View clinical trials related to Epidemiology.
Filter by:MaHeVi is a multicenter, cross-sectional, population-based study which will include 2500 adults in the health care centers / missions located on the 2 sides of the Maroni River. All major inhabitants of the river border between French Guiana and Suriname may participate, after an extensive communication campaign.The main objective is to estimate the prevalence and status of infection with hepatitis B (HBV), hepatitis C (HCV), D (VHD) and HIV in the general adult population of the Maroni River, border between French Guiana and Suriname. After signing the informed consent and pre-test counseling, capillary blood will be collected on blotting paper. Participants will be interviewed on infection risk factors. Positivity for HBsAg, total anti-HBcAb, anti-HCV Ab, total anti-HDV Ab(for HBsAg positive) and HIV p24 Ag or anti-HIV Ab (confirmed by molecular biology for hepatitis and Western Blot for HIV) will inform respectively on the HBV, HCV, HDV and HIV infection status.
Extracorporeal lung oxygenation (ECMO) was first used in neonates in the 1970s and is now widely used to treat adult patients with intractable shock and respiratory failure who have failed various types of conventional life support. According to the Extracorporeal Life Support Organization (ELSO), a total of 61,193 adult patients worldwide received ECMO in 2019. According to the Extracorporeal Life Support Organization (ELSO), a total of 61,193 adult patients were treated with ECMO worldwide in 2019, including 25,631 VV-ECOM, 12,836 VA, and 5086 ECPR. The number of ECMO cases and hospitals in Zhejiang province are increasing year by year, and they play an irreplaceable role in various critical care resuscitation, especially in response to public emergencies, but there is a lack of precise data on the current status of ECMO implementation. This study aims to investigate the implementation of ECMO, problems and needs of hospitals at all levels in Zhejiang Province, and provide reference for further improving the capacity and quality of ECMO application in the province.
Coronary artery calcification (CAC) is a common complication of type 2 diabetes mellitus(T2DM), which can significantly increase all-cause mortality and the incidence of serious cardiovascular events, and increase the burden of the national economy. The epidemiological characteristics and the clinical progress of CAC are still not clear. Moreover, the pathogenesis of CAC has not yet been fully elucidated, and lack of specific diagnostic indicators. Arterial calcification is an active, reversible, and multifactorial biological process like bone formation. It is generally believed that early detection of calcification lesions and active targeted treatment may be the key to prevention and treatment of vascular calcification. In addition, statins are commonly used in patients with dyslipidemia and can stabilize CAC plaque. However, the timing, dosage and effect of statins are controversial. Moreover, our previous study found that the expression of miR-32 is significantly elevated in patients with CAC, and can promoting vascular calcification. Herein, this study is to conduct a prospective cohort study on T2DM patients with CAC in Hunan province through a multidisciplinary and multi-center cooperation model, the main research objectives include the following three parts: ① To identify the prevalence, incidence, and characteristics of CAC in T2DM patients in Hunan province, and to build a risk assessment model. ② To observe the effects of statins on the occurrence and development of CAC in patients with T2DM, and to provide clinical data for the improvement of medication guidelines; ③To observe the dynamic changes of serum miR-32 in the progression of CAC in patients with T2DM, and to explore its possibility as a serological diagnosis or prognostic bio-maker of CAC. The completion of this research project is expected to bring a new breakthrough in the field of early diagnosis, prognosis evaluation, and intervention treatment of patients with T2DM combined with CAC, and provide an important reference for the formulation of cardiovascular disease prevention and control strategy.
The trajectory of atrial fibrillation (AF) patients within the national health system and their recent temporal trends remains to be fully elucidated. To study the AF incidence, mortality and case-fatality, the investigators implemented a longitudinal cohort study with the linked electronic health records of 5.6 million population in the UK from 1998 to 2016 (CALIBER). A matched case-control study design was used to investigate the causes of hospitalization and death comparing individuals with and without incident AF.
Background: Stroke is a leading cause of long-term disability in the US. Mild stroke comprises half of stroke hospital admissions, but most people with mild stroke receive no rehabilitation services. Mild stroke is often the manifestation of uncontrolled chronic conditions (e.g. hypertension, diabetes), and people with mild stroke also experience ongoing chronic symptoms (e.g. depression, fatigue) that may impact their daily activities. An inability to manage chronic conditions and symptoms may lead to decreased participation in pre-stroke roles and activities, which may increase the chance of sustaining a second stroke. An effective intervention to manage chronic conditions and support participation is self-management. A meta-review of 13 systematic reviews demonstrated that self-management interventions significantly improve stroke survivors' daily activities, independence, and mortality. National research agendas from the Department of Health and Human Services (HHS) and Institute of Medicine (IOM) include self-management as one key goal of a strategic framework, aligning with the AOTF Research Priorities, for promoting (1) health behaviors to prevent and manage chronic conditions. Our preliminary studies indicate that mobile health (mHealth), defined as the delivery of healthcare services via mobile devices, can be used to precisely monitor participation in daily activities and mood and is acceptable in stroke survivors. Our meta-analysis indicates that digital self-management interventions are more effective in improving depression, fatigue, anxiety, and self-efficacy in people with neurologic disorders in comparison to non-digital self-management interventions. These studies support the AOTF Research Priorities that include (2) use of technology to support home and community activities, and (3) emotional influences. Objectives: The investigators will harness mHealth technology for a self-management program. Our intervention is a mobile phone intervention called iOTA, which builds on extensive work by my mHealth mentor and colleagues in health behavior research. The investigators will use a formal implementation science framework to adapt and test the iOTA intervention. The investigators will cohere an adaptation framework by soliciting stakeholder input to adapt the iOTA from Improving Participation after Stroke Self-Management (IPASS), an evidence-based intervention that targets self-management of chronic conditions and increased community participation in stroke survivors. Methods: The investigators will use a two-step approach, including a rigorous treatment adaptation and a Phase I feasibility trial. Our first step is to adapt the intervention with input from all relevant stakeholder levels. Our second step is to use a pre-post, non-randomized study design to test the adapted iOTA. Ten community-dwelling people with mild stroke will participate in the iOTA for 3 months. The iOTA incorporates daily short message service (SMS) text messages to supplement monthly in-person health coaching and weekly videoconference sessions. The investigators will include an occupational therapist (OT) as a health coach to teach individuals to incorporate self-management strategies into their daily routines to support participation in meaningful activities. Expected Outcome: This mHealth treatment development study will increase the reach and access of IPASS-a patient-centered, participation-focused self-management program for stroke survivors. The iOTA created will not only maximize our potential for the future randomized controlled trial (RCT) but also lay the groundwork for future funding mechanisms.
The aim of the study will be to determine the epidemiological and clinical features of COVID-19 cases, immunological and virological courses, interaction with nutritional status, and response to treatment for COVID-19 patients admitted to treatment centers in Ethiopia. Methods: This multi-site cohort enrolls, patients with confirmed COVID-19 infection admitted to treatment centers will be enrolled irrespective of their symptoms and followed up for 12 months. Baseline epidemiological, clinical, laboratory and imaging data will be collected from treatment records, interviews, physical measurements and biological samples. Endline data involves treatment and prognostic outcomes to be measured using different biomarkers and clinical parameters, The patients will be followed up in the selected treatment centers for COVID-19 infection. For all data collected both descriptive and multivariable analyses will be performed to isolated determinants of the treatment outcome and prognosis to generate relevant information for informed prevention and case management.
Hearing loss can be the result of chronic ear infections. The role of bacteria of the genus Achromobacter is not known in these conditions. An epidemiological study including a large number of patients is needed to compare the prevalence of these bacteria in sick and healthy subjects, and to highlight the characteristics of the strains and the factors favouring their emergence.
Since the outbreak of a syndrome of acute respiratory distress associated to a novel coronavirus 2 (SARS-Cov2) that began in China, Europe and France have to face a sanitary emergency with critically care support when the patient evolves to an acute respiratory distress (ARDS). In the context of supply shortages (ventilators, bed capacities) that countries have to deal with, data were lacking of characteristics and outcomes of patients admitted to intensive care unit (ICU). the purpose of this project is to report the epidemiology and the outcomes of a French cohort of critically ill patients with SARS-Cov2
How is the epidemiology of mechanically ventilated patients in the intensive care units of Argentina?
Both abdominal aortic aneurysm (AAA) and carotid artery stenosis (CAS) are frequent clinical entities, with major morbidity and mortality. This project obtains robust data on the prevalence of AAA and CAS in the Brussels Capital Region. Using duplex ultrasound, a low invasive examination, we want to obtain information on a vast sample of men and women of the Brussels capital region, starting at the age of 60. With these data we can have a far better view on the Belgian situation of these two main vascular clinical entities. The data can provide insights on if, and how, Belgian public health policy can be improved concerning AAA and CAS.