background: helicobacter pylori ( h. pylori ) is a global pathogen with a widely varied prevalence (30%-80%) among different countries and populations. this study aims to determine the prevalence of h. pylori in the population of arak, iran. materials and methods: this was an epidemiologic cross-sectional population-based study with multistage sampling. the population of arak according to the 2...

OBJECTIVES To identify factors associated with the use of selected medical services near the end of life in cognitively impaired residents of rural and urban nursing homes. DESIGN Retrospective cohort study using Centers for Medicare and Medicaid Services administrative data for 1998 through 2002. SETTING Minnesota and Texas nursing homes. PARTICIPANTS Nursing home residents aged 65 and o...

Background: Uterus didelphys is a Müllerian duct anomaly which is clinically significant because only 45% of UD patients achieve term delivery and have associated increased risk of spontaneous abortion, foetal growth retardation, mal presentation, and a significant caesarean section delivery rate. Case: A 26-year-old Gravida 2 Para 1 Abortion 1 woman with uterus didelphys and associated complet...

We show that the migration of low-skilled, rural workers to urban centers has a negative causal effect on innovation of firms in such urban centers. Our tests exploit the staggered relaxation of city-level household registration system in China, which facilitates rural residents to migrate to cities. We find a significant decrease in innovation for firms headquartered in cities that have adopte...

BACKGROUND In Brazil, studies evaluating the prevalence of asthma and allergic diseases among children living in rural area compared to urban area are rare. Some authors identified as risk factors for higher prevalence of current wheezing to have a family history of asthma, to have contact with pets, and being student in an urban school. The International Study of Asthma and Allergies in Childh...

The Washington State legislature has recently considered several policy options to address a perceived shortage of primary care physicians in rural Washington. These policy options include opening the new Elson S. Floyd College of Medicine at Washington State University in 2017; increasing the number of primary care residency positions in the state; expanding educational loan-repayment incentiv...

BACKGROUND China has witnessed a remarkable increase in sexually transmitted infections (STIs) and HIV. The study is to assess the prevalence of HIV, HBV, HCV and syphilis and related risk factors among drug users in mandatory detoxification center Qingyuan, Guangdong, China. METHOD A cross-sectional study on drug use behaviors, sex behaviors, and presence of antibodies to HIV, HCV, Treponema...

tested the hypothesis that rural populations have increased exposure to Escherichia coli O157:H7. We measured circulating antibodies against the O157 lipopolysaccharide in rural Wyoming residents and in blood donors from Casper, Wyoming, and Seattle, Washington, by enzyme immunoassay (EIA). EIA readings were compared by analysis of variance and the least squares difference multiple comparison p...