Intarakamhang Ungsinun, Prasittichok Pitchada
Behavioral Science Research Institute, Srinakharinwirot University, Bangkok, Thailand.
Heliyon. 2022 Nov 11;8(11):e11535. doi: 10.1016/j.heliyon.2022.e11535. eCollection 2022 Nov.
Sufficient health behavior (SHB) and health literacy in dietary supplement use (HL-DSU) are the key determinants of health status. However, the link between HL-DSU and SHB is not fully understood. Therefore, the objective of this research was to investigate the model and identify the size of its effect on HL-DSU and SHB among adults of working age.
The study employed a cross-sectional survey design, with cluster random sampling used for the selection of 696 working-age adults ranging from 20-59 years. Data on their SHB, HL-DSU, awareness of dietary supplement advertising (DSA), and social support were collected from August to October 2021 through questionnaires employing a 5-point rating scale. Content validity was determined using item-objective congruence (IOC) values ranging from 0.6 to 1.0 obtained for each item on the questionnaire. The Cronbach's alpha values ranging from 0.93 to 0.96 indicated reliability, while the independent t-test, descriptive analysis, and structural equation modeling (SEM) were performed.
SHB is defined as the health-beneficial behaviors based on a balanced lifestyle, utilizing conceptual approaches resulting in positive health outcomes relating to fundamental goals in the use of dietary supplements and other contexts emphasizing sufficiency. The causal model was found to fit the empirical data with an acceptable goodness-of-fit value. The findings indicate that social support, awareness of DSA, and HL-DSU directly affect SHB (Beta of 0.33, 0.20, and 0.13, respectively, p < .05) and could predict 34% of SHB overall. HL-DSU is shown to be significantly and directly impacted by social support and awareness of DSA, with influence coefficients of 0.36 and 0.57, respectively. The variance of HL-DSU can be predicted by these two factors as 67%.
The establishment of campaign activities to promote awareness regarding the advantage and disadvantages, as well as media literacy of supplementary food products in health centers and communities, should be the focus of healthcare providers.
充足的健康行为（SHB）和膳食补充剂使用方面的健康素养（HL-DSU）是健康状况的关键决定因素。然而，HL-DSU与SHB之间的联系尚未完全明晰。因此，本研究的目的是探究该模型，并确定其对工作年龄成年人的HL-DSU和SHB的影响大小。
本研究采用横断面调查设计，通过整群随机抽样选取了696名年龄在20至59岁之间的工作年龄成年人。2021年8月至10月，通过采用5分制评分量表的问卷收集了他们关于SHB、HL-DSU、膳食补充剂广告认知（DSA）和社会支持的数据。使用问卷中各项目获得的0.6至1.0的项目-目标一致性（IOC）值来确定内容效度。克朗巴哈系数值在0.93至0.96之间表明具有可靠性，同时进行了独立样本t检验、描述性分析和结构方程建模（SEM）。
SHB被定义为基于平衡生活方式的有益健康行为，采用概念方法得出与使用膳食补充剂及其他强调充足性的背景下的基本目标相关的积极健康结果。发现因果模型与实证数据拟合良好，拟合度值可接受。研究结果表明，社会支持、DSA认知和HL-DSU直接影响SHB（β分别为0.33、0.20和0.13，p <.05），总体上可预测34%的SHB。HL-DSU被证明受到社会支持和DSA认知的显著直接影响，影响系数分别为0.36和0.57。这两个因素可预测HL-DSU的方差为67%。
医疗保健提供者应将重点放在开展宣传活动上，以提高健康中心和社区对补充食品产品的优缺点以及媒体素养的认识。
