Showing 4 results for Jamshidi
R Jamshidi Orak , K Mohammad , E Pasha , W Sun , K Nori Jalyani , M Rasolinejad , O Mirzade ,
Volume 5, Issue 1 (2 2007)
Abstract
Background and Aim: Health surveillance systems are now paying more attention to infectious diseases, largely because of emerging and re-emerging infections. The main objective of this research is presenting a statistical method for modeling infectious disease incidence based on the Bayesian approach.
Material and Methods: Since infectious diseases have two phases, namely epidemic and non-epidemic, joint distributions seem preferable for modeling disease incidence. We used a hidden Markov model - suitable for joint distributions- to arrive at a statistical model applicable to infectious diseases. Parameter estimation was done using a Bayesian method. The resulting model was then applied to monthly incidence rates for malaria to test the model's applicability to real data.
Results: The error sum of squares of the model fitted to monthly incidence rates for malaria was 190.59 and the coefficient of determination between observed and fitted values was 0.84. It appears that the hidden Markov model with a cyclic regression equation has a proper goodness of fit when applied to malaria incidence rates.
Conclusion: The hidden Markov model is an efficient statistical tool for modeling infectious disease incidence rates.
M Behfar, M.a Ehsani, P Salamati, K Holakouie Naieni, R Jamshidi, P Derakhshandeh-Peykar,
Volume 8, Issue 4 (20 2011)
Abstract
Background and Aim: Thalassemia, a heterogeneous disease, is one of the most common single-gene diseases worldwide. The aim of this study was to find associations between hematological indices and severity of beta-globin gene mutations in beta-thalassemia carriers.
Materials and Methods: In this cross-sectional study, 30 beta-goblin gene mutations (b+ and b○) in 1206 unrelated beta-thalassemia carriers were investigated. In addition, their hematological indices, including CBC and electrophoresis results, were determined. The association between genetic findings and hematological parameters (mean corpuscular volume (MCV) and mean hematocrit corpuscular hematocrit (MCH)) were determined using the SPSS software, the statistical test being the t-test.
Results: The results indicated that b+-thalassemia carriers had higher MCV and MCH means than b○-thalassemia carriers. These findings would certainly have practical implications in public health.
Conclusion: The results show a significant correlation between two hematological indices and certain types of mutations in beta-thalassemia carriers.
Maryam Jamshidi Moghadam, Gholam Reza Jahed Khaniki, Abbas Rahimi Foroushani, Nabi Shariatifar,
Volume 17, Issue 3 (12-2019)
Abstract
Safe food and proper nutrition play a vital role in the health of populations. Food-borne diseases are a serious public health problem. Food handlers working in the kitchen play an important role in the transmission of foodborne diseases. Food-borne diseases, especially those caused by bacteria, viruses, parasites and fungi, are preventable. Proper manpower training is a key factor in provision of safe food and prevention of malnutrition.
Materials and Methods: A descriptive, cross-sectional and applied study was conducted in 10 hospitals affiliated with Tehran University of Medical Sciences in 2017. The knowledge, attitude and practice of 136 food handlers working in the kitchens of the hospitals was assessed using questionnaires.
Results: Analysis of the data showed that 8.08% of the participants had a good knowledge about food hygiene and safety (a score above 75%), while 16.7% of them achieved the full score as regards attitude. The hospitals’ performance was at a desirable level. The level of food hygiene and safety knowledge of the food handlers was significantly associated with their refresher trainings (p <0.05).
Conclusion: It can be concluded that the awareness of food handlers in most of the hospitals about food hygiene and safety is not sufficiently high. It is suggested to design and implement proper refresher training crash courses, as well as sensitize the personnel.
Zahra Jamshidi, Bahram Mohebbi, Elham Shakibazadeh, Azar Tol, Mehdi Yaseri,
Volume 19, Issue 1 (6-2021)
Abstract
Background and Aim: Patients with diabetes need continous support for sustainable self-care behaviors. The use of supportive forces to improve the level of self-management of diabetes is felt. The aim of this study was to compare the effectiveness of direct and indirect virtual educational interventions on the promotion of self-management behaviors and diabetes control in women with type 2 diabetes. The study was conducted in 2019.
Materials and Methods: This clinical trial study included 100 females with type 2 diabetes under the coverage of three health centers affiliated to Tehran University of Medical Sciences, randomly divided into two groups of direct and indirect education (50 subjects in either group). A questionnaire was used as the standard tool of diabetes self-management. The education imparted to the subjects was based on the latest version of Diabetes Self-Management Education (DSME), and the educational sessions were based on the Stanford University's self-management model, including six 90-minute sessions during three weeks. Data were analyzed using SPSS-16 statistical software, the statistical tests being covariance analysis, etc.
Results: There were no statistically significant differences between the direct and indirect educational groups as regards the self-management scores and HbA1c levels in the first and second pre-tests (p<0.05). However, both the self-management scores and HbA1c levels of the two groups, determined at 3- and 6-month follow-ups, were found to be statistically significantly different (p<0.05).
Conclusion: The findings of this study indicate the feasibility of using volunteers, after empowering them properly, to implement diabetes self-management educational interventions.
