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Introduction: Patient hospitalization rate (P.H.R) is an important issue in health decision making because its increasing can imposes abundant expenditure on each patient or therapeutic or health systems like assurance companies. Moreover, it can increase the danger of nosocomial infections. So, description, examinating and modelling of P.H.R. can be as a guideline for above subjects and as an introduction would lead one to study the issue with insight.
Materials and Methods: For determining of P.H.R., Iwo samples of size 1428 and 816 of patients were chosen systematic randomly from Vali-Asr and Ta'min-Ejtemai hospitals, respectively during the year of 2002. Hospitalization rate, age, sex, location of birth place and residence place of patients recorded. Mixed distributions modelling and Poisson regression models as well as ordinary regression methods were applied to analyze and modelling the data.
Results: Means of P.H.R of patients at Vali-Asr hospital was 4.1±5.4 days. Two component Poisson was a relatively appropriate model was a very relevant model for analyzing of their P.H.R. By using mixed Poisson regression method a significant relationship among patient's age, marriage status and location of life with P.H.R was obtained. Findings in Ta'min-Ejtemai showed that the mean of P.H.R was 4.7±3.2 days. One component Poisson model was appropriate model for data distribution. A significant relationship among age, sex, location of life with P.H.R in this hospital was seen.
Conclusion: Our findings showed that P.H.R in Vali-Asr hospital follows two component Poisson model. For Vali-Asr data, the normal model was not appropriate even with changing the statistics variables, but for P.H.R data of Ta'min-Ejtemai, changing the logarithmic variable could transform data into approximate of normal model. Finally, comparison between mixed distribution Poisson model and acquired regression with simple linear regression in Val-Asr hospital presented different results, but in Ta'min-Ejtemai hospital had similar results.

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Introduction: While elderly people enter the hospital in biological crisis, family caregivers enter the hospital in psychological crisis. But professional caregivers haven’t adequate knowledge of family caregivers' experiences. Therefore they forget that family caregivers are in suffering equally. Since suffering is a significant concept in nursing science and knowing and comprehending sources of suffering in family caregivers by professional caregivers is very important, this study is done to describe the nature and structure of sources of suffering in family caregivers of hospitalized elderly patients. Materials and Methods: This is a qualitative study with phenomenological method. Population of the research is all elderly patients' families that were hospitalized in one of the hospitals of Isfahan University of medical sciences. Sampling method was purposive and continued until data saturation. The numbers of participants are 12. Data were gathered through in-dept interview and data analysis done by “Parse” method that was not used in Iran. Results: The finding of this research is summarized in these core concepts: Patients and therapeutic interventions as source of suffering, hospital as source of suffering, disturbance in family and social life as source of suffering, self neglect as source of suffering. These concepts will be discussed in the full article. Conclusion: Participants' experiences reflect the need for planning interventions such as developing supportive groups, providing facility and instruments and continuous support for family caregivers during hospital stay. Also results show that educational programs are necessary for effective adaptation in family caregivers.

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Background: Delay in treatment of acute myocardial infarction has an important effect on developing the myocardial damage and the prognosis of the patients. In this study, interval between the onsets of symptoms until hospitalization was studied on patients who reffered to fatemeh Zahra hospital of Bushehr port. Methods and Materials: This is a cross-sectional analytic study, carried out on 120 patients, with acute heart attack in Bushehr hospital by using a sampling during 9 month period. A questionnaire was used consisted of three sections: first demographic information second, questions about time Interval between the Beginning symptoms to hospitalization and third questions about cause of delay that it was completed by inteviwe method. Results: Results showed that the total length of time between the onset of symptoms and hospitalization EU was 273/33±259 minutes. There was significant relation between positive family history, past history of CAD, having insurance, chief complain, going to physician clinic before hospitalization and age with the delay timed (P<0.05). The most common cause of delay was lack of knowledge about symptoms and inattention toward their importance. Conclusion: Time Interval between the onsets of symptoms to hospitalization approximately was 4.5 hours that was not acceptable. Findings indicate developing educational approaches to increasing patient’s knowledge is necessary for better understanding of symptoms in the onset of MI that hereby with the delay time reduces.