Abstract
Background
The purpose of this study was to develop and evaluate the validity and reliability of a healthy diet and physical activity assessment tool among patients one year after bariatric surgery based on Health Action Process Approach.
Methods
We compiled 53 items based on healthy diet and physical activity behaviors among patients undergone bariatric surgery through reviewing the literature. Using quantitative and qualitative methods, and a panel of experts, we evaluated the face and content validities of the tool. The reliability was evaluated by Intra-class correlation coefficient and Cronbach’s alpha.
Results
The content validity ratio and the content validity index were 0.62 and 0.79, respectively. Exploratory factor analysis showed seven factors, including risk perception, outcome expectations, task self-efficacy, coping, recovery self-efficacy, action planning, coping planning, and behavioral intentions. The Intra-class correlation coefficient was between 0.8 and 0.91; and Cronbach’s alpha for different constructs was between 0.8 and 0.95.
Conclusion
The findings showed that the constructs of the Health Action Process Approach tool regarding healthy diet and physical activity had adequate validity and reliability in bariatric surgery patients.
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Data availability
The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request.
Notes
Body Mass Index.
Abbreviations
- BMI:
-
Body Mass Index
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Acknowledgements
This study was part of a Ph.D. thesis on Health Education and Health Promotion at Tehran University of Medical Sciences, which was conducted among patients registered in Tehran Obesity Treatment Study (TOTS). The researchers are grateful to the TOTS; and all those who participated in this study. The collaboration of all experts who benefited the research team from their valuable opinions is also appreciated.
Funding
This study was conducted with the financial support of Tehran University of Medical Sciences, The University monitored and supervised the study.
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MM, ESh, MB, ZM, YS, and MY have participated in the conception and design of the study. MM collected the data, and ESh helped in data collection. MM, YS, MY analyzed the data. MM, ESh, ZM, and MB have drafted the manuscript, and all authors participated in the revision of the manuscript. All authors have read and approved the final manuscript.
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The Ethics Committee of Tehran University of Medical Sciences (IR.TUMS.SPH.REC.1400.230) approved this study and the study was carried out in accordance with the Helsinki Declaration. Ethical considerations were taken into account during data collection and analysis. The confidentiality of the participants was protected, and no personal information could be identified in any publications arising from the study. Participants were informed that their participation is entirely voluntary. Informed consent was obtained from all the respondents included in the study.
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Maghsoodlo, M., Shakibazadeh, E., Mokhtary, Z. et al. Development and validation of a healthy diet and physical activity tool based on health action process approach among patients undergone bariatric surgery. J Diabetes Metab Disord (2024). https://doi.org/10.1007/s40200-023-01380-5
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DOI: https://doi.org/10.1007/s40200-023-01380-5