Understanding Food Insecurity Among Thai Older Women in an Urban Community

Food Insecurity Among Older Adults Living in Low- and Middle-Income Countries: A Scoping Review

BACKGROUND AND OBJECTIVES

Food insecurity is considered an increasing public health problem worldwide with adverse effects, especially among older adults. Although the literature related to food insecurity among older adults in low- and middle-income countries (LMIC) are expanding, little is known about existing patterns and knowledge gaps in these settings. This scoping review aims to provide a comprehensive overview of the current research related to food insecurity among older adults in LMIC.

RESEARCH DESIGN AND METHODS

A systematic search was conducted in November 2021 and revised in July 2022 on six databases using terms related to food insecurity and older adults. Data were extracted, and the emerging themes from the main findings were summarized using a social-ecological model (SEM).

RESULTS

Forty-one studies met the inclusion criteria. Almost half (48.8%) were published in the last 2 years and utilized a quantitative approach (n = 38). Only one study was conducted in a low-income country. Using the SEM, most studies included in this review focused on addressing the relationship between food insecurity with intrapersonal factors.

DISCUSSION AND IMPLICATIONS

Several gaps in the current literature were identified. There is a lack of longitudinal and qualitative studies available on this topic. Also, only 15 LMIC were represented in the literature. A critical point in this review is that only a few studies addressed the relationship between food insecurity and the policy/social structure, institutional, community, and interpersonal levels. These identified gaps can serve as a guide for future research on this topic.

Socio-demographic characteristics associated with the dietary diversity of Thai community-dwelling older people: results from the national health examination survey

Background

Dietary diversity (DD) is an indicator of nutrient intake and is related to health outcomes in older people. Currently, limited research exists regarding factors associated with DD in older people in developing countries, such as Thailand, despite rapid growth in this population. Therefore, this study aims to examine the association between socio-demographic characteristics and DD in Thai older people.

Methods

A cross-sectional study based on the fifth Thai National Health Examination Survey (NHES-V) conducted between 2013 and 2015 was performed. A total of 7,300 nationally representative older participants aged ≥ 60 years were included. The individual-level dietary diversity score (DDS) was assessed as the frequency of consumption of eight food groups using food frequency questionnaires. Each food group was scored from 0 to 4 according to the frequency of consumption. The DDS was calculated as the sum of the scores, ranging from 0 to 32. Socio-demographic characteristics, including age, sex, highest education level, wealth index, living conditions, and residential area, were assessed. Data were analyzed using multiple linear regression and adjusted for complex survey design.

Results

The participants had a mean age of 69.7 (SD 7.6) years. The mean DDS of participants was 18.4 (SD 3.9). In the adjusted model, a higher educational level, a higher wealth index, and living in an urban area were positively associated with DDS, with adjusted β (95% CI) values of 1.37 (1.04, 1.70) for secondary education or higher, 0.81 (0.55, 1.06) for the richest group, and 0.24 (0.10, 0.44) for living in an urban area. Nevertheless, living alone had negative associations with DDS, with a β (95% CI) of - 0.27 (- 0.53, - 0.00).

Conclusions

This study showed that a higher educational level, a higher wealth index, and living in an urban area had a positive association, whereas living alone had a negative association with DD among Thai older participants. Interventions aiming to improve dietary diversity among older people might benefit from targeting more vulnerable groups, particularly those with less education and wealth, those living alone, or those in rural areas.