Journal of School of Public Health and

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Background and Aim: The present study aimed to determine the stages of changes and cognitive and behavioral processes (Transtheorical model) in the use of nutrients in overweight middle-aged women.
Materials and Methods: The present study was a descriptive-analytic. The research sample consisted of 281 middle-aged women with overweight referring to comprehensive health centers in Isfahan. Personal characteristics, stage of change and behavior and cognitive behavioral processes, and FFQ questionnaire (168-item) were completed by Questioning, and then the information entered the N4 and SPSS 18 software, and information was analyzed using descriptive and analytical tests.
Results: 57.7% of the people were inactive (pre-thinking, thinking, preparation) and 42.3% of them were in active phase. There was a significant difference between the different stages of change and the use of behavior change processes (p=0.001) And Benfrown's test shows the increasing use of cognitive and behavioral processes during the stage of change in use of nutrients (p<0.001).
Conclusion: The difference in the mean of changes processes during the stage of change show the impact of these processes on the nutritional individual's behavior, which is recommended to use stage of change and behavioral change processes for education nutrition behavioral.

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Background and Aim: The practice of breastfeeding among mothers is affected by their knowledge of, and attitude to, it. Therefore, this study aimed to determine the effect of intervention, using the transtheoretical model (TTM), on the knowledge, attitude and practice of exclusive breastfeeding among pregnant women in the third trimester referred to Golestan University of Medical Sciences in hospitals in 2021.
Materials and Methods: This quasi-experimental intervention was conducted on 120 pregnant women in the third trimester of pregnancy randomly assigned to an intervention (n = 60) or a control (n = 60) group using the permuted block randomization. The data collection tools were a two-part questionnaire to collect data on demographic and obstetric characteristics and a researcher-made questionnaire based on the TTM. Due to the coronavirus Epidemic the education was conducted partly face-to face in five 30-minute sessions three times a week observing the health protocols and partly virtually via WhatsApp and Telegram messenger (audio file, video tutorial, electronic pamphlets and posters). The data collected one and six months after the intervention were analyzed using the SPSS software version 16, the tests being descriptive and inferential tests.
Results: The mean scores of knowledge, attitude, practice and the TTM constructs were not statistically significant between the intervention and control groups before the education intervention. One and six months after the intervention the mean scores of knowledge, attitude and practice and the TTM constructs, as well as perceived barriers and benefits in decision-making and self-efficacy were found to be significantly different between the intervention and control groups (p< 0.001).
Conclusion: Based on the findings it seems that breastfeeding education of pregnant women based on the transtheoretical model can improve their knowledge, attitude and practice as regards exclusive breastfeeding.
 

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Background and Aim: Cardiovascular diseases are the most common cause of death in most countries of the world, hypertension being the most important cause of disability. The aim of this study conducted in 2020-2021 was to determine the effect of educational intervention on the nutritional knowledge, illness perception and dietary adherence in hypertensive middle aged women based on the transtheoretical model (TTM).
Materials and Methods: This was a quasi-experimental study on middle-aged women (30-59 years old) suffering from hypertension referred to the  health centers and health bases in the 21st district of Tehran in 2020-2021. A total of 164 subjects were randomly assigned to the intervention (n=82) or control (n=82) group by randomized quadruple blocks. A multifaceted questionnaire was completed for both the control and intervention groups and their blood pressure measured. This was followed by  a one-month virtual education for the intervention group in the form of a WhatsApp group and designing and developing fifty-six podcasts and educational clips with a maximum duration of four minutes based on the transtheoretical model constructs. After a lapse of one and six months both groups completed the questionnaire again and their blood pressure was measured. Descriptive statistics and general linear model were used for data analysis using the SPSS version 25 (p<0.05).
Results: Before the intervention the mean age of the subjects was 50.16 years and their systolic and diastolic blood pressures were 1.35 and 1.84 mmHg, respectively, and there were no statistically significantly differences between the two groups as regards contextual variables, constructs of nutritional awareness, disease perception, diet adherence, systolic and diastolic blood pressures and body mass index (as an ananthropometric index) and transtheoretical model constructs. Data one month after the intervention revealed significant differences (p<0/001) between the two groups (p <0/001) as regards the constructs of nutritional awareness, disease perception, self-sufficiency construct of the transtheoretical model and systolic blood pressure. Six months after the intervention significant differences were observed between the two groups as regatds  nutritional awareness constructs, disease perception (p<0.007), diet adherence (p<0.001), stages of change constructs (p<0.001) and self-sufficiency (p<0.001) of the transtheoretical model.
Conclusion: The results of this study show that educational intervention based on the transtheoretical model in middle-aged women with hypertension can increase their nutritional knowledge, illness perception, self-sufficiency, self-adequacy and diet adherence.