Socioeconomic status, loneliness, and depression among older adults: a cross-sectional study in Spain.

BACKGROUND: The association between socioeconomic status and depression is weaker in older adults than in younger populations. Loneliness may play a significant role in this relationship, explaining (at least partially) the attenuation of the social gradient in depression. The current study examined the relationship between socioeconomic status and depression and whether the association was affected by loneliness. METHODS: A cross-sectional design involving dwelling and nursing homes residents was used. A total of 887 Spanish residents aged over 64 years took part in the study. Measures of Depression (GDS-5 Scale), Loneliness (De Jong-Gierveld Loneliness Scale), Socioeconomic Status (Education and Economic Hardship), and sociodemographic parameters were used. The study employed bivariate association tests (chi-square and Pearson's r) and logistic regression analyses. RESULTS: The percentage of participants at risk of suffering depression was significantly higher among those who had not completed primary education (45.5%) and significantly lower among those with university qualifications (16.4%) (X2 = 40.25;p <.001), and respondents who could not make ends meet in financial terms faced a higher risk of depression (X2 = 23.62;p <.001). In terms of the respondents who experienced loneliness, 57.5% were at risk of depression, compared to 19% of those who did not report loneliness (X2 = 120.04;p <.001). The logistic regression analyses showed that having university qualifications meant a 47% reduction in the risk of depression. This risk was 86% higher among respondents experiencing financial difficulties. However, when scores for the loneliness measure were incorporated, the coefficients relating to education and economic hardships ceased to be significant or were significantly reduced. CONCLUSION: Loneliness can contribute to explaining the role played by socioeconomic inequalities in depression among older adults.

Validation of the Attitudes toward Lying to People with Dementia (ALPD) Questionnaire among Social Workers in Spain.

Gerontological interventions should address the various geriatric syndromes suffered by the elderly, such as neurodegenerative diseases. Therapeutic lying is an effective and humanizing strategy to deal with dementia, used by various disciplines in the social and healthcare fields. This intervention strategy is made up of all the different responses to reality that are given to a person with cognitive impairment. This study analyzes the validity of the Spanish adaptation of the Attitudes toward Lying to People with Dementia (ALPD) questionnaire, given to 253 social workers who directly and indirectly intervened with older people suffering from cognitive impairment in public and private centers in Spain during the year 2022. The results of the validity and reliability analyses support the psychometric quality of ALPD for use in Spanish social workers. The statistical results indicate a good fit of the bifactor model (person-focused and lie-focused) and show the questionnaire to be reliable, with adequate psychometric properties. The article concludes with a discussion of practical, formative, and ethical challenges for social work in the field of geriatric services.

Pedestrian Crossing Intention Forecasting at Unsignalized Intersections Using Naturalistic Trajectories.

Interacting with other roads users is a challenge for an autonomous vehicle, particularly in urban areas. Existing vehicle systems behave in a reactive manner, warning the driver or applying the brakes when the pedestrian is already in front of the vehicle. The ability to anticipate a pedestrian's crossing intention ahead of time will result in safer roads and smoother vehicle maneuvers. The problem of crossing intent forecasting at intersections is formulated in this paper as a classification task. A model that predicts pedestrian crossing behaviour at different locations around an urban intersection is proposed. The model not only provides a classification label (e.g., crossing, not-crossing), but a quantitative confidence level (i.e., probability). The training and evaluation are carried out using naturalistic trajectories provided by a publicly available dataset recorded from a drone. Results show that the model is able to predict crossing intention within a 3-s time window.

[Prevalence of loneliness among older people living in rural areas. Differences by ethnic group and predictor variables]. / Prevalencia de la soledad en las personas mayores que viven en zonas rurales. Diferencias por grupos étnicos y variables predictivas.

BACKGROUND: Loneliness is one of the most recurrent public health problems in older people. However, there is little data available in Chile on its prevalence in people over 60 years of age living in rural areas and belonging to native or Afro-descendant groups. AIM: To examine the prevalence of loneliness among older people living in rural areas by ethnic group and to analyze the socio-demographic, family, and health variables related to loneliness. METHODS: We interviewed 1,692 elderly people living in Chilean rural areas of the regions of Arica and Parinacota, Tarapacá, Antofagasta, Atacama, Coquimbo, Valparaíso, Los Lagos, Aisén and Magallanes. The instruments applied were the DJGLS-6 loneliness scale, Family-APGAR, questionnaire of 13 most frequent health problems in Chilean older people, and Barthel index. RESULTS: We found a high prevalence of loneliness (over 55%) among Afro-descendants, Quechua, Atacameño, Colla, Chango, Huilliche, Kawesqar and non-indigenous people. Emotional loneliness is the most prevalent among indigenous and non-indigenous older people living in rural areas (≥ 71%). Variables associated with loneliness were being female, age, not having a partner, living alone, family dysfunctionality, and having health problems. CONCLUSIONS: Loneliness in rural areas is higher in older people, and this situation becomes more complex at the crossroads of ethnic-cultural diversity; it is necessary to continue to address this problem that affects biopsychosocial well-being in old age.

Prevalence of intestinal parasitism in preschool and school children in Colombia: Systematic review and meta-analysis.

OBJECTIVE: Intestinal parasitic infections (IPIs) are a public health challenge in developing countries such as Colombia, causing anaemia and delayed growth and development in children. We aimed to estimate the geographical and prevalence trend of IPIs in the last 30 years in school and preschool children in Colombia. METHODS: We conducted a systematic review and meta-analysis. We identified potential manuscripts through PubMed, EMBASE, Web of Science, LILACS, Scielo and Google Scholar on the IPIs prevalence in school and preschool children in Colombia. Articles included in the qualitative analysis were published between 1990 and 2020 in English or Spanish and met the inclusion criteria. Subsequently, a random-effects meta-analysis, a meta-regression and a trend analysis were performed. RESULTS: We identified 2292 articles; 109 were included in the qualitative review, and 79 articles were included in the meta-analysis. The estimated IPI prevalence was 55% (95% CI: 48-63). By age group, the prevalence in preschool children was 37% (95% CI: 26-49) and 66% (95% CI: 52-78) in schoolchildren. The prevalence by region was heterogeneous, with the Amazon being the highest (69%) and the Santanderes the lowest (28%). In the last 20 years, the prevalence of helminthiasis has decreased (from 64.66% in 1990-1995 to 22.09% in 2016-2020). CONCLUSION: The prevalence of IPIs is high (>30%) in three of the seven regions in Colombia. Biannual administration of mass deworming in schoolchildren is recommended in the Amazon region. Public policies aiming to control IPIs should be reinforced. Further prevalence studies should include Cesar, Guaviare, Vichada and Vaupés, where the epidemiology of IPIs is unknown. SUSTAINABLE DEVELOPMENT GOALS: Good health and wellbeing, clean water and sanitation, sustainable cities and communities.

Uncoupled Dark States Can Inherit Polaritonic Properties.

When a collection of quantum emitters interacts with an electromagnetic field, the whole system can enter into the collective strong coupling regime in which hybrid light-matter states, i.e., polaritons can be created. Only a small portion of excitations in the emitters are coupled to the light field, and there are many dark states that, in principle, retain their pure excitonic nature. Here we theoretically demonstrate that these dark states can have a delocalized character, which is inherent to polaritons, despite the fact that they do not have a photonic component. This unexpected behavior only appears when the electromagnetic field displays a discrete spectrum. In this case, when the main loss mechanism in the hybrid system stems from the radiative losses of the light field, dark states are even more efficient than polaritons in transferring excitations across the structure.

[Studying loneliness and social support networks among older people: a systematic review in Europe.] / La investigación sobre soledad y redes de apoyo social en las personas mayores: una revisión sistemática en Europa.

OBJECTIVE: During the ageing process the loss of family and social relationships is frequent which conditions loneliness, similarly the current COVID-19 pandemic has generated more social limitations in this age group and has increased the risk factors to trigger feelings of loneliness. This paper aimed to examine how loneliness among older people had been studied in Europe over the last ten years. Specific objectives were: i) to describe the methodological aspects; ii) to identify the scales or questions for the assessment of loneliness; iii) what were the main variables or dimensions that were related to loneliness in old age. METHODS: A total of 1,591 articles were found in WoS and Scopus digital platforms. After initial assessment of titles and abstracts, full text reading and review of the established criteria, 42 scientific articles were finally included in the systematic review. RESULTS: The countries that had carried out the most studies were the Netherlands and Spain. Most of the research was quantitative and uses the De Jong Gierveld Loneliness Scale (DJGLS) and the University of California at Los Angeles (UCLA) Loneliness Scale. The most analysed variables were: marital status, household structure, social support networks, social participation, depression, health problems, co-morbidity and physical functioning. CONCLUSIONS: The scientific interest in studying loneliness, with a focus on social support networks, in older people in Europe and strategically addressing loneliness as a public health problem is confirmed.

OBJETIVO: Durante el proceso de envejecimiento es frecuente la pérdida de relaciones familiares y sociales, lo cual condiciona la soledad. Además, la actual pandemia de la COVID-19 ha generado más limitaciones en las relaciones sociales de este grupo de edad y ha aumentado los factores de riesgo para desencadenar sentimientos de soledad. Este trabajo tuvo el objetivo de examinar cómo se había estudiado la soledad en las personas mayores en Europa en los últimos diez años. Se propusieron como objetivos específicos: i) describir los aspectos metodológicos; ii) identificar las escalas o preguntas para la valoración de la soledad; iii) cuáles eran las principales variables o dimensiones que se relacionaban con la soledad en la vejez, priorizando el rol de las redes de apoyo social. METODOS: Se encontraron 1.591 artículos en total en las plataformas digitales WoS y Scopus. Tras la valoración inicial de los títulos y resúmenes, lectura de texto completo y revisión de los criterios establecidos, al final se incluyeron en la revisión sistemática 42 artículos científicos. RESULTADOS: Los países que más estudios habían realizado eran Países Bajos y España, en su mayoría las investigaciones eran cuantitativas y utilizaban las escalas De Jong Gierveld Loneliness Scale (DJGLS) y University of California at Los Angeles (UCLA) Loneliness Scale. Las variables más analizadas fueron: estado civil, estructura del hogar, redes de apoyo social, participación social, depresión, problemas de salud, comorbilidad y funcionalidad física. CONCLUSIONES: Se confirma el interés científico por estudiar la soledad, con un énfasis central en las redes de apoyo social, en las personas mayores en Europa y abordar estratégicamente la soledad como un problema de Salud Pública.

A systematic review of ageing in place among Indigenous People in Canada, USA, México, Chile and New Zealand.

The ageing in place (AIP) model enjoys widespread recognition in gerontology and has been strongly encouraged through social policy. However, progress remains to be made in terms of analysing AIP for minority groups and groups with diverse life pathways in old age. This systematic review aims to identify studies that address the AIP model in indigenous communities, answering the following questions: In which geographical contexts and for which Indigenous Peoples have AIP been researched? Which physical dimensions are considered in the assessment of AIP? Which social dimensions are considered in the assessment of AIP? This systematic review applied the SALSA (Search, Appraisal, Synthesis and Analysis) method to AIP among Indigenous older adults on the Web of Science, PsycINFO, MEDLINE and Scopus digital platforms for publications from 2011 to 2021. We identified 12 studies conducted in five countries in North and South America and Oceania. The results show that the following elements of the physical environment are assessed: household, neighbourhood, local surroundings or reserve and native territories. Meanwhile, assessed elements of the social environment are as follows: personal characteristics, attachment to place, social networks, social participation and social policies. There is discussion of the need to develop AIP in order to promote successful ageing among Indigenous older adults.

Localized spoof plasmons arise while texturing closed surfaces.

We demonstrate that textured closed surfaces, i.e., particles made of perfect electric conductors (PECs), are able to support localized electromagnetic resonances with properties resembling those of localized surface plasmons (LSPs) in the optical regime. Because of their similar behavior, we name these types of resonances as spoof LSPs. As a way of example, we show the existence of spoof LSPs in periodically textured PEC cylinders and the almost perfect analogy to optical plasmonics. We also present a metamaterial approach that captures the basic ingredients of their electromagnetic response.

Income inequalities, social support and depressive symptoms among older adults in Europe: a multilevel cross-sectional study.

This study analysed the association between income inequality and depression from a multilevel perspective among older adults in Europe, including an examination of the role of social support. The data came from Eurostat's European Health Interview Survey (EHIS). Selected participants were aged 65 years or above (n = 68,417) and located in 24 European countries. The outcome variable (depression) was measured using the eight-item Patient Health Questionnaire (PHQ-8). The resulting dataset included individual-level (level-1) and aggregate-level (level 2) exposure variables. Level-1 included income quintiles and social support as exposure variables and sex, age, living alone, limitation in activities of daily living and general activity limitation as control variables. Level 2 included the Gini coefficient, healthcare expenditure and dependency ratio. A multilevel linear regression analysis was performed with maximum likelihood (ML) estimation. All the income quintiles from 1 to 4 showed higher average scores for depression than quintile 5 (the highest). Higher social support scores were associated with lower scores for depression. An interaction was found between income quintile and social support, with higher levels of social support associated with lower scores for depression in quintiles 1 and 2. Higher Gini coefficient scores were associated with higher scores for depression. A significative random slope for social support was also found, meaning that the relationship between social support and depression differed across countries. No significant interaction was found between the Gini coefficient and social support. The study findings suggest that more unequal societies provide a less favourable context for the mental health of older adults. There are also significant country-dependent differences in terms of the relationship between support and mental health among older adults. Supplementary Information: The online version contains supplementary material available at 10.1007/s10433-021-00670-2.

Aging and Family Relationships among Aymara, Mapuche and Non-Indigenous People: Exploring How Social Support, Family Functioning, and Self-Perceived Health Are Related to Quality of Life.

Family relationships play a central role in wellbeing among older adults in Chile. Based on the theory of social production functions, this study examined the relationship between perceived social support from children, partners and relatives, family functioning, self-perceived health and quality of life (QoL) among Chilean older adults. The study used a multi-ethnic sample of Chilean older adults living in rural areas in the regions of Arica and Parinacota (north) and Araucanía (south). A model was analyzed that emphasizes relationships differentiated by the source of support, family functioning and self-perceived health in the explanation of QoL. The results obtained from the structural equation modelling (SEM) analysis showed the existence of indirect relationships of social support from children, partners and other family members via family functioning, while self-perceived health was directly associated with QoL. The findings indicate that family functioning is a main variable in the contrasted model, in addition to confirming the importance of distinguishing the role of the various sources of support. Research is needed to examine in detail intergenerational relationships and other relationships with family members who are significant in the wellbeing of older adults. This research corroborates that family relationships have a specificity that needs to be addressed in gerontological social intervention, as well as continuing along the lines of strengthening or improving existing family ties (more quality) over the quantity of social relationships.

Waveguided spoof surface plasmons with deep-subwavelength lateral confinement.

We present a new type of waveguide scheme for terahertz circuitry based on the concept of spoof surface plasmons. This structure is composed of a one-dimensional array of L-shaped metallic elements horizontally attached to a metal surface. The dispersion relation of the surface electromagnetic modes supported by this system presents a very weak dependence with the lateral dimension and the modes are very deep-subwavelength confined with a long-enough propagation length.

Resonance energy transfer and superradiance mediated by plasmonic nanowaveguides.

We show how both the subwavelength confinement associated with surface plasmons and the one-dimensional character of plasmonic waveguides can be exploited to enhance the coupling between quantum emitters. Resonance energy transfer and the phenomenon of superradiance are investigated in three different waveguiding schemes (wires, wedges, and channels) by means of the Finite Element Method. We also develop a simplified model that is able to capture the main features of the numerical results.

The Social Gradient in Mental Health and Well-Being for Indigenous Older Adults Living in Rural Areas: A Cross-Sectional Comparison With Rural Non-indigenous Population in Chile.

Objectives: To compare differences in depression, loneliness and personal well-being in a sample made up of indigenous (Aymara and Mapuche) and non-indigenous older people resident in original rural territories. Methods: A cross-sectional study involving 800 older adults living in a rural context in Chile, of whom 201 were Aymara, 368 Mapuche and 231 non-indigenous. Validated instruments were included for depression, loneliness and personal well-being (outcome variables). Ordinary least squares regression analyses were performed. Results: Membership of an indigenous group was significantly associated with lower scores for depression and loneliness and higher scores for personal well-being. The interactions of severe deprivation and housing deprivation with indigenous group membership were significantly associated with lower loneliness scores and higher personal well-being scores for Aymara and Mapuche participants. Discussion: Native rural settings and territories may offer a degree of protection to indigenous peoples. Cultural continuity enhanced by rural areas would produce a culturally constructed resilience against deprivation.

Domino plasmons for subwavelength terahertz circuitry.

A new approach for the spatial and temporal modulation of electromagnetic fields at terahertz frequencies is presented. The waveguiding elements are based on plasmonic and metamaterial notions and consist of an easy-to-manufacture periodic chain of metallic box-shaped elements protruding out of a metallic surface. It is shown that the dispersion relation of the corresponding electromagnetic modes is rather insensitive to the waveguide width, preserving tight confinement and reasonable absorption loss even when the waveguide transverse dimensions are well in the subwavelength regime. This property enables the simple implementation of key devices, such as tapers and power dividers. Additionally, directional couplers, waveguide bends, and ring resonators are characterized, demonstrating the flexibility of the proposed concept and the prospects for terahertz applications requiring high integration density.

Cardiac amyloidosis: a review of a series of cases.

Antecedentes y objetivo: La amiloidosis cardíaca es una entidad que permanece infradiagnosticada, a pesar de los avances recientes en su diagnóstico y tratamiento. El objetivo de este estudio es revisar una serie de casos de amiloidosis cardíaca para describir los principales datos clínicos y los hallazgos en las pruebas de imagen. Materiales y métodos: Estudio retrospectivo de pacientes con diagnóstico principal o secundario de amiloidosis cardíaca en los informes de alta de pacientes hospitalizados en este centro desde 2006 hasta 2016. Se revisaron los datos clínicos de los pacientes, así como las pruebas de imagen (ECG, ecocardiograma, gammagrafía cardíaca, resonancia magnética cardíaca). Se realizó seguimiento de los pacientes hasta enero de 2018. Resultados: Se analiza a 30 pacientes (20 varones) con media de 65 años. Los principales datos ecocardiográficos fueron dilatación biauricular, disfunción diastólica e hipertrofia ventricular izquierda (HVI) en un 97%. Sólo el 6.7% cumplía criterios de HVI en el electrocardiograma. Hasta un 33% tenía disfunción sistólica. Se realizó gammagrafía y resonancia magnética cardíaca en un 33%. La supervivencia a los 12 meses fue de 61%. Conclusión: La presencia de insuficiencia cardíaca, fibrilación auricular o trastornos de conducción junto a datos ecocardiográficos indicativos debe alertar al clínico. Otros datos como disfunción sistólica o sexo femenino no deben disminuir la sospecha. El estudio debe completarse con gammagrafía y resonancia magnética cardíaca, ya que el diagnóstico temprano tiene implicaciones pronósticas y terapéuticas. Background and objective: Cardiac amyloidosis is an entity that remains underdiagnostic, despite recent advances in its diagnosis and treatment. The aim of this study is to review a series of diagnosed cases of cardiac amyloidosis to describe the main clinical data and the findings in the imaging tests. Materials and methods: Retrospective study of patients with primary or secondary diagnosis of cardiac amyloidosis in discharge reports of patients hospitalized in our center from 2006 to 2016. The clinical data of the patients were reviewed, as well as the imaging tests (ECG, echocardiogram, cardiac scintigraphy, cardiac magnetic resonance). Patients were followed until January 2018. Results: We analyze 30 patients (20 men) with an average of 65 years. The main echocardiographic data were biatrial dilatation, diastolic dysfunction and left ventricular hypertrophy (LVH) in 97%. Only 6.7% met criteria for LVH in the electrocardiogram. Up to 33% had systolic dysfunction. Scintigraphy and cardiac magnetic resonance were performed in 33%. Survival at 12 months was 61%. Conclusion: The presence of heart failure, atrial fibrillation or conduction disorders with suggestive echocardiographic data should alert the clinician. Other data such as systolic dysfunction or female sex should not decrease the suspicion. The study should be completed with gammagraphy and cardiac magnetic resonance since early diagnosis has prognostic and therapeutic implications.

Successful ageing in older persons belonging to the Aymara native community: exploring the protective role of psychosocial resources.

Objectives: The aim of this study is to analyse the process of successful ageing in older persons who state their belonging to a native Chilean ethnic group. There has recently been a notable increase in interest regarding analysis of the cultural processes and variables associated with successful ageing. However, there is a lack of studies analysing successful ageing in native ethnic groups; that is, ethnic communities living in their natural environmental surroundings. Methods: A cross-sectional research design was used. The sample was composed by 232 indigenous Aymara persons aged over 60 years who live in the far north of Chile. Data were collected using a questionnaire made up of validated measurement scales for successful ageing, community support, quality of life, religiousness/spirituality, and health. Results: The results suggest that indigenous persons age successfully, particularly in the context of physical functionality. Successful ageing is positively related with community integration, social support from informal systems (social groups), quality of life, and religiousness (forgiveness). In contrast, successful ageing is negatively related with depression. Conclusions: Cultural practices and an active lifestyle are ethnic cultural resources enabling persons to successfully cope with ageing. The results suggest that interventions would benefit from incorporating actions within a context of community integration. Particular attention to preventing deterioration in mental health would help to foster a successful ageing process.