scholarly journals Etiologic and clinical epidemiological features of hemorrhagic fever with renal syndrome (HFRS) in the Krasnodar Krai

2016 ◽  
Vol 21 (1) ◽  
pp. 22-30
Author(s):  
E. A Tkachenko ◽  
V. G Morozov ◽  
T. K Dzagurova ◽  
Yu. V Yunicheva ◽  
O. M Pilikova ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Clinical Laboratory ◽  
Hemorrhagic Fever ◽  
Epidemiological Data ◽  
Epidemiological Studies ◽  
Elisa Method ◽  
Krasnodar Krai ◽  
Epidemiological Features ◽  
Rural And Urban ◽  
European Part Of Russia

The purpose of the study is the investigation of etiological, clinical and epidemiological features of HFRS, caused by Sochi virus in the Krasnodar area, as well as a comparative analysis of the data with those of HFRS, caused by Kurkino virus in the Central Russian regions and Puumala virus in the areas of Volga region. Materials and methods For the identification of HFRS patients, sera from more than 800 acute febrile patients residing in Krasnodar area were examined for hantavirus antibody by IFA with Puumala, Hantaan, Seoul, Sochi, Kurkino and Dobrava viruses. For primary screening there was used the indirect immunofluorescence (ELISA) method with polyvalent cultural antigen as for serotyping of positive sera according to affiliation of antibodies to various Hantaviruses species, there were used ELISA method with monovalent cultural antigens and the neutralization reaction with Puumala, Hantaan, Seoul, Sochi, Kurkino and Dobrava viruses with the use of the method of Inhibition of Focus-Forming Units assay. Clinical and epidemiological studies have been performed on the base of history cases and records of the epidemiological examination. Results of the study. During 2000 - 2013 there were identified 64 patients suffered from HFRS caused by the Sochi virus. The patients resided in 36 settlements of 10 administrative districts of the Krasnodar area. A comparative analysis of clinical, laboratory and epidemiological data of patients with HFRS-Sochi, HFRS-Kurkino and HFRS-Puumala viruses allowed to reveal differences between the clinical (frequency of registration and severity of several symptoms, severity of the course and mortality rate) and epidemiological (prevalence in rural and urban residents, occupational pattern, the seasonality of the disease, conditions of contamination) manifestations. Conclusion There was established the etiological and epidemiological importance of Sochi virus. Sochi virus causes sporadic annual incidence of HFRS in the territory of Krasnodar area. Cases of HFRS caused by the Sochi virus are differ in more severe course of the disease and high lethality rate in comparison with the other two forms of HFRS caused by Puumala and Kurkino viruses in the territory of the European part of Russia.

A Review of the Literature on Rural Suicide

Crisis ◽  
2006 ◽  
Vol 27 (4) ◽  
pp. 189-199 ◽  
Author(s):  
Jameson K. Hirsch
Keyword(s):  
Rural Communities ◽  
Rural Areas ◽  
Urban Areas ◽  
Epidemiological Data ◽  
Epidemiological Studies ◽  
Health Concern ◽  
Prevention And Intervention ◽  
Rural And Urban ◽  
Urban And Rural Areas ◽  
Suicidal Thoughts And Behaviors

Abstract. Background. Suicide is a major cause of mortality worldwide. Differences in rates of suicide exist between urban and rural areas; however, little rigorous research has examined the phenomena of rural suicide. Objective. This review examines the current body of literature on rural suicide and investigates differences between rural and urban suicide, including socioeconomic, psychological, and cultural variables. Prevention and intervention strategies specific to rural communities are discussed. Description of studies. All empirical and epidemiological studies of rural suicide were included in the review regardless of study design or methodology. Results. Although findings are mixed, research and epidemiological data indicate that suicide is a public health concern in rural areas, with suicide rates often greater than in urban areas. Discussion. Rural locale may create geographic, psychological, and sociocultural barriers to treatment of suicide. A better understanding of the role of rurality in the development and maintenance of suicidal thoughts and behaviors is needed and may inform prevention and intervention efforts.

scholarly journals Basic clinicolaboratory and genetic characteristic of patients with mucoviscidosis living in Perm krai, other regions of Privolzhsky federal district and Central federal district of Russia

2020 ◽  
Vol 37 (1) ◽  
pp. 48-62
Author(s):  
V. V. Shadrina ◽  
E. I. Kondratieva ◽  
E. G. Furman ◽  
E. L. Amelina ◽  
M. A. Starinova ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Federal District ◽  
Epidemiological Data ◽  
Epidemiological Studies ◽  
Central Federal District ◽  
Perm Krai ◽  
Federal Districts ◽  
Chuvash Republic ◽  
And Migration ◽  
Epidemiological Characteristics

Aim. The project National Register of Patients with Mucoviscidosis (MV), introduced in Russia, opened the widest perspectives for comparative analysis and summarizing of clinico-epidemiological data all over Russia, federal districts, regions and separate territories. The register data permit to generalize the experience of observation and management of MV patients in centers. Comparative analysis of the clinico-epidemiological characteristics of MV and volume of therapy in patients living in Perm Krai (PK) with the other regions of Privolzhsky Federal District (PFD) and Central Federal District (CFD) of Russia was carried out. Materials and methods. According to the Register of MV Patients in the Russian Federation for 2017, the data of 1576 patients with MV were analyzed: 930 (59.0 %) patients were observed in CFD, 600 (38.1 %) in PFD, 46 (2.9) in PK. Results. Among MV patients in PFD and PK, there was noted a great variety of variants of the gene CFTR, associated with both the presence of autochthonic and relatively closed ethnic groups and migration of the population. A high allele frequency of the variant E92K was revealed in patients of Chuvash Republic (55.3 %). A group of patients from PK, registered in 2017, had a low mean age, the lowest age of making a diagnosis. Conclusions. Clinico-epidemiological studies, according to the data of MV patients register, permitted to detect some peculiar features that can be significant for practical healthcare. Further studies on MV patients register should be continued.

New Insight for the Prognosis of CCHF: Clinical, Laboratory and Sonography Findings

2020 ◽  
Vol 16 (9) ◽  
pp. 1125-1130
Author(s):  
Hamid Owaysee Osquee ◽  
Sepehr Taghizadeh ◽  
Mehdi Haghdoost ◽  
Hadi Pourjafar ◽  
Fereshteh Ansari
Keyword(s):  
Odds Ratio ◽  
Clinical Laboratory ◽  
Fatal Outcome ◽  
Hemorrhagic Fever ◽  
Demographic Characteristics ◽  
Pelvic Cavity ◽  
Fatal Disease ◽  
Laboratory Findings ◽  
Report Data ◽  
Sistan And Baluchestan

Introduction: In this article, we report data on confirmed CCHF cases from Iran and describe the association between studying factors and outcomes of the disease. Objective: Crimean Congo Hemorrhagic Fever (CCHF) is an acute and fatal disease with various clinical and paraclinical characteristics. Methods: In the Study design, we evaluated demographic characteristics, clinical, laboratory and sonographic findings of 160 CCHF confirmed cases during 2003 and 2012 in Zabol (A city in Sistan and Baluchestan province of Iran). The association between these factors and the fatal outcome was evaluated by regression analysis. Results: The disease had a fatal outcome in 7 (4.4%) of patients. Females had more severe symptoms and higher odds for death (odds ratio11.57, p=0.005). Leukocytosis (p<0.001), PT (p<0.001) and PTT (p=0.008) elongation, AST (p=0.010) and ALT (p<0.001) elevation were significantly associated with fatal outcome. CNS related symptoms (odds ratio 5.9, p=0.027) in clinical examination and ascites (odds ratio 38.4, p=0.012) and liquid in the pelvic cavity (odds ratio 24.2, p=0.004) were also identified as risk factors of death in this study. Conclusions: Our data suggest that in addition to clinical and laboratory findings practitioners consider sonography for CCHF prognosis.

scholarly journals Methods for epidemiological studies in competitive cycling: an extension of the IOC consensus statement on methods for recording and reporting of epidemiological data on injury and illness in sport 2020

2021 ◽  
pp. bjsports-2020-103906
Author(s):  
Benjamin Clarsen ◽  
Babette M Pluim ◽  
Víctor Moreno-Pérez ◽  
Xavier Bigard ◽  
Cheri Blauwet ◽  
...  
Keyword(s):  
Consensus Statement ◽  
Expert Panel ◽  
Epidemiological Data ◽  
Epidemiological Studies ◽  
Population Characteristics ◽  
Exposure Study ◽  
Injury Mechanisms ◽  
Study Population ◽  
Final Manuscript ◽  
Collection Methods

In 2020, the IOC released a consensus statement that provides overall guidelines for the recording and reporting of epidemiological data on injury and illness in sport. Some aspects of this statement need to be further specified on a sport-by-sport basis. To extend the IOC consensus statement on methods for recording and reporting of epidemiological data on injury and illness in sports and to meet the sport-specific requirements of all cycling disciplines regulated by the Union Cycliste Internationale (UCI). A panel of 20 experts, all with experience in cycling or cycling medicine, participated in the drafting of this cycling-specific extension of the IOC consensus statement. In preparation, panel members were sent the IOC consensus statement, the first draft of this manuscript and a list of topics to be discussed. The expert panel met in July 2020 for a 1-day video conference to discuss the manuscript and specific topics. The final manuscript was developed in an iterative process involving all panel members. This paper extends the IOC consensus statement to provide cycling-specific recommendations on health problem definitions, mode of onset, injury mechanisms and circumstances, diagnosis classifications, exposure, study population characteristics and data collection methods. Recommendations apply to all UCI cycling disciplines, for both able-bodied cyclists and para-cyclists. The recommendations presented in this consensus statement will improve the consistency and accuracy of future epidemiological studies of injury and illness in cycling.

scholarly journals Genetic Contribution of Endometriosis to the Risk of Developing Hormone-Related Cancers

2021 ◽  
Vol 22 (11) ◽  
pp. 6083
Author(s):  
Aintzane Rueda-Martínez ◽  
Aiara Garitazelaia ◽  
Ariadna Cilleros-Portet ◽  
Sergi Marí ◽  
Rebeca Arauzo ◽  
...  
Keyword(s):  
Mendelian Randomization ◽  
Clear Cell ◽  
Association Studies ◽  
Epidemiological Data ◽  
Epidemiological Studies ◽  
Genome Wide Association Studies ◽  
Genome Wide ◽  
Genomic Analyses ◽  
Gynecological Disorder ◽  
Robust Evidence

Endometriosis is a common gynecological disorder that has been associated with endometrial, breast and epithelial ovarian cancers in epidemiological studies. Since complex diseases are a result of multiple environmental and genetic factors, we hypothesized that the biological mechanism underlying their comorbidity might be explained, at least in part, by shared genetics. To assess their potential genetic relationship, we performed a two-sample mendelian randomization (2SMR) analysis on results from public genome-wide association studies (GWAS). This analysis confirmed previously reported genetic pleiotropy between endometriosis and endometrial cancer. We present robust evidence supporting a causal genetic association between endometriosis and ovarian cancer, particularly with the clear cell and endometrioid subtypes. Our study also identified genetic variants that could explain those associations, opening the door to further functional experiments. Overall, this work demonstrates the value of genomic analyses to support epidemiological data, and to identify targets of relevance in multiple disorders.

scholarly journals High susceptibility to varicella among urban and rural pregnant women in South India: a brief report

2021 ◽  
Vol 149 ◽  
Author(s):  
Leeberk Raja Inbaraj ◽  
Sindhulina Chandrasingh ◽  
Nalini Arun Kumar ◽  
Jothi Suchitra ◽  
Abi Manesh
Keyword(s):  
Pregnant Women ◽  
South India ◽  
Significant Proportion ◽  
Prevalence Ratio ◽  
Epidemiological Studies ◽  
Lethal Outcome ◽  
Factors Associated ◽  
Rural And Urban ◽  
History Of ◽  
Secondary Hospital

Abstract Varicella infection during pregnancy has serious and/or difficult implications and in some cases lethal outcome. Though epidemiological studies in developing countries reveal that a significant proportion of patients may remain susceptible during pregnancy, such an estimate of susceptible women is not known in India. We designed this study to study the prevalence and factors associated with susceptibility to varicella among rural and urban pregnant women in South India. We prospectively recruited 430 pregnant women and analysed their serum varicella IgG antibodies as surrogates for protection. We estimated seroprevalence, the validity of self-reported history of chickenpox and factors associated with varicella susceptibility. We found 23 (95% CI 19.1–27.3) of women were susceptible. Nearly a quarter (22.2%) of the susceptible women had a history of exposure to chickenpox anytime in the past or during the current pregnancy. Self-reported history of varicella had a positive predictive value of 82.4%. Negative history of chickenpox (adjusted prevalence ratio (PR) 1.85, 95% CI 1.15–3.0) and receiving antenatal care from a rural secondary hospital (adjusted PR 4.08, 95% CI 2.1–7.65) were significantly associated with susceptibility. We conclude that high varicella susceptibility rates during pregnancy were noted and self-reported history of varicella may not be a reliable surrogate for protection.

scholarly journals A deep cascaded segmentation of obstructive sleep apnea-relevant organs from sagittal spine MRI

2021 ◽  
Vol 16 (4) ◽  
pp. 579-588
Author(s):  
Tatyana Ivanovska ◽  
Amro Daboul ◽  
Oleksandr Kalentev ◽  
Norbert Hosten ◽  
Reiner Biffar ◽  
...  
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Soft Palate ◽  
High Speed ◽  
Sleep Apnea Syndrome ◽  
Epidemiological Data ◽  
Epidemiological Studies ◽  
Obstructive Sleep ◽  
Validation Set ◽  
Spine Mri

Abstract Purpose The main purpose of this work was to develop an efficient approach for segmentation of structures that are relevant for diagnosis and treatment of obstructive sleep apnea syndrome (OSAS), namely pharynx, tongue, and soft palate, from mid-sagittal magnetic resonance imaging (MR) data. This framework will be applied to big data acquired within an on-going epidemiological study from a general population. Methods A deep cascaded framework for subsequent segmentation of pharynx, tongue, and soft palate is presented. The pharyngeal structure was segmented first, since the airway was clearly visible in the T1-weighted sequence. Thereafter, it was used as an anatomical landmark for tongue location. Finally, the soft palate region was extracted using segmented tongue and pharynx structures and used as input for a deep network. In each segmentation step, a UNet-like architecture was applied. Results The result assessment was performed qualitatively by comparing the region boundaries obtained from the expert to the framework results and quantitatively using the standard Dice coefficient metric. Additionally, cross-validation was applied to ensure that the framework performance did not depend on the specific selection of the validation set. The average Dice coefficients on the test set were $$0.89\pm 0.03$$ 0.89 ± 0.03 , $$0.87\pm 0.02$$ 0.87 ± 0.02 , and $$0.79\pm 0.08$$ 0.79 ± 0.08 for tongue, pharynx, and soft palate tissues, respectively. The results were similar to other approaches and consistent with expert readings. Conclusion Due to high speed and efficiency, the framework will be applied for big epidemiological data with thousands of participants acquired within the Study of Health in Pomerania as well as other epidemiological studies to provide information on the anatomical structures and aspects that constitute important risk factors to the OSAS development.

scholarly journals The Effect of Random Error in Exposure Measurement upon the Shape of the Exposure Response

Dose-Response ◽  
2005 ◽  
Vol 3 (4) ◽  
pp. dose-response.0 ◽  
Author(s):  
Kenny S. Crump
Keyword(s):  
Measurement Error ◽  
Measurement Errors ◽  
Epidemiological Data ◽  
Epidemiological Studies ◽  
Random Errors ◽  
Exposure Measurement ◽  
Considerable Uncertainty ◽  
Exposure Response ◽  
Log Normal ◽  
Normally Distributed

Although statistical analyses of epidemiological data usually treat the exposure variable as being known without error, estimated exposures in epidemiological studies often involve considerable uncertainty. This paper investigates the theoretical effect of random errors in exposure measurement upon the observed shape of the exposure response. The model utilized assumes that true exposures are log-normally distributed, and multiplicative measurement errors are also log-normally distributed and independent of the true exposures. Under these conditions it is shown that whenever the true exposure response is proportional to exposure to a power r, the observed exposure response is proportional to exposure to a power K, where K < r. This implies that the observed exposure response exaggerates risk, and by arbitrarily large amounts, at sufficiently small exposures. It also follows that a truly linear exposure response will appear to be supra-linear—i.e., a linear function of exposure raised to the K-th power, where K is less than 1.0. These conclusions hold generally under the stated log-normal assumptions whenever there is any amount of measurement error, including, in particular, when the measurement error is unbiased either in the natural or log scales. Equations are provided that express the observed exposure response in terms of the parameters of the underlying log-normal distribution. A limited investigation suggests that these conclusions do not depend upon the log-normal assumptions, but hold more widely. Because of this problem, in addition to other problems in exposure measurement, shapes of exposure responses derived empirically from epidemiological data should be treated very cautiously. In particular, one should be cautious in concluding that the true exposure response is supra-linear on the basis of an observed supra-linear form.

Patterns, determinants, and outcomes of antenatal care services utilization among rural and urban women in north-western Nigeria: A comparative analysis

2021 ◽  
Vol 26 (3) ◽  
pp. 147
Author(s):  
VictoriaNanben Omole ◽  
SamuelAmos Bayero ◽  
MohammedJimoh Ibrahim ◽  
NafisatOhunene Usman ◽  
Onyemocho Audu ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Antenatal Care ◽  
Urban Women ◽  
Services Utilization ◽  
Care Services ◽  
Rural And Urban ◽  
North Western
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