objective: psychiatric hospitalization of patients imposes heavy burdens on caregivers, but little is known about this issue in iran. the present cross-sectional study aimed to investigate the risk factors associated with psychiatric hospitalization of patients with schizophrenia who were the regular clients for the educational programs of the iranian society for supporting individuals with sch...

We describe a model that takes into account the tail dependence present in a large set of historical risk factor data using the modern concept of copulas. We extend the popular t-copula to obtain a new grouped t-copula which describes more accurately the dependence among risk factors of different classes. We explain how to estimate the parameters of the grouped t-copula and apply the method to ...

The theory of copulae is known to provide a useful tool for modelling dependence in integrated risk management. In the present paper we review and extend some of the more recent results for finding distributional bounds for functions of dependent risks. As an example, the main emphasis is put on Value-at-Risk as a risk measure.

background: increased estimated body iron stores have been recently suggested to be associated with increased risk of acute myocardial infarction (ami); however the question of whether serum ferritin level as an indicator for estimating body iron is an independent risk factor for cardiac events is still questioned. in the present study, we assessed whether serum ferritin was associated with the...

conclusions the high incidence density of diarrhea among the children recruited in this study indicates the need for educational programs directed at people who are involved in this issue. results the incidence of acute diarrhea among the 0 - 1-year-old children was 26.7 cases per 1,000 children per month. independent risk factors for the occurrence of diarrhea were maternal age under 20 years ...

normal 0 false false false en-us x-none fa background : this study aimed to determine the types of elder abuse, their risk factors and the characteristics of abusers among abused elderly people aged above 60 years in isfahan. methods : in this descriptive cross-sectional study, abused elderly individuals aged above 60 years that referred to the centers of competent jurisdiction with complaint a...

background and purpose: identifying the risk factors of hepatitis c، b، and hiv is necessary to prevent their increasing prevalence. therefore، we sought to identify the frequency of their risk factors among the homeless of tehran، iran during 2005 to 2007. methods and materials: this descriptive analytical study was conducted during 2005 to 2007 on the homeless population of tehran، iran. two ...

background: composition of dust in the air due to contact with human via inhalation, ingestion and skin absorption will have a large impact on public health. in the learning environments such as universities, many people spend most of their day in contact with the dust. the purpose of this study was to evaluate the concentration of heavy metals lead, chromium and copper in the training space of...