background the sitting position, rather than squatting, during defecation has been hypothesized to be a risk factor for colorectal cancer (crc). methods we conducted a case-control study to test this hypothesis. a total of 100 crc cases from two hospitals in iran and 100 control subjects, selected from the coronary care unit (ccu) of those same hospitals were selected for this study. we adminis...

purpose: risk factors of pelvic inflammatory disease can be different in different countries because of different sexual behaviors and religious restrictions. this study investigated the risk factors of this disease in iranian women in tehran. materials and methods: in this cross-sectional, descriptive study 1104 women with pelvic inflammatory disease were assessed from may 2010 to march 2011. ...

background: colorectal cancers (crcs) including colon, rectum and anal cancers are the third most prevalent cancers in the world. there are strong evidence showing the risk of the cigarette smoking, alcohol use, low physical activity and some types of diets in crcs; however, few studies explored the relationship between opium use and crcs. this study aimed to investigate the association between...

background: thyroid cancer is the most common endocrine malignancy. several risk factors were found to play a role in thyroid cancer. the purpose of the study was to determine the risk factors for thyroid cancer, in babol, north of iran. method: 80 patients with thyroid cancer were selected as case group and 160 people living in the neighborhood of the patients as control group. risk factors in...

background: hamadan province is one of the high-risk regions in iran for multiple sclerosis (ms). a majority of the epidemiological studies conducted in iran addressing ms are descriptive. this study was conducted to assess ms and its associated risk factors in hamadan province, the west of iran . methods: this case-control study compared 100 patients with ms (case group) and 100 patients with ...

background certain social determinants may influence host susceptibility to tuberculosis (tb) infections, and increase the risk of developing the disease. objectives the present study aimed to evaluate the effects of several host and environmental factors on the risk of tb in northern iranian households. patients and methods this case-control study was conducted for one year between 2010 and 20...

prostate cancer is a major cause of morbidity and mortality in iran, yet there are few studies examining risk factors specific to the iranian context. we conducted a case-control study to explore risk factors for prostate cancer in mazandaran, iran from 2005 to 2008. the cases were 137 men with clinicopathologically confirmed prostate cancer. controls were 137 neighborhood and age match men wit...