background: unintentional drug intoxication is still a major cause of mortality and morbidity in young children. method & materials: in order to study changes of epidemiological indices of children intoxication during a 10-year period in hamadan province, all cases admitted to ghaem hospital from 1995-1999 were recruited, and compared with all cases admitted to the same hospital from 1990-1994....

epidemiological indices of 39 subjects with autoimmune hepatitis and their response to treatment in iran

The research may or may not be epidemiological but there is a high likelihood that it would use the epidemiological indices discussed in this note. Rate, risk, hazard, incidence, and prevalence are everyday indices of disease occurrence that are used in a large number of research endeavours. Although these indices apparently look simple but many researchers are not fully comfortable in their us...

The results of ventilatory function tests (FVC, FEV1, and FEV %) depend to a great extent on age and height. In epidemiological investigations, the main purpose of which is to analyse the influence of environmental factors on lung function in the population, it is therefore necessary to use multiple regression methods. This form of statistical analysis is difficult and laborious when there is n...

OBJECTIVE To analyze whether two simplified indices, "DMF in 6 Teeth"(DMF6T) and "DMF in two quadrants" (DMF2Q), could be indicated for epidemiological surveys of oral health according to dental caries distribution. METHODS The sample came from epidemiological data in 29 municipalities. A total of 2,378 examinations were done on 12-year-old schoolchildren. The mean DMFT from each locality was...

evidence provided from studies in iran points to a possible bias in application of the standard epi cluster sampling procedure, when carried out in populations with highly variant birth rates, tends to over-represent the low birth rate, i.e. higher socio-economic, strata, and if the entity under study shows significant socio-economic gradient, then the estimates arrived at by this method might ...

Dengue is a viral disease caused by a flavivirus that is transmitted by mosquitoes of the genus Aedes. There is currently no specific treatment or commercial vaccine for its control and prevention; therefore, mosquito population control is the only alternative for preventing the occurrence of dengue. For this reason, entomological surveillance is recommended by World Health Organization (WHO) t...

Introduction: During the last half century, all indices of mortality imply the prompt and continuous decrease of nationwide mortality. Alongside reduction of mortality, there happened a comprehensive form of transition of mortality causes, from epidemical and other communicable diseases such as mothers' (birth giving) mortalities and birth related ones, to other causes like chronic diseases r...