نتایج جستجو برای: cross sectional area
تعداد نتایج: 1042599 فیلتر نتایج به سال:
background& aims: the mortality rate for breast cancer is directly related to the stage of disease at diagnosis. the present study aimed to determine the influencing factors on knowledge, attitudes, and practices of women regarding breast cancer and its screening methods.material & methods: in a cross- sectional study, evaluated 383 women referring health centers of ilam. sampling was d...
conclusions the present study reports the characteristics of iranian hookah smokers. most hookah smokers were educated young adults, who often smoked at home or in teahouses and in the company of friends. the majority of the participants smoked fruit-flavored tobacco and had no desire or intention to quit smoking. further studies in this field are required and hookah smoking should also be inco...
background road traffic injuries are among the leading causes of death in the world and iran. objectives the aim of this study was to assess the role of age, sex, education, and time of accident on human casualties and mortalities of road crashes in iran. materials and methods this study was based on data gathered by iranian police department from the records of road crashes from april 4, 2008 ...
background: vaccination status is more often evaluated by up-to-date vaccination coverage rather than timeliness of immunization. this study was conducted to evaluate delayed vaccination during infancy period and to determine the predictors effecting on vaccination delay. methods: this cross-sectional study was conducted from june to september 2011 in hamadan province, the west of iran, recruit...
purpose : to determine the prevalence of refractive errors, strabismus and amblyopia in the schoolboys of varamin city, iran methods : in a cross-sectional population-based study in 2010, we used random cluster sampling to select the participants from varamin high school students. examinations were conducted at the school site under standard conditions. all students had non-cycloplegic refracti...
OBJECTIVE The purpose of this study was to evaluate the relations between the degree of encroachment, measured as the cross-sectional area of the dural sac, and low back pain in a large population. METHODS In this cross-sectional study, data from 802 participants (247 men, 555 women; mean age, 63.5 years) were analyzed. The measurement of the cross-sectional area of the dural sac from the lev...
AIMS Histology and retrospective clinical studies have indicated that the amount of neointimal hyperplasia is dependent on the arterial injury induced during stent implantation. This study analysed, prospectively, the impact of high vs low pressure stent implantation techniques using a second generation stent on intimal hyperplasia and follow-up lumen dimensions. METHODS AND RESULTS Post-inte...
Numerous studies have utilized histologic sections of coronary arteries as the standard for testing the validity of the angiographic determination of coronary artery dimensions. However, little attention has been given to artifactual dimensional changes that occur during fixation and histologic processing of tissues (dehydration, clearing, embedding, sectioning and staining). Using planimetric ...
background and aims: internet addiction is one of the problems emerged with the development of technology. considering the potential negative effects of internet addiction on health, the present study aimed to determine the prevalence of internet addiction in university students in ilam, west of iran, in 2014. methods:in this cross– sectional study, 1066 university students in both public and ...
purpose: to determine the prevalence of refractive errors in the students of mashhad university of medical sciences, iran methods: in this cross-sectional study, we used cluster sampling for selecting participants from every department of mashhad university of medical sciences, proportional to the number of students in each department. each participant received refraction examination with an au...
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