Main Article Content
The aim of this cross-sectional study is to develop a measurement for Health Literacy towards Dietary Supplements for Beauty (HLDS) based on Sørensen’s health literacy concept. The measurement is applied to assess the health literacy of undergraduate students. The Thai undergraduate students participating in the study are in years 1–4 at a university in Bangkok. Data collection is performed via a self-administered questionnaire. The following techniques are used in this study to investigate the construct validity of the measurement: confirmatory factor analysis, convergent validity, and discriminant validity. The statistical software Analysis of Moment Structures (AMOS) version 20 is used. To develop the HLDS measurement, 31 items are derived, divided into four dimensions: Access (9 items), Understand (10 items), Appraise (4 items), and Apply (7 items). The findings revealed high discrimination values (r = 0.54-0.94) with Cronbach’s alpha coefficients ranging from good to very good (α = 0.81-0.91). The measurement model of the HLDS fits well with the empirical data.
The convergent validity meets the acceptance criteria, while the discriminant validity exhibits values slightly higher than the criteria (r=0.74-0.94). Accordingly, the HLDS measurement is considered to be valid, reliable, and applicable for applying to undergraduate students. However, the addition of the social skill assessment is required to achieve a more comprehensive measurement. This skill is recognized within the process of HLDS development but with some limitations. Thus, it is recommended that this dimension be added for future study.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Vinijchaiyanun C, Vichitthamaros P. Factors affecting weight control dietary supplements consumption of people in Bangkok. WMS Journal of Management. 2017;6(1):84-90
Vitamins and dietary supplements in Thailand [Internet]. [Cited 2020 December 22]. Available from: https://www.marketresearch.com/Euromonitor-International-v746/ Vitamins-Dietary-Supplements-Thailand-10375992/
MATICHON ONLINE. (2018). Revelation Over 40% of Dietary Supplements in the Market Are Fake and Ten Thousand Illegal Factories Found [Internet]. [Cited 2018 April 29]. Available from: Available from: https://www.matichon.co.th/news-monitor/news_930684
MGR Online. Magic Skin Lesson Don’t be fooled just because they have an FDA number Don’t be fooled just because of stars review [Internet]. [Cited 2019 June 26]. Available from: https:// mgronline. com/daily/detail/9610000041403
R Araujo J, Martel F. Sibutramine effects on central mechanisms regulating energy homeostasis. Curr Neuropharmacol. 2012;10(1):49-52.
MGR Online. Cautionary tale - Grade 10 female student ate diet supplements for 3 months and had kidney failure, eventually died because of blood infection [Internet]. [Cited 2020 January 14]. Available from: https://mgronline.com/local/detail/9620000085968
Thairath. FDA is strict – product reviews, cosmetic-supplements. Lyn already caused the death of 4 people. [Internet]. [Cited 2019 May 5]. Available from: https://www.thairath.co.th /news/local/bangkok/1269661
World Health Organization. Health literacy and health behaviour. [Internet]. [Cited 2020 January 24]. Available from: https://www.who.int/teams/ health-promotion/enhanced-wellbeing/ seventh-global-conference/health-literacy
Sørensen K, Van den Broucke S, Pelikan JM, Fullam J, Doyle G, Slonska Z, et al. Measuring health literacy in populations: illuminating the design and development process of the European Health Literacy Survey Questionnaire (HLS-EU-Q). BMCpublic health. 2013;13(1):1-10.
Morrison AK, Chanmugathas R, Schapira MM, Gorelick MH, Hoffmann RG, Brousseau DC. Caregiver low health literacy and nonurgent use of the pediatric emergency department for febrile illness. Acad. Pediatr. 2014; 14(5):505-9.
Johri M, Subramanian S, Sylvestre M-P, Dudeja S, Chandra D, Koné GK, et al. Association between maternal health literacy and child vaccination in India: a cross-sectional study. J Epidemiol Community Health. 2015;69:849–57.
Lupattelli A, Picinardi M, Einarson A, Nordeng H. Health literacy and its association with perception of teratogenic risks and health behavior during pregnancy. Patient Educ Couns. 2014;96(2):171-8.
Intarakamhang U, Khumthong T. Measurement development assessment of health literacy and unwanted pregnancy prevention behavior for Thai female adolescents. J Public Health Nursing. 2017;31:19-38. (in Thai)
Thipwong A, Numphol J. The associations between health literacy related to obesity and health behavior eating and exercise in over nutritional children. J Public Health Nursing. 2014;28(2):1-11. (in Thai)
Liu HZ, Lyu X, Liu Y, Han Z, Ye J. Validation of the Chinese version of the short‐form Health literacy in dentistry (HeLD) scale. Community Dent Oral Epidemiol. 2021;49:550-556.
Intarakamhang U, Sepsuk P, Suwanwong C, Intarakamhang P. Validity of environmental health literacy scale for homebound and bedbound elder of village health volunteer. J Med Assoc Thai. 2020;103(11):1200-7.
Jackson DL. Revisiting sample size and number of parameter estimates: Some support for the N: q hypothesis. Struct Equ Modeling. 2003;10(1):128-41.
Kline RB. Principles and practice of structural equation modeling. 4th ed. New York, NY: Guilford Press. 2016.
Hair Jr JF, Black WC, Babin BJ, Anderson RE. Multivariate data analysis. 7th ed. Upper Saddle River, NJ: Prentice Hall. 2010.
Wang J, Wang X. Structural equation modelling applications using Mplus. Hoboken, NJ: John Wiley & Sons. 2012.
Lu C-S. Strategic groups in Taiwanese liner shipping. Marit Policy Manag. 1999;26(1):1-26.
Swisher LL, Beckstead JW, Bebeau MJ. Factor analysis as a tool for survey analysis using a professional role orientation inventory as an example. PT. 2004;84(9):784-99.
Diamantopoulos A, Siguaw JA, Siguaw JA. Introducing LISREL. 1st ed. London: Sage Publications. 2000.