Journal of School of Public Health and

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Malaria has been prevalent for a long time in Iran. About 1000 years ago, the Iranian physicians such as Avicenna (979-1037) were acquainted to the clinical feature of the disease. The scientific study of malaria in Iran was started by Latycheve in 1921. Later on up to 1944, malaria have been studied by some Iranian and foreign investigators and it was found hyper-endemic in some littoral parts of Caspian Sea in the north and Persian Golf in the south and hypo-or meso-endemic in the central parts of the country. From 1941 to 1948 the anti-malaria campaign were using quinine for chemotherapy and chemoprophylaxis as well as anti-larval measures for vector control. From 1949 DDT was used for the control of the Anopheles vectors which were determined at that time as A.maculipennis and A.superpictus in the north and some central parts of Iran, A. sacharovi in the west and A.stephensi and A. culicifacies in the south parts of the country. At the present time A.d&aposthali and A.fluviatilis are also considered as malaria vectors and A.pulcherrimus as a suspected vector in the south parts of Iran.
Spraying (using DDT) and malaria surveillance (case finding and treatment) caused a great reduction in malaria incidence in the malarious areas, particularly in the north and central parts of the country. The Institute of Malariology was established in the Department of Medical Parasitology, Medical School of Tehran University for training and research works on malaria in 1952.Malaria Eradication Programme (MEP) was recommended by the World Health Organization in 1956 and actually started in 1957 in Iran under General Office of Malaria Eradication (GOME) in the Ministry of Health.
Anti-malaria campaign in MEP during 1957-1971 caused interruption of transmission of malaria in the north parts of Zagross mountains, approximately, half north parts of Iran, and reduced, greatly, the incidence of the disease in the south parts of Iran which were considered as problem or refractory areas.
In 1973, GOME became a division of CDC in Ministry of Health and this integration caused some standstill in the activities of MEP. Thus, the incidence of malaria increased in the refractory areas in the south as well as in consolidation areas in the north parts of the country and the total diagnosed cases of malaria in Iran raised from less than 35,000 to approximately 100,000 cases per year. Therefore, the Ministry of Health strengthened the MEP again. Actually, from 1980 the anti-malaria campaign from MEP changed to malaria control programme , because in the refractory areas due to some behaviors or resistance of vectors to insecticides and, partly, due to the resistance of P.falciparum to chloroquine at RI & RII levels, the interruption of transmission was not possible. However, there was about 80% reduction of annual malaria incidence as well as percentage of P.falciparum during the recent decade. The prevalent species of Plasmodia are P.vivax & P.falciparum in the malarious areas of south and P.vivax in the north parts of Iran. P.malariae is rarely found at present time.

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The start of this survey, 588 students (294 in either area) were selected randomly but the ultimate size of the sample was increased to 905, allowing for a 35% omission rate. Anthropometric measurements and stool examinations were performed. Questionnaires dealing with socioeconomic status were completed through interviews with mothers. We also carried out blood tests on a subsample of 180 individuals (1/5 of the the original sample).The results of the study were as follows:In Area 1:4.3% and 15% of the subjects showed evidence of anemia and parasites, respectively.Th mean hemoglobin and hematocrit concentrations were 13.46 g/dland40%.Anthropometric assessment revealed rates of 8.6% and 1.3% for severe wasting and obesity, and 11.9% for severe stunting. Gauging the weight-for-age index on standard growth charts, 13.1% of the subjects had severe wasting and 14.4% suffered from severe stunting and based on BMI, 21.3% were severely malnourished.ln Area 2:5.8% and 13% of the subjects suffered from anemia and parasites, respectively.Mean hemoglobin and hematocrit concentrations were 13.05 g/dl and 37.8%.Anthropometric assessment showed that 9% of the subjects had severe wasting, and 1.8% were obese. 11.7% showed severe stunting. On standard growth charts, 12.4% had severe wasting and 15.3% were severely stunted. Judging by the Body Mass Index, 21.6%) of the subject had severe malnutrition.The mean weight, height and BMI in both areas were substandard and the mean weight in Area 1 was lower than in Area 2. Statistical Associations:In Area 1: the following variables showed statistically significant relationships: History of parasite infection in the last year with child's weight for age. Mother's age and history of maternal parasite infection in the fast year with child's height for age.Parasites infection in the last year with BMI.In Area 2: statistically significant relationships were found:Between mother's literacy / mother's job /family income and child's weight for age.Between family income / percentage of income spent on food/ current parasite infection and height for age.Between diseases affecting food intake and BMI.

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Background and Aim: There are no occupational health data concerning the prevalence of mental disorders in Iranian hospital nurses. Such information may be a prerequisite for efficient occupational mental health interventions. The aim of this study was to determine mental health status among shift work hospital nurses.

Materials and Methods: This paper reports the findings of a cross-sectional survey that was part of a larger quasi-experimental study. We selected and evaluated 1195 nurses in 12 general hospitals in Shiraz (capital of Fars Province), using the 28-item version of the General Health Questionnaire (GHQ). We used structured observations in accordance with an occupational health checklist to assess working environment during the work period.

Results: Results indicated that 28.7% of nurses were in poor mental health. Mental disease was more common among females than males (p<0.05). Prevalence rates for anxiety and somatic symptoms were 42.2% and 35.5% respectively. The prevalence of depression was 11.9% and social dysfunction, 79.5%. There was a significant relationship between shift work and anxiety as well as sleep disorders (p< 0.05). Associations were also found between marital status and depression and between gender and social dysfunction (p< 0.001).

Conclusion: Prevalence figures for mental disorders are similar to those from nationwide surveys but it seems that social dysfunction and anxiety disorders are more common in nurses compared to the general population aged 15 and over. More attention must be paid to the health of shift work nurses (especially female staff). This can take the form of shift work health education programs, occupational health counseling, and periodic examinations.

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Background and Aim: To examine the association of diet and the risk of esophageal squamous cell carcinoma (SCC) in Kurdistan province.

Materials and Methods: This was a case-control study including 47 patients with esophageal SCC and 96 healthy controls. Dietary intake was assessed using a valid semi-quantitative food frequency questionnaire. Logistic regression analysis was run to estimate odds ratios and 95% confidence intervals.

Results: The controls had a significantly higher mean body mass index (25.3 vs. 20.4) and a higher level of education than the case group, while the latter had significantly higher records of tobacco consumption and symptomatic gastresophageal reflux. An independent protective effect was observed for the highest tertile of total fruit consumption (OR: 0.13, CI: 0.04-0.45, p-value=0.001). Within the fruits group, a significant inverse association was observed for bananas, kiwis and oranges (P for trends: 0.03, 0.02 and 0.01, respectively). The effect of total vegetable intake on esophageal SCC was not significant (OR: 0.66, CI: 0.23-1.87), although a reduction in risk was observed in the highest tertile of intake. With regard to other food groups we did not find a statistically significant association.

Conclusion: The results of the present study suggest an inverse association only between fruit consumption and esophageal SCC.

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  Background and Aim: Food insecurity is a major public health problem in developing and developed countries , underlying developmental and psychological problems , nutrient deficiencies and chronic diseases . The aim of this study was to determine food security status and factors associated with food insecurity in households with children 4-5 years old under coverage of urban health centers and health houses in Mehriz, Iran.

  Materials and Methods : This cross-sectional study was conducted in 2013 on 500 households with children 4-5 years old under coverage of urban health centers and health houses in Mehriz, Iran. The subjects were selected by cluster sampling. To determine household food security, the USDA 18-item food security questionnaire was used. Economic and socio-cultural status were assessed using a general-information questionnaire. The data obtained were analyzed using the Chi-square and independent t-tests and multiple logistic regression.

  Results: The prevalence of household food insecurity was 39.6% (food insecurity without hunger 23.2%, and moderate and severe food insecurity with hunger 15% and 1.4%, respectively). Food insecurity was negatively correlated with parental education, parental occupational, monthly household income and maternal height ( p <0.008) and positively correlated with maternal age and family size ( p <0.004) . Based on the results of multivariate logistic regression , father's occupation and education level were predictors of food insecurity .

  Conclusion: The prevalence of food insecurity in the population studied is high. Based on the results of this study, promotion of parental education, family job security and improved economic status, and control of family size are essential measures that should taken to improve household food security.

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Background and Aim: The human mental health is a multidimensional and complex issue affected by a wide range of biological, psychological, sociological, economic and cultural factors. Considering the social nature of human life, the purpose of this study was to investigate the relationship between some social variables, e.g., social support, social bond, social trust and social status, and teachers’ mental health.
Materials and Methods: This study was a cross-sectional quantitative survey using a questionnaire to collect. The sample included 373 primary school teachers (first and second grades) in Najafabad, Isfahan, Iran selected in 2020 by multi-stage random sampling.  Data were analyzed using the structural equation modelling technic, with the SPSS-25 and Amos-23 software.
Results: The confirmatory factor analysis of the items showed that they could explain 63.25% of the variance of the teachers' mental health variable, the social support, social status and social trust variables affecting it (0.65, 0.45 and 0.18, respectively), with a confidence interval of 99% and p<0.001. On the whole, the independent variables could explain 76% of the variance of the teachers’ mental health. In addition, moderation analysis showed that in general gender moderates the effects of social variables on the teachers’ mental health, the female gender having stronger effects in these relationships.
Conclusion: The results of this study show that primary school teachers' mental health, which is an individual/private phenomenon, is greatly affected by their quality of social life, some factors such as social support, social status and social trust potentially influencing it. Moreover, this effect is much more pronounced among women than men.        

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Background and Aim: Tobacco use, narcotics, drug abuse, consumption of alcohol, having unsafe sexual relations and other such behaviours are risky behaviors that tend to cause great concerns in families. Parents try to cope with high-risk behaviors through care strategies. The purpose of this research was to determine the typology of strategies for taking care of risky behaviors based on to the family socioeconomic status (SES).
Materials and Methods: This was a quantitative descriptive-correlational research including all the urban families of Tabriz, Iran, from among whom a sample of 384 families was selected by the multi-stage cluster method. Two measurement tools (checklist for high-risk behavior care strategies and a family SES questionnaire) were used to gather data, the one-way analysis of variance (F) test and linear regression being used to determine the relationships between the variables.
Results: The means of strategies for taking care of risky behaviors were significantly different based on the SES of the family, the upper classes adopting a more appropriate (procedural) strategy to take care of children against risky behaviors than the lower classes. Conclusion: Families with a medium and low SES use ineffective care strategies (inefficient and momentary) to cope with risky behaviors. In order to improve the public's health, it is necessary to adopt prevention-based cultural-educational policies to transform ineffective care strategies to procedural strategies.