Showing 8 results for Mahmoodi
M Moradi Lakeh, M Montazer, M Moradi, Smh Mahmoodi, Sap Alemzadeh Bahreini, S Askari,
Volume 5, Issue 3 (20 2009)
Abstract
Background & objectives: The trend of stunting indicates of long term health status and the efficacy of different health interventions for chronic malnutrition in children. The objective of this study was to investigate the trends of stunting prevalence in preschool children living in rural area of Robat-Karim.
Methods: The method of Age-Period-Cohort analysis was utilized. Existing height data of all children whom registered in health houses of Robat-Karim health network were converted to Standard Deviation Scores (SDS) using Anthro2005 software The SDS≤ -2 for height-for-age was defined to be the moderate/severe forms of stunting. Age-Period-Cohort analysis was done with two graphical and statistical methods. The statistical method was based on logistic regression modeling in which stunting was assumed to be the dependent variable and age, birth cohort and time period were independent variables.
Results: Growth data of 970 (51.9%) boys and 898 (48.1%) girls were analyzed. The overall stunting prevalence was estimated 8.0%. This estimation by Logistic regression models (P<0.001) and graphical analyses were similar and showed that the prevalence of stunting has a decreasing trend in different birth cohorts and time periods. The prevalence of stunting was higher in the 2nd and 5th-6th years of life. The stunting prevalence was significantly higher in boys (9.3%) and non-Iranian children (9.5%) (P<0.001).
Conclusions: The prevalence of stunting appears to be decreasing in the investigated population. Appropriate interventions is thought to be essential for reducing stunting of 2nd and 5th-6th years of life, boys, and non-Iranian children.
Mr Ghadimi, M Mahmoodi, K Mohammad, H Zeraati, M Hosseini, A Fotouhi,
Volume 7, Issue 2 (19 2011)
Abstract
Background and Objectives: Each year almost 400,000 people are diagnosed with oesophageal cancer worldwide. Wide variation in incidence has been reported both between countries and in different ethnic groups and populations within a country. The area with the highest reported incidence for oesophageal cancer is the so-called Asian ‘oesophageal cancer belt’, which stretches from eastern Turkey through north-eastern Iran, northern Afghanistan and southern Russia to northern China. In the high risk area of Gonbad in Iran, world age-standardised rates are more than 200 per 100,000 and the male/female ratio is reported as 0.8:1.0.This study aimed to assess the risk factors and demographic factors influencing survival of patients with esophageal cancer in north of Iran using weibull and log-logistic regression models.
Methods: Demographic and clinical data of 359 patients with confirmed diagnosis of esophageal cancer from Babol Cancer registry utilized for our model. parametric and weibull models were employed to analyze the data. The Akaike information criterion (AIC) was also considered as a criterion to select the best model(s). All p values as 0.05 were considered as statistically significant.
Results: The sample study consisted of 62.7% men and 37.3% women. Estimated survival rates in 1, 3, and 5 years following diagnosis were 23%, 15%, and 13% respectively. According to AIC criterion, the hazard rate of non-monotonic and rejection proportional hazards assumption (p<0.05), log-logistic model was more efficient than weibull model. Family history of having cancer in patients showed a significant difference in both models.
Conclusion: It is concluded that early detection of people with a family history of cancer can be effective as an important factor in reducing the risk of death in patients with esophageal cancer.
D Shojae Zadeh, A Mehrab Baic, M Mahmoodi, L Salehi,
Volume 7, Issue 2 (19 2011)
Abstract
Background & Objectives: Osteoporosis is major public health concern affecting millions of adults particularly older adults and women worldwide. Designing effective educational intervention is principle in any health promotion program. The purpose of this study was to evaluate the efficacy of an educational intervention based on health belief model on knowledge about, attitudes toward and practice of prevention osteoporosis among women with low socioeconomic status in Isfahan.
Methods: The study population consisted of 14 women with low socioeconomic status and under 60 years old. A valid and reliable questionnaire developed and used as measurement tool for initial and final assessments in this program. In addition calcium intake and vitamin D, physical activity and exposure to the sun were assessed.
Results: The mean age of the participants were 40.8 ± 10.52 years. The mean score of all parts of health belief model (except for perceived barriers), knowledge, sun exposure, and physical activity after educational intervention compared to before intervention, were increased significantly. There was no statistically significant difference between daily calcium and vitamin D intake before and after intervention.
Conclusion: It is concluded that the HBM Model– based educational program on Knowledge and belief regarding Osteoporosis prevention seems practical and effective. However more research should be done to find out more effective intervention regarding optimal calcium and vitamin D intake.
Aa Akhlaghi, M Hosseini, M Mahmoodi, M Shamsipour, E Najafi,
Volume 8, Issue 2 (20 2012)
Abstract
Background & Objectives: Peritoneal
dialysis is one of the most common types of dialysis in patients with renal
failure. However multivariate analysis such as log- rank test and Cox have
usually used to evaluate association of risk factors in survival of this group
of patients, the aim of this study was to perform of Weibull, Gamma, Lognormal and
Logistic Mixture cure models in survival analysis of these patients.
Methods: Data
of 433 patients undergoing CAPD who registered in two centers in Tehran, Iran
between 1997 to 2009 were used in this analysis. We investigated center,
gender, age, cholesterol, Low Density Lipoprotein (LDL), High density
lipoprotein (HDL), triglyceride, albumin, hemoglobin, creatinine, Fasting Blood
Sugar (FBS), calcium and phosphorous as variables effect with Kaplan-Meier and
cure model. CUREREGR module was used for survival analysis.
Results: Comparison
of AIC (Akaike Information Criterion) of Weibull, Gama, Lognormal and Logistic
Mixture cure models showed that Weibull distribution AIC is lower for almost
all variables than other distributions. Weibull distribution has better fitness
for data than others. In the multivariate Weibull model, age and albumin
variables had significant effect on long-term survival of patients (P<0.01).
Triglycerides effect on long-term survival had borderline (P = 0.065). Also
HDL, FBS and calcium were significant on short term survival (P<0.01) but
significance of LDL was borderline (P=0.088).
Conclusion: Cure models have the ability to analyze
dialysis patients' survival data and can differentiate long-term survival from short-
term survival. The interpretation of survival data with these statistical
models could be more accurate and would help to make better prediction for
patients by health care professionals.
E Mohammadi Farrokhran, M Mahmoodi, K Mohammad, A Rahimi, F Majlesi, M Parsaeian,
Volume 9, Issue 1 (5-2013)
Abstract
Background & Objectives: Although several studies have been carried out for evaluation of the first birth interval, none of them has considered the presence of infertile women within the sample. Therefore, the aim of this study was to employ survival analysis to study the first birth interval and its determinant factors more accurately.
Methods: In Data from 1068 married women of reproductive age in west Azarbaijan province were considered in this investigation. Two-stage sampling design was used to collect data via a questionnaire, modified Gompertz model, a special kind of cure models, was employed in this study. For descriptive and analytical data analysis, SPSS 16 and R 2.12 were used respectively.
Results: In this study, the average interval between marriage and first birth was 3.9± 0.7 (± SD) years. Using modified Gompertz model, among all demographic factors only mother’s education had significant effect on the first birth interval so that with increasing mother’s educational level, the first birth interval had also increased.
(P =0.007). In addition, the estimation of the proportion of women who did not have any children was 0.062 that showed a positive trend with increasing mother’s educational level.
Conclusion: This study revealed that due to the presence of infertility among married women the use of Modified Cured Gompertz model is an appropriate method for evaluation of the first birth intervals and it's determinant factors.
K Holakouie Naieni , S Hashemi Nazari , M Mahmoodi, M Shekari, A Madani,
Volume 9, Issue 4 (3-2014)
Abstract
Background & Objectives: One of the major questions in epidemiological and social science researches is studying the relationship of the living place with social and health outcomes. In this study, we measured segregation indices for a number of important socioeconomic indices using the 2006 Iranian census data to find out whether residential segregation is correlated with the available differences in the health level in the subgroups of certain variables.
Methods: Twenty percent of the 2006 national census data was used for measuring segregation indices. Residential segregation indices were measured once for Hormozgan Province among its eleven cities and then for each city among theirs sections. Six segregation indices were measured. We used the common cut points for interpreting the values of dissimilarity index and information theory index.
Results: According to the dissimilarity and information theory index, the segregation of most of the variables in the province fell within the category of mild segregation. Segregation of the variables in some cities fell within the category of moderate, severe, and even extreme. Conclusion: The results indicated improper distribution of some of these variables in geographic units in some of the cities of Hormozgan Province. This information can help the authorities who are committed to implementing the health equity and social justice.
P Rezanejad Asl , M Hosseini, S Eftekhary, M Mahmoodi , K Nouri,
Volume 10, Issue 3 (Vol 10, No.3 2014)
Abstract
Background & Objectives : Longitudinal studies are used in many psychiatric researches to evaluate the effectiveness of treatment. The main characteristic of longitudinal studies is repeated measurements of the patients over time. Since observations from the same patient are not independent from each other, especial statistical methods must be used for analyzing the data. Missing data is an indispensable component in longitudinal. In this study, we examined the effect of comprehensive treatment on social-individual performance in patients with the first episode of psychosis.
Methods : The data was from a clinical trial involving patients who were admitted to the clinics of Roozbeh Hospital between 2006_2008. We employed a random effect model for the analysis of longitudinal ordinal responses with non-monotone missingness using the R software version 3.0.2.
Results: The results showed that comprehensive treatment with follow-up at home, age, and family history of the disease had a significant effect on the social-individual performance of the patients. The estimation of the coefficient of age and its standard deviation were 0.05 and 0.03, respectively. The estimation of the coefficient of family history of the disease was -0.82 with a standard deviation of 0.41, and the coefficient of comprehensive treatment with follow-up at home and its standard deviation, were estimated -1.04 and 0.44, respectively.
Conclusion: The model used in this study showed that the comprehensive treatment with follow-up at home was better because individuals under this type of treatment are more likely to have social-individual performance.
Mm Gouya, Sm Zahraei, Gh Moradi, M Karami, S Mahmodi, Sh Shah Mahmoodi , E Ghaderi, F Kaveh, A Norouzinejad , K Hajibagheri, Kh Rahmani,
Volume 16, Issue 2 (Vol 16, No.2 2020)
Abstract
Background and Objectives: : According to the global strategy for polio eradication, targeted surveillance of the disease is one of the main tasks of the health system. The purpose of this study was to review the status and surveillance of poliomyelitis/acute flaccid paralysis (AFP) in Iran.
Methods: The present study was a review on the processes, structures and achievements of the poliomyelitis/AFP surveillance system in Iran during 2017-2019. The data of this study were obtained from the surveillance system of the Center for Communicable Disease Control; a review of the records, documents, books and published articles; and interviews with process owners and experts of poliomyelitis/AFP surveillance.
Results: The polio eradication program in Iran is based on the action plan of the World Health Organization that was introduced initially in 1988. Currently, the surveillance system of AFP is active at three levels: country, university, and city. The number of poliomyelitis cases in the country decreased from 50 cases per year in 1985 to zero in 2001, and Iran has been a polio-free country since 2001. The final report on polio eradication in Iran was approved by the regional commission on polio detection in April 2006.
Conclusion: The surveillance system of AFP has had a proper effectiveness throughout the country. Maintaining this situation in the country requires an increase in the sensitivity of the surveillance system of the disease, regular monitoring of vaccine coverage, strict implementation of international health regulations, especially on the eastern borders of the country, and providing technical assistance to neighboring countries.
