Studies of the descriptive epidemiology of RA indicate a population prevalence of 0.5% to 1% and a highly variable annual incidence (12-1200 per 100,000 population) depending on gender, race/ethnicity, and calendar year. Secular trends in RA incidence over time have been shown in several studies, supporting the hypothesis of a host-environment interaction. People with RA have a significantly in...

We analyze bibliometric trends of topics relevant to the epidemiologic research of social determinants of health. A search of the PubMed database, covering the period 1985-2007, was performed for the topics: socioeconomic factors, sex, race/ethnicity, discrimination/prejudice, social capital/support, lifecourse, income inequality, stress, behavioral research, contextual effects, residential seg...

The likelihood of an epidemiologic study correctly identifying an adverse health outcome associated with exposure to indoor air pollutants is increased if a) substantial variation exists in the frequency or level of exposure among study subjects otherwise at similar risk of the health outcome; b) the number of study subjects or study communities is large; c) the health outcome can be assessed w...

Molecular biology techniques have become increasingly integrated into the practice of infectious disease epidemiology. The term "molecular epidemiology" routinely appears in the titles of articles that use molecular strain-typing ("fingerprinting") techniques-regardless of whether there is any epidemiologic application. What distinguishes molecular epidemiology is both the "molecular," the use ...

background elimination of suicide attempts is impossible, but they can be reduced dramatically by an organized planning. the present study aimed to survey the suicide trends in fars province (iran), during 2004-2009 to better understand the prevalence and status of suicide.   methods this survey was a cross-sectional study. the demographic data were collected from the civil status registry betw...

OBJECTIVE To characterize the epidemiologic burden and the molecular determinants of group A streptococcal (GAS) meningitis among the pediatric population of the state of Paraná, Brazil. METHODS Clinical and epidemiologic data were gathered by a compulsory notification system during the period 2003 to 2011. Bacterial identification, antibiotic resistance profile, emm-typing, pulsed-field gel ...

Over the past decade, leading epidemiologists have noted the importance of social factors in studying and understanding the distribution and determinants of disease in human populations; but to what extent are epidemiologic studies integrating genetic information and other biologic variables with information about individual-level risk factors and group-level or societal factors related to the ...

background and purpose: prematurity birth occurs when a newborn is born before the thirty seventh week of pregnancy. preterm birth is the most expensive and the most common health problem. so, the aim of this study was to do epidemiological survey of prematurity in gonbad-e kavous in 2010. materials and methods: this sectional- descriptive study was carried out on 172 premature babies with cens...