background: several epidemiological studies conducted on underground miner’s show that exposure to elevated levels of radioactive radon gas is expected to increase the risk of lung cancer. relative risk of lung cancer is almost linear with radon exposure. elevated concentrations of radon are not only reported within mines but also for closed indoor environment of general public houses. measurem...

background and aims: infertility is a major problem during reproductive age. physical and psychological effects of infertility in women are problematic. the aim of this study was to determine the potential predictive factors of infertility, among women referring both public and private health centers in ilam province, western iran, in 2013. methods: in this cross-sectional study, 1013 women ref...

background:  gender  difference  has  been   reported  in stroke  risk factors  and  disease  history. the aim  of this study  was  to  compare  risk factors  and  the  severity  of ischemic stroke based  upon  modified rankin scale (mrs) and hospital mortality between two genders. methods: in a  cross-sectional  study, 341  patients  (44% males and 56% females with a mean age of 68.94 ± 12.74 ...

cytomegalovirus (cmv) infection is one of the most common infections that affects humans’ cardiovascular system. although the literature includes controversial evidence for any correlation between cmv infection and arterial atherosclerosis, the majority of studies, especially those with larger patient population and stronger data stand for such a relationship. however, the number of prospective...

800x600 background : hepatitis b and c infections have remained major global health burdens during the most recent century. the viral agents responsible for these diseases share common modes of transmission with human immunodeficiency virus (hiv) such as needle-sharing in iv drug abusers. coinfection of hepatitis b or c with hiv increases the rate of progression of chronic liver disease. given ...

background: determining the prevalence and risk factors of thrombocytopenia among neonates enables us to prevent the inevitable and sometimes irreversible complications. in this study we aimed to survey the frequency of thrombocytopenia and its demographic features and risk factors. materials and methods: in this cross sectional study the platelet counts of 364 neonates admitted to neonatal int...

milk is often described as a complete food because it contains protein, sugar, fat, vitamins, and minerals. this study was performed to investigate risk factors affecting chemical and bacteriological quality of bulk tank milk. according to the following conducted experiments, the milk was divided into two standard and non-standard groups. then, effect of risk factors on making the samples non-s...