background it is known that risk factors related to neonatal bacterial sepsis are complex. objectives the current study aimed to determine the risk factors of neonatal sepsis. materials and methods this study was conducted on 1023 neonates admitted to neonatal intensive care units (nicus) in south sinai governorate hospitals from january 2010 till september 2014. demographic data of the neonate...

in this study business operations and liquidity and credit risk on price fluctuations on the stock exchange since 2010 to 2013 has been tehran distance. the sample consisted of 76 company the systematic elimination method is selected. the company had a total of 304 years, in this study, the hypothesis of linear regression and correlation to analyse the data and test hypotheses eviews software i...

background: a recent study at the maroua provincial hospital revealed that hypertension in pregnancy was the first cause of maternal death, representing 17.5% of the 63 maternal deaths recorded between 2003 and 2005. knowing little about the causes, this study was to identify the possible risk factors for hypertensive disorders in pregnancy. methods: this case-control study was-done at the maro...

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...