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Oliver Razum

Bio: Oliver Razum is an academic researcher from Bielefeld University. The author has contributed to research in topics: Public health & Population. The author has an hindex of 40, co-authored 464 publications receiving 7021 citations. Previous affiliations of Oliver Razum include University Hospital Heidelberg & Heidelberg University.


Papers
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Journal ArticleDOI
TL;DR: To test the hypothesis that as a minority with lower socio‐economic status, Turkish residents in Germany might experience a higher mortality than Germans, a large number of them are thought to be Turkish citizens.
Abstract: Summaryobjective To test the hypothesis that as a minority with lower socio-economic status, Turkish residents in Germany might experience a higher mortality than Germans. methods All-cause mortality rates by age group and sex of Turkish and German adults for the time period 1980–94 were calculated from death registry data and mid-year population estimates. results The age-adjusted mortality rate (per 100000) of Turkish males aged 25–65 years resident in Germany was 299 in 1980 and 247 in 1990, consistently half that of German males. The mortality of Turkish females in Germany was 140 in 1990, half that of German females. Mortality of Turkish males/females in Ankara was 835 and 426 in 1990. conclusion In view of the socio-economic status of Turkish residents in Germany the large mortality difference compared to Germans is unexpected. It cannot be fully explained by a selection at the time of hiring (healthy migrant effect) because it lasts over decades and extends into the second generation. A healthy worker effect is unlikely because Turkish residents have a lower employment rate than Germans. There is little evidence for movement of gravely ill persons back to Turkey. An ‘unhealthy re-migration effect’ in which socially successful migrants with a lower mortality risk stay in the host country while less successful ones return home even before becoming manifestly ill would partly explain our findings.

264 citations

Journal ArticleDOI
TL;DR: This work discusses approaches to the definition of terms and the surveying of ethnic minorities and migrants, and develops a basic set of migration status indicators for use in epidemiological research.
Abstract: Nach wie vor fehlt eine Datenbasis, die Migranten und ihre gesundheitliche Situation angemessen reprasentiert. Einer der Grunde fur diesen Mangel ist die unzulangliche Erfassung des Migrationsstatus in der amtlichen Statistik und in epidemiologischen Studien. Voraussetzung fur eine adaquate und standardisierte Operationalisierung ist eine genaue Definition der Begriffe „Migrant“ und „Migrationshintergrund“. In unserem Beitrag diskutieren wir Konzepte zur begrifflichen Bestimmung und Erfassung ethnischer Minderheiten und Migranten und entwickeln auf dieser Grundlage einen Mindestindikatorensatz fur die epidemiologische Forschung. Der vorgeschlagene Mindestindikatorensatz zur Erfassung des Migrationsstatus enthalt die Merkmale Geburtsland von Vater und Mutter, Einreisejahr, Muttersprache, Deutschkenntnisse sowie den Aufenthaltsstatus. Zentraler Indikator zur Identifikation von Migranten ist das Geburtsland der Eltern und nicht – wie bislang zumeist ublich – die Staatsangehorigkeit. Die Klassifikation mittels der juristischen Kategorie Staatsangehorigkeit wird damit abgelost durch die Klassifikation anhand des lebensbiographischen Ereignisses „Migration“. Mit der Migration gehen spezifische Lebensbedingungen und Handlungsanforderungen einher, die uber mehrere Generationen fur die Gesundheit von Bedeutung sein konnen. Ein Instrument zur Erfassung des Migrationsstatus muss dahingehend weiterentwickelt werden, dass es diese aus dem Migrationsereignis resultierenden Besonderheiten in der Lebenssituation widerspiegelt und moglichst alle Aspekte eines Migrationshintergrundes berucksichtigt.

225 citations

Journal ArticleDOI
TL;DR: An extended approach to understand migrant health comprising a life course epidemiology perspective is discussed, which enables the consideration of risk factors and disease outcomes over the different life phases of migrants, which is necessary to understand the health situation of migrants and their offspring.
Abstract: Empirical findings show that morbidity and mortality risks of migrants can differ considerably from those of populations in the host countries However, while several explanatory models have been developed, most migrant studies still do not consider explicitly the situation of migrants before migration Here, we discuss an extended approach to understand migrant health comprising a life course epidemiology perspective The incorporation of a life course perspective into a conceptual framework of migrant health enables the consideration of risk factors and disease outcomes over the different life phases of migrants, which is necessary to understand the health situation of migrants and their offspring Comparison populations need to be carefully selected depending on the study questions under consideration within the life course framework Migrant health research will benefit from an approach using a life course perspective A critique of the theoretical foundations of migrant health research is essential for further developing both the theoretical framework of migrant health and related empirical studies

210 citations


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01 Jan 2016
TL;DR: The using multivariate statistics is universally compatible with any devices to read, allowing you to get the most less latency time to download any of the authors' books like this one.
Abstract: Thank you for downloading using multivariate statistics. As you may know, people have look hundreds times for their favorite novels like this using multivariate statistics, but end up in infectious downloads. Rather than reading a good book with a cup of tea in the afternoon, instead they juggled with some harmful bugs inside their laptop. using multivariate statistics is available in our digital library an online access to it is set as public so you can download it instantly. Our books collection saves in multiple locations, allowing you to get the most less latency time to download any of our books like this one. Merely said, the using multivariate statistics is universally compatible with any devices to read.

14,604 citations

Journal ArticleDOI
21 Jul 1979-BMJ
TL;DR: It is suggested that if assessment of overdoses were left to house doctors there would be an increase in admissions to psychiatric units, outpatients, and referrals to social services, but for house doctors to assess overdoses would provide no economy for the psychiatric or social services.
Abstract: admission. This proportion could already be greater in some parts of the country and may increase if referrals of cases of self-poisoning increase faster than the facilities for their assessment and management. The provision of social work and psychiatric expertise in casualty departments may be one means of preventing unnecessary medical admissions without risk to the patients. Dr Blake's and Dr Bramble's figures do not demonstrate, however, that any advantage would attach to medical teams taking over assessment from psychiatrists except that, by implication, assessments would be completed sooner by staff working on the ward full time. What the figures actually suggest is that if assessment of overdoses were left to house doctors there would be an increase in admissions to psychiatric units (by 19°U), outpatients (by 5O°'), and referrals to social services (by 140o). So for house doctors to assess overdoses would provide no economy for the psychiatric or social services. The study does not tell us what the consequences would have been for the six patients who the psychiatrists would have admitted but to whom the house doctors would have offered outpatient appointments. E J SALTER

4,497 citations

01 Jan 2020
TL;DR: Prolonged viral shedding provides the rationale for a strategy of isolation of infected patients and optimal antiviral interventions in the future.
Abstract: Summary Background Since December, 2019, Wuhan, China, has experienced an outbreak of coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Epidemiological and clinical characteristics of patients with COVID-19 have been reported but risk factors for mortality and a detailed clinical course of illness, including viral shedding, have not been well described. Methods In this retrospective, multicentre cohort study, we included all adult inpatients (≥18 years old) with laboratory-confirmed COVID-19 from Jinyintan Hospital and Wuhan Pulmonary Hospital (Wuhan, China) who had been discharged or had died by Jan 31, 2020. Demographic, clinical, treatment, and laboratory data, including serial samples for viral RNA detection, were extracted from electronic medical records and compared between survivors and non-survivors. We used univariable and multivariable logistic regression methods to explore the risk factors associated with in-hospital death. Findings 191 patients (135 from Jinyintan Hospital and 56 from Wuhan Pulmonary Hospital) were included in this study, of whom 137 were discharged and 54 died in hospital. 91 (48%) patients had a comorbidity, with hypertension being the most common (58 [30%] patients), followed by diabetes (36 [19%] patients) and coronary heart disease (15 [8%] patients). Multivariable regression showed increasing odds of in-hospital death associated with older age (odds ratio 1·10, 95% CI 1·03–1·17, per year increase; p=0·0043), higher Sequential Organ Failure Assessment (SOFA) score (5·65, 2·61–12·23; p Interpretation The potential risk factors of older age, high SOFA score, and d-dimer greater than 1 μg/mL could help clinicians to identify patients with poor prognosis at an early stage. Prolonged viral shedding provides the rationale for a strategy of isolation of infected patients and optimal antiviral interventions in the future. Funding Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences; National Science Grant for Distinguished Young Scholars; National Key Research and Development Program of China; The Beijing Science and Technology Project; and Major Projects of National Science and Technology on New Drug Creation and Development.

4,408 citations

Book
01 Jan 2002
TL;DR: This chapter discusses the construction of Inquiry, the science of inquiry, and the role of data in the design of research.
Abstract: Part I: AN INTRODUCTION TO INQUIRY. 1. Human Inquiry and Science. 2. Paradigms, Theory, and Research. 3. The Ethics and Politics of Social Research. Part II: THE STRUCTURING OF INQUIRY: QUANTITATIVE AND QUALITATIVE. 4. Research Design. 5. Conceptualization, Operationalization, and Measurement. 6. Indexes, Scales, and Typologies. 7. The Logic of Sampling. Part III: MODES OF OBSERVATION: QUANTITATIVE AND QUALITATIVE. 8. Experiments. 9. Survey Research. 10. Qualitative Field Research. 11. Unobtrusive Research. 12. Evaluation Research. Part IV: ANALYSIS OF DATA:QUANTITATIVE AND QUALITATIVE . 13. Qualitative Data Analysis. 14. Quantitative Data Analysis. 15. Reading and Writing Social Research. Appendix A. Using the Library. Appendix B. Random Numbers. Appendix C. Distribution of Chi Square. Appendix D. Normal Curve Areas. Appendix E. Estimated Sampling Error.

2,884 citations

Book
01 Jan 2015
TL;DR: Fawcett, M.K.Halliday, Sydney M. Lamb and Adam Makkai as discussed by the authors presented a systemic-functional interpretation of the nature and ontogenesis of dialogue.
Abstract: List of Figures List of Tables Foreword Introduction Robin P. Fawcett, M.A.K. Halliday, Sydney M. Lamb and Adam Makkai 1 Language as Code and Language as Behaviour: A Systemic-Functional Interpretation of the Nature and Ontogenesis of Dialogue M.A.K. Halliday 2 Metaphors of Information John Regan 3 How Universal is a Localist Hypothesis? A Linguistic Contribution to the Study of 'Semantic Styles' of Language Yoshihiko Ikegami 4 Some Speculations on Language Contact in a Wider Setting Jeffrey Ellis 5 Ways of Saying: Ways of Meaning Ruqaiya Hasan Index

2,087 citations