prescriptions for the non-benzodiazepine hypnotics zolpidem and zopiclone in Germany
    Falk Hoffmann
    Division Health Economics, Centre for Social Policy Research, Health Policy and Outcomes Research, University of Bremen, Bremen, Germany
    Pharmacoepidemiol Drug Saf 19:1071-7. 2010
    ..We aim to quantify SHI versus private prescriptions of Z-drugs and analyze regional variations...
  14. doi request reprint Immortal time bias and survival in patients who self-monitor blood glucose in the Retrolective Study: self-monitoring of Blood Glucose and Outcome in Patients with Type 2 Diabetes (ROSSO)
    F Hoffmann
    Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, University of Bremen, Ausser der Schleifmuehle 35 37, 28203 Bremen, Germany
    Diabetologia 54:308-11. 2011
    ..However, these impressive benefits conflict with results from observational studies and randomised controlled trials. We aimed to show that these findings are caused by a flawed design that introduced immortal time bias...
  15. doi request reprint The effect of diabetes on incidence and mortality in end-stage renal disease in Germany
    Falk Hoffmann
    Division Health Economics, Health Policy and Outcomes Research, Centre for Social Policy Research, University of Bremen, Germany
    Nephrol Dial Transplant 26:1634-40. 2011
    ..We aimed to examine the epidemiology and mortality risk of patients with incident end-stage renal disease (ESRD) in diabetic and non-diabetic individuals and to determine differences between sexes...
  16. doi request reprint Did the removal of the indication of nocturnal enuresis for intranasal desmopressin change prescribing practice?
    Falk Hoffmann
    Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, University of Bremen, Bremen, Germany
    Pharmacoepidemiol Drug Saf 20:105-9. 2011
    ..Objective of this study was to examine whether and how fast this regulatory decision changed prescribing in affected children...
  17. doi request reprint Diabetes prevalence based on health insurance claims: large differences between companies
    F Hoffmann
    University of Bremen, Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, Bremen, Germany
    Diabet Med 28:919-23. 2011
    ..We investigated if there are substantial differences in the prevalence of diabetes between members of different health insurance funds in Germany and, if so, which variables might explain these differences...
  18. doi request reprint [Urology needs health services research: the case of small renal tumours]
    F Hoffmann
    ZeS, Abteilung Gesundheitsökonomie, Gesundheitspolitik und Versorgungsforschung, Universitat Bremen, Postfach 33 04 40, 28334 Bremen, Deutschland
    Urologe A 50:678-84. 2011
    ..Therefore, the aim of health services research is to create a scientific basis for continuous improvements in health care. Urology needs health services research and we should find ways to overcome barriers to improve quality of care...
  19. pmc Impact of geriatric comorbidity and polypharmacy on cholinesterase inhibitors prescribing in dementia
    Falk Hoffmann
    University of Bremen, Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, Bremen, Germany
    BMC Psychiatry 11:190. 2011
    ..We aimed to study if geriatric comorbidity and polypharmacy influence the prescription of ChEIs in patients with dementia in Germany...
  20. doi request reprint Which treatments do children with newly diagnosed non-organic urinary incontinence receive? An analysis of 3,188 outpatient cases from Germany
    Falk Hoffmann
    Division Health Economics, Health Policy and Outcomes Research, Centre for Social Policy Research, University of Bremen, Bremen, Germany
    Neurourol Urodyn 31:93-8. 2012
    ..Objectives of this study were to examine the administrative incidence of urinary incontinence in children and to assess related outpatient health services utilization in this cohort...
  21. doi request reprint [Regional differences in the use of 'no substitution' in the elderly after introduction of rebate contracts]
    F Hoffmann
    Universitat Bremen, ZeS, Abteilung Gesundheitsökonomie, Gesundheitspolitik und Versorgungsforschung, Ausser der Schleifmühle 35 37, Bremen
    Gesundheitswesen 73:438-42. 2011
    ..We have studied the differences between physicians belonging to different regional Associations of Statutory Health Insurance Physicians (Kassenärztliche Vereinigungen, KVs) in the use of the no-substitution option in the elderly...
  22. doi request reprint [Implementation of "aut idem" before and after introduction of rebate contracts]
    F Hoffmann
    ZeS, Abteilung Gesundheitsökonomie, Gesundheitspolitik und Versorgungsforschung, Universitat Bremen
    Dtsch Med Wochenschr 135:739-44. 2010
    ..Since April 1st, 2007 pharmacies have to replace non-rebated by rebated drugs. We aimed to investigate if the prescribing of compounds and substitutions in pharmacies has changed after the introduction of rebate contracts...
  23. ncbi request reprint [Analysis of statutory health insurance data concerning utilization of support surfaces for pressure ulcers]
    Falk Hoffmann
    Universitat Bremen, Institut für Public Health und Pflegeforschung IPP, AG Arzneimittelanwendungsforschung, Ausser der Schleifmühle 35 3, D 28203 Bremen
    Pflege 19:308-13. 2006
    ..Support surfaces are commonly used to prevent and treat pressure ulcers. Up to now little is known about their application in Germany...
  24. ncbi request reprint Prevalence of asthma among German adults: analysis of the German National Telephone Survey
    Falk Hoffmann
    University of Bremen, Drug Utilization Research Unit, Bremen, Germany
    J Asthma 44:433-6. 2007
    ..The purpose of this study was to estimate the prevalence of asthma in German adults...
  25. ncbi request reprint [How often are dates of prescription and dispensing of drugs correct in claims data?]
    F Hoffmann
    Universitat Bremen, BRD
    Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 50:1418-23. 2007
    ..In cases where drug exposure has to be measured accurately, original prescriptions should be viewed. There is further need for clarification on the correctness of variables in claims data...
  26. ncbi request reprint [Incidence of hip fracture in Germany--person-related analysis of health insurance population]
    F Hoffmann
    AG Arzneimittelanwendungsforschung, Institut für Public Health und Pflegeforschung IPP, Universitat Bremen
    Gesundheitswesen 68:161-4. 2006
    ..Up to now incidence data are rare for Germany. The aim of this study is to determine actual person-related age- and sex-specific rates of hip fractures in Germany...
  27. doi request reprint Pattern of intravenous bisphosphonate use in outpatient care in Germany
    Falk Hoffmann
    Health Policy and Outcomes Research, Division Health Economics, Centre for Social Policy Research, University of Bremen, Bremen, Germany
    Pharmacoepidemiol Drug Saf 17:896-903. 2008
    ..The aim of this study was to investigate prevalence as well as duration and cumulative doses of intravenous bisphosphonate treatment...
  28. doi request reprint [Validity of information relevant to research in routine medication claims data from 2000 to 2006]
    F Hoffmann
    Universität Bremen ZeS, AG Arzneimittelanwendungsforschung, Ausser der Schleifmühle 35 37, 28203 Bremen
    Dtsch Med Wochenschr 133:945-9. 2008
    ..However, little is known about the validity of these data. Aim of this study was to analyse whether information relevant for research purposes is accurately recorded in computerized out-patient medication claims data...
  29. doi request reprint [Use of zolpidem and zopiclone on private prescriptions between 1993 and 2007]
    F Hoffmann
    ZeS, Abteilung Gesundheitsökonomie, Gesundheitspolitik und Versorgungsforschung, Universitat Bremen, Ausser der Schleifmühle 35 37, 28203, Bremen
    Nervenarzt 80:578-83. 2009
    ..This may be one reason why physicians prescribe drugs that are associated with abuse and dependence (such as Z drugs) more frequently on private prescriptions...
  30. doi request reprint Review on use of German health insurance medication claims data for epidemiological research
    Falk Hoffmann
    University of Bremen, Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, Bremen, Germany
    Pharmacoepidemiol Drug Saf 18:349-56. 2009
    ..The objective was to evaluate the use of German health insurance claims data on medications over the last 10 years by a review of published studies...
  31. doi request reprint Eight-year prescription trends of memantine and cholinesterase inhibitors among persons 65 years and older in Germany
    Falk Hoffmann
    University of Bremen, Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, Ausser der Schleifmuehle 35 37, Bremen, Germany
    Int Clin Psychopharmacol 25:29-36. 2010
    ..6% in 2000 to 45.8% in 2007. Our study gives first insights into prescribing trends of antidementia drugs in Germany. Further evidence from health services research on dementia care is clearly needed...
  32. pmc The effect of introducing rebate contracts to promote generic drug substitution, on doctors' prescribing practices
    Falk Hoffmann
    Universitat Bremen, ZeS, Abteilung Gesundheitsökonomie, Gesundheitspolitik und Versorgungsforschung Glaeske Pfannkuche, Bremen, Germany
    Dtsch Arztebl Int 106:783-8. 2009
    ..The latter option has existed since 2002. We studied the possible effect of the introduction of rebate contracts on the use of the no-substitution option...
  33. doi request reprint Prescriptions as a proxy for asthma in children: a good choice?
    Falk Hoffmann
    Center for Social Policy Research, University of Bremen, Germany
    Eur J Clin Pharmacol 66:307-13. 2010
    ..Our objective was to critically assess and discuss various aspects of identifying children with asthma using prescription data...
  34. ncbi request reprint [High usage of zolpidem and zopiclone. Cross-sectional study using claims data]
    F Hoffmann
    ZeS, AG Arzneimittelanwendungsforschung, Universitat Bremen, 28203, Bremen
    Nervenarzt 79:67-72. 2008
    ..Case reports indicate dose increase, abuse, and dependence concerning zolpidem and zopiclone (so-called Z-drugs)...
  35. doi request reprint Survival in patients with incident dementia compared with a control group: a five-year follow-up
    Daniela Koller
    Division Health Economics, Health Policy and Outcomes Research, Centre for Social Policy Research, University of Bremen, Bremen, Germany
    Int Psychogeriatr 24:1522-30. 2012
    ..For instance, they are based on prevalent, small, or geographically limited samples or do not include controls. We aimed to study survival after the first diagnosis of dementia compared with a control group...
  36. doi request reprint Prevalence and comorbidities of adolescent depression in Germany. An analysis of Health Insurance Data
    Falk Hoffmann
    Centre for Social Policy Research, University of Bremen, Germany
    Z Kinder Jugendpsychiatr Psychother 40:399-404. 2012
    ..A second objective of was to assess potential regional (East vs. West Germany) differences in depression prevalence...
  37. doi request reprint Prescribing of antipsychotic drugs in patients with dementia: a comparison with age-matched and sex-matched non-demented controls
    Jana Schulze
    Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, University of Bremen, Bremen, Germany
    Pharmacoepidemiol Drug Saf 22:1308-16. 2013
    ..The aim of this study was to assess antipsychotic prescribing in patients with incident dementia compared with a non-demented control group...
  38. doi request reprint Impact of safety warnings on antipsychotic prescriptions in dementia: nothing has changed but the years and the substances
    Jana Schulze
    University of Bremen, Centre for Social Policy Research, Division Health Economics, Health Policy and Outcomes Research, Bremen, Germany Electronic address
    Eur Neuropsychopharmacol 23:1034-42. 2013
    ..5 to 91.2 (2004-2009; p=0.0047). Our findings imply that warnings of international drug authorities and manufacturers against adverse drug events in dementia patients receiving antipsychotics did not impact overall prescription behavior. ..
  39. ncbi request reprint [Pharmacotherapy of common colds in childhood]
    Matthias Pfannkuche
    Universitat Bremen, Zentrum für Sozialpolitik, AG Arzneimittelanwendungsforschung
    Kinderkrankenschwester 26:109-12. 2007
  40. doi request reprint [Comparative evaluation of methods to determine efficiency potentials in drug utilisation]
    M S Pfannkuche
    Universitat Bremen, ZeS, AG Arzneimittelanwendungsforschung, Ausser der Schleifmühle 35 3728203 Bremen
    Gesundheitswesen 69:670-8. 2007
    ..Therefore saving potentials are quantified based on health insurance company claims data. This article is a contribution to methodical discussions about the determination of saving potentials in drug utilisation...
  41. doi request reprint High use of tramadol in Germany: an analysis of statutory health insurance data
    Kathrin Tholen
    Department for Health Economics, Health Policy and Outcome Research, Centre for Social Policy Research, University of Bremen, Bremen, Germany
    Pharmacoepidemiol Drug Saf 21:1013-21. 2012
    ..It is one of the most prescribed analgesic substances in Germany, but tramadol and the step II opioids are very controversially discussed. We analysed patients with filled tramadol prescriptions with special emphasis on high use...
  42. doi request reprint [Validation of secondary data. Strengths and limitations]
    F Hoffmann
    Universitat Bremen, Bremen, BRD
    Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 51:1118-26. 2008
    ..A considerable number of external validation studies of diagnostic coding have been conducted within the GPRD. In contrast, such validation studies of German SHI claims data are mostly lacking and are urgently needed in the near future...
  43. doi request reprint Treatment of multiple sclerosis in Germany: an analysis based on claims data of more than 30,000 patients
    Roland Windt
    Centre for Social Policy Research ZeS, University of Bremen, Mary Somerville Str 3, 28359, Bremen, Germany
    Int J Clin Pharm 35:1229-35. 2013
    ..Multiple sclerosis (MS) is an incurable disease of the central nervous system. In addition to symptomatic treatment, immunomodulatory and immunosuppressant agents are used to prevent attacks and to influence the course of disease...
  44. ncbi request reprint [Drug therapy in the elderly: limiting to the essentials]
    Falk Hoffmann
    Universitat Bremen, Zentrum für Sozialpolitik, AG Arzneimittelanwendungsforschung
    Pflege Z 58:282-6. 2005
  45. pmc Beta-blockers for hypertension
    Falk Hoffmann
    CMAJ 176:971; author reply 971-2. 2007