In network theory depression is conceptualized as a complex network of individual symptoms that influence each other, and central symptoms in the network have the greatest impact on other symptoms. Clinical features of depression are largely determined by sociocultural context. No previous study examined the network structure of depressive symptoms in Hong Kong residents. The aim of this study was to characterize the depressive symptom network structure in a community adult sample in Hong Kong during the COVID-19 pandemic. A total of 11,072 participants were recruited between 24 March and 20 April 2020. Depressive symptoms were measured using the Patient Health Questionnaire-9. The network structure of depressive symptoms was characterized, and indices of “strength”, “betweenness”, and “closeness” were used to identify symptoms central to the network. Network stability was examined using a case-dropping bootstrap procedure. Guilt, Sad Mood, and Energy symptoms had the highest centrality values. In contrast, Concentration, Suicide, and Sleep had lower centrality values. There were no significant differences in network global strength (p = 0.259), distribution of edge weights (p = 0.73) and individual edge weights (all p values > 0.05 after Holm–Bonferroni corrections) between males and females. Guilt, Sad Mood, and Energy symptoms were central in the depressive symptom network. These central symptoms may be targets for focused treatments and future psychological and neurobiological research to gain novel insight into depression.

Background Health literacy determines an individual’s decision-making process in providing judgment concerning appropriate healthcare. Considering the various purposes of literacy for people, functional health literacy (FHL) was identified as a type of literacy that is measured by the application of literacy skills to health-related materials as a result of health education. The objective of this study was to identify the possible socio-demographic correlates of FHL of Filipinos. Methods A cross-sectional survey was conducted among 2,303 Filipinos aged 15 to 70 years old in 2018–2019 utilizing the National Health Literacy Survey. Functional health literacy was determined using the FHL-5 Test which measured prose, document, and numeracy skills. Descriptive analysis presented socio-demographic characteristics and level of FHL. Log-binomial regression was used to estimate associations of FHL adequacy with socio-demographic characteristics. Results Overall, the study involved 1,997 (86.7%) qualified participants. Most of them demonstrated prose literacy skills and had adequate FHL. Adjusted regression analyses showed that participants with a college-level education (Adjusted prevalence ratio [APR]: 1.43, 95% confidence interval [95% CI] 1.27–1.60), categorized under domestic service occupation (APR 1.19, 95% CI: 1.03–1.37), and those residing in urban areas (APR: 1.14, 95% CI 1.06–1.24) were significantly more prevalent in exhibiting FHL adequacy. In contrast, male participants and individuals aged 60 years or above were less likely to demonstrate FHL adequacy. Conclusions The study presents a baseline assessment of the functional health literacy level, measured using the FHL-5 Test, of adults in the Philippines. Majority of the participants demonstrated FHL adequacy, with relatively higher scores in prose than numeracy literacy. The measurement of FHL adequacy can inform policies on methods of health education and communication, emphasizing the need to stratify the audience based on socio-demographic characteristics and adapt the content and design of informational materials for population-based health educational programs.

Functional health literacy (FHL) involves skills in writing, reading, oral expression, comprehension, and numerical calculations to successfully function and complete health-related tasks. This study aimed to develop and validate an instrument for measuring FHL in the Philippines using a mixed-method design. FHL-5TEST is an instrument consisting of five questions developed in consultation with local experts, translated to major Philippine languages, and underwent translation analysis, pretesting, cultural adaptation, and validation. A cross-sectional study was conducted in a random sample of 15-70-year-old Filipino residents to validate the instrument. The FHL-5TEST demonstrated high internal consistency, with a Cronbach’s alpha of 0.7690. Across different cut-off values, the sensitivity and specificity of the instrument in detecting limited FHL ranged from 60.9% to 86.0% and from 61.6% to 97.2%, respectively. The study demonstrated that the FHL-5TEST is a valid and reliable instrument to measure functional health literacy in the Philippines.