نتایج جستجو برای: reliability epidemiology
تعداد نتایج: 246884 فیلتر نتایج به سال:
To combat disease outbreaks, public health officials often use painstaking fieldwork to try to stay one step ahead of the infectious bugs, linking patients’ symptoms to a source of infection to quickly identify the common culprit in related cases. Now, a new field called genomic epidemiology is taking advantage of the rapidly reduced costs of next-generation DNA sequencing to better inform publ...
Introduction: Lifestyle is important in doing healthy behaviors by students as an important part of a community has important role. Measurement tools that are used to determine the achivment of research’s goals in each study need to be evaluated. The aim of this study was to determine the validity and reliability of a healthy lifestyle measurement scale for high school students based on the t...
Background and Objectives: Medical journals are those journals which their articles present new research findings and science and technology development in the diverse fields of medical sciences. Due to the need of recognition of the scienctific journals in the health domain, the aim of the present article was to introduce and review the epidemiological journals. Materials and Methods: This ...
PROBLEM The Pacific region has widely dispersed populations, limited financial and human resources and a high burden of disease. There is an urgent need to improve the availability, reliability and timeliness of useable health data. CONTEXT The purpose of this paper is to share lessons learnt from a three-year pilot field epidemiology training programme that was designed to respond to these P...
Attenuation of the exposure-response relationship due to exposure measurement error is often encountered in epidemiology. Given that error cannot be totally eliminated, bias correction methods of analysis are needed. Many methods require more than one exposure measurement per person to be made, but the `group mean OLS method,' in which subjects are grouped into several a priori defined groups f...
Minimum spanning trees (MSTs) are frequently used in molecular epidemiology research to estimate relationships among individual strains or isolates. Nevertheless, there are significant caveats to MST algorithms that have been largely ignored in molecular epidemiology studies and that have the potential to confound or alter the interpretation of the results of those analyses. Specifically, (i) p...
The epidemiology and clinical presentations of giardiasis are reviewed to provide a basis of understanding the laboratory aspects of this parasitic infection. Diagnosis is then discussed in light of recent studies that challenge our overall approach to the diagnosis of enteric parasites and demonstrate the need for further evaluation on the basis of cost-effectiveness as well as reliability and...
Whether preemptive therapy or universal prophylaxis with ganciclovir is the optimal approach against cytomegalovirus (CMV) remains unresolved. Controversy abounds with respect to the efficacy of preemptive therapy, the reliability of preemptive therapy tools, the logistical difficulties in conducting surveillance monitoring for CMV, the cost of prophylaxis, the effect of prophylaxis on indirect...
One of the main problems in nutritional epidemiology is to assess food intake as well as nutrient/food component intake to a high level of validity and reliability. To help in this process, the need to have good biomarkers that more objectively allow us to evaluate the diet consumed in a more standardized, valid and precise way has often been commented upon. There are various definitions of bio...
Tuberculosis (TB) remains a global health emergency. Ongoing challenges include the coordination of national and international control programs, high levels of drug resistance in many parts of the world, and availability of accurate and rapid diagnostic tests. The increasing availability and reliability of Internet access throughout both affluent and resource-limited countries brings new opport...
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