نتایج جستجو برای: incidence rate
تعداد نتایج: 1149573 فیلتر نتایج به سال:
Background and purpose: The incidence of tuberculosis (TB) in Iran is about 13 in 100000 people and this rate in Golestan and Sistan & Balouchestan Provinces is the highest. Due to the proximity of Golestan to Mazandaran, this epidemiological survey has been done to identify the high risk locations by using of disease mapping of tuberculosis incidence rate. Materials and methods: This obse...
the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis , a one- way anova experimental design was carried out. 24 senior student of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inte...
introduction: compared to other developed countries, the maternal mortality rate is much higher in iran. bleeding, infection and gestational hypertension are the main causes of maternal mortality and abortion is a major cause of bleeding and infection. the objective of this study was to determine the incidence of abortion and its effect on maternal mortality. materials and methods: this descri...
background: esophageal cancer is the second most common malignancy in iranian men and third most common in iranian women.the aim of this study is to discover the geographic distribution for age-standardized incidence rate of esophageal cancer among both genders in iran. methods: this ecological study used re-analysis medical records aggregated to provinces from the national cancer registry and ...
Accidents as the second cause of disabilities, are the health problems in society that can cause the social, mental and physical disorders and sometimes lead to death. Students of primary schools at the age of under 12 have been known as the high risk population in accidents. In this study, ...
OBJECT To determine the indications for surgery in patients harboring asymptomatic meningiomas, the authors retrospectively analyzed the natural course and surgical outcome of asymptomatic meningiomas and then compared these to the natural course and surgical outcome of symptomatic meningiomas. METHODS Between 1989 and 2003, 1434 patients harboring meningiomas, who were treated in Kumamoto Pr...
To assess the attack and incidence rates for influenza virus infections, during October 2006-October 2007 we prospectively studied 1,190 adult short-term travelers from the Netherlands to tropical and subtropical countries. Participants donated blood samples before and after travel and kept a travel diary. The samples were serologically tested for the epidemic strains during the study period. T...
BACKGROUND Pollution has been established as an environmental factor in the development of lung cancer; however, the incidence rate in Shijiazhuang, one of China's most heavily polluted cities, is unknown. METHODS As Chinese citizens are entitled to complete public medical insurance coverage, we estimated the lung cancer incidence rate among registered citizens of urban Shijiazhuang in 2012 u...
This paper concerns the switching on of two-dimensional time-harmonic scalar waves. We first review the switch-on problem for a point source in free space, then proceed to analyse the analogous problem for the diffraction of a plane wave by a half-line (the ‘Sommerfeld problem’), determining in both cases the conditions under which the field is well-approximated by the solution of the correspon...
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