Showing 23 results for Holakouie Naieni
R Chaman, A Shamshiri, K Kamali, Ghr Khalili, K Holakouie Naieni,
Volume 2, Issue 1 (23 2006)
Abstract
Background & Objectives: This investigation was prompted by the growing importance of nested case-control studies and the increasing frequency with which they are done in epidemiologic research. After a brief explanation of nested case-control studies, we evaluate the trends in research methodology over the last decade, especially with regard to cohort, case-control, and nested case-control designs.
Methods: Data for this study were extracted from the PubMed database, using these keywords: Nested Case-Control, Risk-Set Sampling and Density Sampling. The search was confined to the 10-year period from 1996 to the end of 2005. As for other methodologies, we used keywords Cohort and Case-Control for a search over the same time period. The search itself was performed on April 25, 2006.
Results: We found 2011 articles reporting nested case-control studies. There were 95 such articles in 1996 the number had increased to 289 in 2005. Case-control and cohort designs accounted for 68456 and 60479 articles, respectively.
The number of case-control articles rose from 4378 in 1996 to 10270 in 2005, while that of cohort articles increased from 2981 to 9771 over the same period.
Conclusions: The number of cohort and nested case-control articles followed similar upward trends over the last decade and their rate of increase was greater than that of simple case-control articles.
K Khalaji, R Majdzadeh, Mr Eshraghian, A Motevalian, K Holakouie Naieni,
Volume 2, Issue 1 (23 2006)
Abstract
Background & Objectives: Considering the lack of adequate basic information on risk factors for road traffic injuries in Iran, a study was conducted to determine the association between potential risk factors and the incidence of injuries in motor vehicle drivers.
Methods: We performed a population-based case-control study on Qazvin-Loshan road. Risk factors related to injury incidence were compared between 175 cases and 175 controls. Cases were drivers recently injured in road accidents. Controls did not have any injury and were selected systematically while the study was being conducted. Injury was defined as trauma needing medical or surgical treatment. Information was obtained through police reports and interviews with cases and controls.
Data were analyzed by two methods bivariate analysis (crude) and by a multivariate unconditional logistic regression model.
Results: In bivariate analysis, risk factors for road traffic injuries risk were failure to wear seat belts or protective helmets, ejection from vehicle, severity of collision, number of crashes, motorcycle vs. other motor vehicle accidents, fire, rain and fog, and collision with fixed objects. In the logistic model, factors such as seat belt or helmet use with OR= 0.619 (0.376-1.018), ejection from the vehicle with OR= 2.952 (1.235-7.056), severe collision with OR= 5.413 (2.865-10.224), motorcycle vs. other motor vehicle accident with OR= 3.164 (1.05-9.537) and raining and fog vs. good weather with OR= 4.562 (1.663-12.514) were found to influence injury incidence. There was an interaction between severity of collision and weather status.
Conclusions: Better speed control, use of seat belts or helmets, not using motorcycles for road travel and equipping vehicles with fire extinguishing capsules are recommended to reduce road accident injuries.
S Nedjat, A Montazeri, K Mohammad, R Majdzadeh, N Nabavi, F Nedjat, M Nabavi, K Holakouie Naieni,
Volume 2, Issue 3 (24 2006)
Abstract
Background & Objectives: For those with a chronic illness, suffering may result not only from physical limitations, but also from the psychosocial consequences of having a chronic condition. Therefore, simply measuring physical health is not enough anymore. It is necessary to evaluate quality of life as an important clinical outcome in these patients. We conducted the present study to measure quality of life (QoL) in multiple sclerosis (MS) patients and its predictors in comparison with the general population in Tehran, using a generic and overall QoL instrument, the WHOQOL-BREF (World Health Organization Quality of Life-BREIF). This questionnaire comprises four domains including physical health, mental health, social relationships, and environmental health. For each domain, scores range from 4 to 20, higher scores corresponding to a more favorable QOL.
Methods: This study was of cross-sectional type and involved 145 selected systematically patients registered in the Iranian Multiple Sclerosis Society. The WHOQOL-Questionnaire was filled in for these patients through telephone interviews. The results were compared with quality of life scores from the general population obtained from a population-based study in Tehran. Multiple regression was used for data analysis.
Results: The response rate was 97% 73.8% of participants were female, the mean age of participants was 36.5 (SD = 10.4) years, and the mean years of their formal education was 12.5 (SD=3.6). Mean scores for physical health, psychological health, social relationship and environmental health were 11.5 (SD=3.2), 11.8 (SD=3.2), 12.7 (SD=3.1), and 11.5 (SD=2.7), respectively. In comparison with the general population, the patients' scores in all domains were significantly lower than in the general population. Severity of disease and education level had a relationship with domain scores in regression analysis.
Conclusions: The WHOQOL-BREF questionnaire can discriminate between these patients’ quality of life and that of the general population and show the effect of disease severity and demographic variables on quality of life. Therefore the questionnaire can be used in this group of patients, although it may be necessary to add some specific questions to make the tool more sensitive in evaluating quality of life from a clinical perspective. Educational interventions are recommended to improve quality of life in this group of patients.
A Ardalan, K Holakouie Naieni, Ek Noji, Re Laporte, Mr Aflatounian, M Nekouie Moghadam,
Volume 2, Issue 3 (24 2006)
Abstract
Background & Objectives: The widely differing casualty rates in earthquakes of similar magnitude indicate a need for assessing the factors that determine the extent of damage to life and property. The present study looks at the structural factors and individual characteristics that had an effect on the risk of death and injury directly caused by the December 2003 earthquake in Bam.
Methods: The study population consisted of the residents of Bam on the 19th and 20th days after the earthquake of December 25, 2003. Using a cluster sampling method based on geographic location, we selected 420 households for study and asked them for information on the family members who were inside their houses at the time of the quake. The information covered the following range of items: occurrence of death or injury leading to ambulatory treatment or hospitalization, and characteristics of the building. We used logistic regression and the software package Stata 8.0 for data analysis.
Results: A total of 2089 individuals, including 1089 men (52.1%) and 1000 women (47.9%) took part in this study. There were 369 cases of death (17.7%, 95%CI=12.6-17.8%), 122 injuries needing hospitalization (5.8%, 95%CI=4.5-7.1%), and 319 cases of injury treated on an ambulatory basis (15.3%, 95%CI=12.6-17.8%), all as a direct result of the earthquake. Factors associated with increased risk of death were building destruction (OR=6.34, 95%CI=3.56-11.29), living in adobe structures (OR=1.87, 95%CI =1.03-3.4), age under 6 years (OR=3.93, 95%CI=2.17-7.11) and age 56-65 years (OR=2.52, 95%CI=1.23-5.15). Risk factors for injuries were the same as for death, with the notable exception of the building material.
Conclusions: This was the first analytic study of the risk factors for earthquake-related deaths in Iran. It revealed that total building destruction, residing in houses built with non-resistant materials, and extremes of age are significant risk factors for death in an earthquake. As for injuries, the risk factors were total building destruction and extremes of age.
R Chaman , M Yunesian , B Golestan , K Holakouie Naieni ,
Volume 3, Issue 3 (18 2008)
Abstract
Background and Objectives: A pregnancy can be considered high-risk if there are conditions that put the mother or the baby at higher-than-average risk of morbidity or mortality. Neonatal mortality rate is one of the most important indices of children's health status. The present study was conducted to evaluate the effects of high-risk states on neonatal mortality.
Methods: We performed a nested case-control study in the rural areas of Kohgiluyeh and Boyerahmad province. Within the study cohort, 97 cases and 97 controls were selected by a risk-set sampling method. Data were analyzed with univariate and multivariate conditional logistic regression models.
Results: Neonatal mortality was shown to increase significantly in high-risk pregnancies. There were no substantial differences between crude odds ratios and those adjusted for the presence of other risk factors (crude odds ratio decreased from 5.5 to an adjusted figure of 3.25 for pregnancies with one risk factor and from 5.21 to adjusted level of 4.80 for pregnancies with more than one risk factor).
Conclusions: High-risk pregnancies need great attention in family health and prenatal care programs, especially in remote rural areas. Within our rural health network there are potential cohorts for use in nested case-control studies, especially in the evaluation of neonatal mortality risk factors.
Hr Basseri, K Holakouie Naieni , A Raeisi , Kh Shahandeh , K Akbarzadeh , M Ranjbar , A Parvin ,
Volume 3, Issue 3 (18 2008)
Abstract
Background & Objectives: The aim of present study is to compare Afghan refugees and Iranian residents in terms of their knowledge, attitude and practice concerning malaria transmission and protection in an endemic area in Southeast Iran.
Methods: This cross sectional study was conducted over a period of 10 months (2004-2005) and involved a total of 775 people, including Iranian and Afghan subjects. The age range of participants was 15 to 55 years. Data collection was done through a structured questionnaire consisting of open and close questions and comprising several, namely personal characteristics details, history of malaria infection and treatments, type of residence, mobility, self protection, facilities, and access to health services.
Results: Both Iranians and Afghans were familiar with the three typical symptoms of the disease (fever, chills and muscle aches): 67.1% of Iranians and 78% of Afghans were able to name least one of the three typical symptoms. In both groups the majority of subjects were aware that malaria transmission occurs through mosquito bite but there was a significant difference regarding knowledge of malaria transmission (χ2 =142.2, P<0.001). Chi-square test for goodness of fit showed that the distribution of symptom indicators is significantly different between the two groups. For Iranians, the most important source of information about malaria was the health facilities (44.5% of the total) while most Afghans (65.3%) had obtained the information through friends and relatives. In both groups, the mass media had acted as the source of information in only 3.4%. Altogether, 24% of the participants reported the use of mosquito bed nets almost 90% of Afghans and 62% of Iranians said that they did not used bed nets at all. However, the number of Iranians who used bed nets was four times greater than the Afghans who did so.
Conclusions: Although the majority of subjects were familiar with malaria transmission and protection methods, they largely neglected safety precautions. Moreover, it seems that the high prevalence of malaria among Afghans is due to their life style rather than cross-border travel. The study also revealed that Afghan people have poor communication with the local health facilities, a point that must receive special attention in future malaria control programs.
A Mirzazadeh, B Hajarizadeh, B Mesgarpour, A Golozar, K Holakouie Naieni,
Volume 4, Issue 3 (20 2009)
Abstract
Background & Objectives: Recent reports indicated an increase in cutaneous Leishmaniosis (CL) cases. We designed the study in the context of community assessment process to identify and address the major public health related issues by explore the risk map of CL and assessing the environmental risk factors in Kerman.
Methods: All the registered CL in the only referral center for CL from 2002 to 2006, localized on Kerman digital map. The level of data dissemination was townships. Based on data from the national statistics organization, we determined the population and calculated the incidence of CL of each township. Secondly, the highest endemic townships were observed deeply with a specific checklist to determine the environmental risk factors.
Results: 771 cases were included. All the high endemic areas were located in the east part of Kerman. The eastern township, Sarasiyab, with 123 (15.9%) cases was the most infected region. The highest endemic townships were Sarasiyab, Emam and Sarbaz with 54.9, 52.8 and 51.2 cases per 10,000, respectively. Some minor endemic areas such as Shahab, Abouzar and Shahzadeh Mohammad (South and central regions) were going to be disappeared while Shariati, Naseriyeh-Seyedi (North and North-East regions) were the new high-risk townships (P<0.01).
Conclusions: the east and central part of Kerman, were always the high endemic regions. Some other new high-risk areas were also detected. The most environmental factors were the bare lands between the houses, ground passages and the timeworn architecture on the buildings.
M Osooli, Aa Haghdoost, Sh Yarahmadi, Mh Foruzanfar, M Dini, K Holakouie Naieni,
Volume 5, Issue 1 (20 2009)
Abstract
Background and Objectives: The aim of this study was to assess the geographical distribution of Congenital Hypothyroidism (CH) in Iran using Geographic Information System
Methods: The incidence of Congenital Hypothyroidism in each city and province calculated based on national CH screening program and then the map of its distribution was depicted. The spatial distribution of CH was assessed in each city by employing binominal test and Hotspot Analysis. The map of distribution of CH was drawn by ArcGIS version 9.2 software.
Results: The national incidence of CH (including both transient and permanent types) has been estimated 2.2/1000 in screened new borne babies. The distribution of CH seems more or less equally around the country and its spatial variation was not statistically significant. We did not find any specific CH Hot Spot in Iran.
Conclusions: We did not find any particular explanation for high incidence of CH is Iran geographically therefore other explanations for such a high risk in screened neonates should be investigated including the non-environmental factors and factors related to quality of screening program in Iran.
J Poorolajal, P Tajik, B Yazdizadeh, M Sehat, Ar Salehi, M Rezaei, K Holakouie Naieni,
Volume 5, Issue 1 (20 2009)
Abstract
Background & Objectives: Observational studies are not often reported in detail and clear enough, so that assessment of the strengths and weaknesses of these studies is not straightforward. To improve the reporting of observational studies, a checklist of items called ‘Strengthening the Reporting of Observational Studies in Epidemiology’ (STROBE) was developed by some experts in October 2007. The aim of this study was to assess the quality of reporting of observational studies before STROBE statement.
Methods: We included randomly sixty cohort studies published in six important international journals until October 2007. Then, we used STROBE checklist to assess the strengths and weaknesses of these included studies.
Results: On average, more than 81% (95% CI: 77%-87%) of included studies pointed to 43 items of aim of this study. The most reported (100%) items were "scientific background" and "rationale for the investigation" and the less reported (30%) item was “flow chart”.
Conclusions: Although, the quality of reported cohort studies’ results was acceptable, the type of study, journal and date of publication could influence on the quality of observational studies.
K Holakouie Naieni, A Ostovar, A Danesh, S Sadjedinejad, L Ghalichee, Gh Moradi, Ma Mansournia, Ss Hashemi Nazari,
Volume 6, Issue 2 (22 2010)
Abstract
Background and objective: The nested case-control study has become popular as an efficient alternative to the full-cohort design. This study compares the results of a nested case-control analysis approach with the full cohort analysis.
Methods: A cohort of 276 subjects (new cases from a TB registry) was used for this study. Cox Regression model was used for the full cohort analysis. In order to do the nested case-control analysis, for each death, three random controls were selected from those who did not suffer from the outcome at the time of the outcome took place. Case control data was analyzed by the conditional logistic regression model.
Results: Results from both cohort and nested case-control analyses show that treatment group is the only variable that affects on the outcome. Gender, place of residence, and age has no effect on the outcome. For binary exposure variables with trivial effects (e.g. Gender and place of residence), the relative efficiency of nested case-control study design is approximately 75%.
Conclusion: Results of this study show that nested case-control study is not only an easy and cost-effective method for data analysis but also is as robust as cohort analysis in rate ratio and its variance estimation.
J Karimi, K Holakouie Naieni, E Ahmadnezhad,
Volume 8, Issue 1 (20 2012)
Abstract
Background & Objectives: Community
assessment process is the foundation for developing the basis for effective
community health strategies. The aim of this study was providing a framework
for comprehensive and participatory community assessment in Shahin-Shar,
Isfahan, Iran.
Methods: This assessment performed in Shahin
Shar city based on some experiences of Community Medicine and Epidemiology and
Biostatistics departments of Tehran University of medical sciences since 1989
and North Carolina Community Assessment Guide Book (2002). The community assessment
team included wide ranges of key stakeholders and local people. Our community
assessment team has three levels of participants: An advisory group, a work
group and a project facilitator. Observation, interview, focus group discussion
and summary list of health resources used for data collection. The map of asset
was also provided. We reported data to community and Hanlon method -based on
magnitude of the problem, seriousness of the consequences and feasibility of
correcting- was used for selecting health priorities.
Results: Drug abuse, smoking among adults and
depression were the important health priorities. After creating community
assessment document, Based on the risk factors that contribute to each problem,
the health action plans were developed.
Conclusion: The results of this study showed
that community assessment could be the foundation for improving and promoting
the health of community members. It could be the basis for effective community
health strategies in Iran .
Normal
0
S Asgharzadeh, K Holakouie Naieni, A Ardalan, E Ahmadnezhad , S Zaeri,
Volume 8, Issue 1 (20 2012)
Abstract
Background & Objectives: Earthquakes cause thousands of deaths and injuries worldwide every year.
Islamic Republic of Iran has a deadly history of earthquakes. The aim of this
study is to describe injuries rate, causes of injuries, structural
characteristics of buildings and occupant actions immediately after earthquake
in Damghan in 2010.
Methods: This case-study was conducted one week after occurring the
earthquake in five villages of Damghan city in Iran. We used the Physical
Injuries Assessment Questionnaire which was particularly designed for injuries
after earthquakes. Also for acquiring information about region and amount of
losses, some interviews was conduct with local authorities.
Results: Four death and fifty six injuries occurred in five villages of
Damghan city. There were three types of injuries including superficial injuries
(50%), contusions (35%) and fractures (10%). The findings of this study indicating building
structural failure (87.4%), nonstructural factors (7.1%) and trapping (5.3%) seems
the most possible cause of injuries in this region.
Conclusion: This study showed that the building structural failure is the main cause of
injuries (87.4%). Increasing structural
resistance of building especially in village regions and education about
earthquake preparedness should encourage in order decreasing the total number
of people affected by earthquake.
Normal
Mr Farokhi Noori, K Holakouie Naieni, Aa Haghdoost, A Emami,
Volume 8, Issue 1 (20 2012)
Abstract
Background
& Objectives: The economic costs of cancer care are a burden to people
diagnosed with cancer, their families, and society as a whole. Despite several
studies about cancer in Iran, there is paucity of cost analysis in this area.
The aim of this study was to estimate the cost of cancer subgroups in Kerman,
Iran.
Methods: A retrospective analysis
of administrative 223 diagnosed patients with different cancers was undertaken.
Results: Monthly average cost of
cancer was 3.32 thousand US dollars (average exchange rate in 2010: 10308
Iranian rials= 1 US dollar). Breast cancer, with an average 4.30 thousand US
dollars per month was the most expensive and cancer of male reproductive organs
with average2.16 thousand US dollars were the cheapest cancer.
The
hidden monthly cost of all types of cancer was 2 thousand US dollars, breast
cancer, lung, blood and female reproductive organs were costly and brain and
peripheral nerves cancer, gastrointestinal tract and prostate were medium and
male reproductive organs cancer was less costly.
Conclusion: Economically impact and burden of cancer should be an
important consideration in the health policy making in Iranian health service
system.
Normal
0
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.
Gh Moradi, M Sehat, Aa Haghdoost, M Karami, R Chaman, Z Khazaei, E Goudarzi, M Asadi Lari, E Mostafavi, K Holakouie Naieni ,
Volume 12, Issue 0 (Special Issue Vol.12 2017)
Abstract
Background and Objectives: Epidemiology is a tool and a field of science which provides evidences necessary to make decisions. It is known as one of the basic sciences of public health. This study aimed to identify strategies for the promotion of epidemiology by Iranian Epidemiological Association so that people graduated in this field would become able to play an effective and positive role in different parts of the country.
Methods: This study was conducted in 2015. The views and opinions of the members of Iranian Epidemiological Association were collected by email. The views of the members were classified using qualitative methods.
Results: The results of this study helped to identify some of the strategies for the promotion of the position of epidemiology in Iran’s health system by the members of Iranian Epidemiological Association.
Conclusion: Iranian Epidemiological Association can play a more effective role in the promotion of epidemiology in the health system. Effective communication with the members, holding group meetings, advocacy and negotiation, reporting the activities of the Association continuously, identifying national problems and seeking solutions are some of the strategies that can help to enhance the role of the Association and promote the position of epidemiologists in Iran.
K Holakouie Naieni , Ma Mansournia, Mh Panahi, A Elduma, Sh Nematollahi ,
Volume 12, Issue 3 (Vol 12, No 3 2016)
Abstract
Case-Cohort and nested case-control designs are the most well-known and cost-effective derivatives of prospective studies. Due to the popularity of these designs in recent years, the aim of this study is to provide a comprehensive and up-to-date description of them with respect to methodological issues such as sampling scheme, effect measure estimation, and analysis strategies. Overall, random sampling of controls in case-cohort and matching for time in nested design are considered their hallmarks. Eventually, decision on a better design depends on study objectives, sub-cohort selection, case and control determination, and method of data collection. It should be kept in mind that any particular study requires unique elaboration and delicate examination to choose from the designs.
Gh Moradi, M Sehat, Aa Haghdoost, M Karami, R Chaman, Z Khazaei, E Goudarzi, M Asadi Lari, E Mostafavi, K Holakouie Naieni,
Volume 13, Issue 2 (Vol.13, No.2, Summer 2017)
Abstract
Background and objective: Epidemiology is a tool and a field of Medical sciences which provides evidences necessary to make scientific decisions. This study aimed to identify strategies for the promotion of the epidemiology by Iranian Epidemiological Association (IrEA) so that people graduated in this field would become able to play an effective and positive role in different parts of the country.
Methods: This study was conducted in 2015. The views and opinions of the members of IrEA were collected by email. The views of the members were classified using qualitative methods.
Results: The results of this study helped to identify some of the strategies for the promotion of the position of epidemiology in Iran health system by the members of IrEA.
Conclusion: IrEA can play a more effective role in the promotion of this field of study in the health system. Effective communication with the members, holding group meetings, advocacy and negotiation, reporting the activities of the association continuously, identifying national problems and seeking solutions are some of the strategies that can help to enhance the role of the community and promote the position of epidemiologists in Iran.
M Saatchi, Mh Panahi, A Ashraf Mozafari, M Sahebkar, A Azarpakan, V Baigi, K Holakouie Naieni ,
Volume 13, Issue 2 (Vol.13, No.2, Summer 2017)
Abstract
Background and Objectives: The awareness of the health knowledge level of a population and the weaknesses in people's health literacy is essential for educational planning. This community assessment study, which was conducted to develop an appropriate infrastructure for educational planning, examined the level of health literacy in Hormuz Island’s residents.
Methods: This analytical cross-sectional study was done on a sample of people over 18 years in Hormuz Island. Data were collected by two questionnaires which included basic information such as age, sex, marital status, age at marriage, and also indirect questions regarding the economic status of the individuals. Also, the Short Test of Functional Health Literacy in Adult (S-TOFLHA) was used to measure the patient's ability to read and understand health-related concepts. The linear regression analysis was performed.
Results: The data provided by 486 individuals were analyzed in this study. The mean age was 39 years (18-79) and 48% were female. The mean household size was 4.5 people. The mean score of the subjects was 58.06. Thirty-five percent had less-than-sufficient health literacy, 18.21% had sufficient health literacy, 12.29% had insufficient, and 7.14% had higher health literacy. Education level (P<0.001), economic status (P<0.001), and age (P<0.001) were the main variables influencing health literacy in the sample.
Conclusion: Community assessment showed that older age groups did not have sufficient health literacy. Low economic status accompanied by low levels of literacy makes individuals less motivated to improve their health knowledge and, consequently, leads to low levels of health literacy in Hormuz.
S Holakouie Naieni , Sh Holakouie Naieni , K Holakouie Naieni ,
Volume 13, Issue 4 (VOl 13, No.4, Winter 2018)
Abstract
Background and Objectives: Food-borne diseases are serious problems in public health. Since the outbreaks can be prevented, we need to take action in the prevention of such infection. On 28 June, 2014 cases of gastroenteritis occurred in students living in dormitories of a medical university; therefore, this study aimed to investigate the outbreak of gastroenteritis to determine its risk factors.
Methods: This case - control study was performed to evaluate students. A total of 70 patients with gastroenteritis in the outbreak of 16 June 2014 were selected. A total of 70 students without any gastrointestinal complaints in the weeks before the outbreak were also selected as the control group using convenient sampling.
Results: The results of this study provided 4 main themes (challenges of access to the data of the surveillance system, challenges of access to the data of national surveys and ordered projects, challenges of access to the data of electronic health records, and challenges of access to confidential data) and 15 sub-themes.
Conclusion: According to the results, having lunch prepared by the university on 16 June was the likely cause of the outbreak on 17 June in student living in dormitories. Hygiene in cooking and food storage, especially in public places such as schools and universities are important in the prevention of food-borne outbreaks.
N Mohammadsalehi, K Holakouie Naieni , B Eshrati, A Mohammadbeigi, E Ahmadnezhad, Sh Arsangjang,
Volume 14, Issue 1 (Vol 14, No 1, 2018)
Abstract
Background and Objectives: Cholera is one of the public health ththat has received attention due to climate change and weather variables. In the current study, the trend of cholera and its epidemics was assessed in the last 50 years in Iran based on climatic variables.
Methods: In a retrospective cohort study, all cholera cases and epidemics of the disease in the country (Iran) were assessed using the registry system of the Center for Communicable Disease Control in the Ministry of Health and Medical education (MOH&ME) from 1964 to 2014. Furthermore, the incidence of cholera was evaluated in 2005-2014 by province. The temperature and rainfall data were obtained from the provincial Meteorological Organization. The correlation coefficient test and mixed-effects binomial regression model were used for data analysis.
Results: A significant positive correlation was found between cholera and rainfall (r = 0.168, P = 0.008). A one-millimeter increase in rainfall increased the incidence of cholera by 10.9% but temperature changes had no effect on cholera outbreaks. The incidence of cholera declined significantly by 14.7% each year from 2005 to 2014. The highest incidence of cholera was reported in Sistan-Baluchestan, Qom, Tehran, Kerman and Hormozgan provinces in a descending order.
Conclusion: In recent years, the the overall incidence of cholera has decreased. The occurrence of cholera is an outcome of rainfall in the previous year. Therefore, increased rainfall increases the number of cholera cases in the next year. However, temperature changes are not related to cholera outbreaks.
