Health literacy in dietary supplement use among working-age groups: systematic review and meta-analysis

Causal Model of Herb Use Behavior Among Working-age Adults in Thailand

OBJECTIVES

This study developed a causal relationship model of herb use from observational data and analyzed the direct and indirect effects of herb use on health according to the model.

METHODS

A cross-sectional study was conducted with 400 participants aged 26-59 years, selected through multistage random sampling. The instruments used for data collection included demographic information, herb use, health literacy (HL), perceived social support, societal values, and attitudes toward herb use. The conceptual model, hypothesized based on prior evidence, was tested using confirmatory factor analysis through structural equation modeling. Path coefficients were estimated using the maximum likelihood method.

RESULTS

The final model utilized empirical data, which showed that perceived social support had the most significant impact on herb use. This was followed by HL, positive attitudes toward herbal remedies, and societal values, with coefficients of 0.31, 0.18, and 0.16, respectively. When analyzing variables that indirectly affected herb use, it was clear that positive attitudes, perceived social support, and societal values significantly influenced herb use through HL, with influence coefficients of 0.08, 0.16, and 0.04, respectively. Together, these variables accounted for 68% of the variance in herb use.

CONCLUSIONS

The findings from this study can be utilized to develop and implement strategies that guide the use of herbal products, ultimately aiming to improve human health.

Health literacy, worry about unmet needs for medical care, and psychological well-being among older Chinese adults

AIM

This study aims to examine the relationship between older adults' health literacy and their psychological well-being and the role of worry about future unmet needs for medical care in mediating this relationship.

METHODS

We adopted a sample of 965 older Chinese people aged 60+ (49.74% female) from the 2021 Chinese General Social Survey. A series of structural equation models (SEMs) were performed. Health literacy was measured by three items regarding older people's ability to understand medical professionals, ask them questions, and read medical instructions. A single-item question was adopted to measure participants' worry about unmet needs for future medical care. Psychological well-being was measured by three items regarding emotional problems and depressed or anxious mood in the past 4 weeks.

RESULTS

Worry about future unmet needs for medical care mediates the relationship between lack of health literacy and Chinese older people's psychological well-being. The indirect effect accounts for 22.3% of the total effect. The SEM model has a satisfactory model fit (goodness of fit index = 1.000, comparative fit index = 0.999, Tucker-Lewis index = 0.997, root mean square error of approximation = 0.009, standardized root mean square residual = 0.023, chi-square test = 50.96,  P = 0.321).

CONCLUSIONS

The findings of this study underscore the importance of improving communication quality between healthcare providers and older adults. Clinical interventions that promote health literacy and address worries about unmet needs for medical services may benefit older adults. Geriatr Gerontol Int 2024; 24: 202-207.

Effects of Social Support and Loneliness on the Irrational Consumption Tendencies of Healthcare Products among the Elderly: A Structural Equation Model

BACKGROUND

In recent years, with the development of the social economy and an improvement in health consciousness, the levels of demand and consumption for healthcare products have been increasing rapidly among the elderly. However, the irrational consumption of healthcare products has caused widespread concern, as it can generate economic losses and have negative effects on psychological health. Therefore, it is critical to identify the variables that can reduce tendencies toward irrational consumption in the area of healthcare products. This study aimed to explore the relationship between the irrational consumption tendencies of healthcare products, social support, and loneliness among elderly people in Hangzhou, China.

METHODS

In 2021, a cross-sectional survey involving 485 elderly people from three districts in Hangzhou, China, was conducted. Descriptive statistics were calculated for socioeconomic status and demographic characteristics, level of loneliness, social support, and irrational consumption tendencies. A structural equation model was used to test the impact of social support on the irrational consumption tendencies of healthcare products among the elderly and to explore the mediating effects of loneliness.

RESULTS

The findings reveal that the average levels of social support and loneliness among the elderly were 30.63 points (total = 44 points) and 6.88 points (15 points), respectively. The average scores of the four subscales of irrational consumption tendencies, which were named susceptibility to persuasion, interpersonal influences, pursuit of added value, and fears of aging were 2.48, 2.93, 2.48, and 3.17 points (5 points), respectively. Social support had a significant effect on irrational consumption tendencies, and loneliness played a partial mediating role between social support and irrational consumption tendencies.

CONCLUSIONS

A relationship model was constructed to examine the association between loneliness, social support, and irrational consumption tendencies among older people in relation to healthcare products. From a social support and psychological perspective, advice and countermeasures are proposed to prevent the irrational consumption of healthcare products among older people.