Quality of life profiles and its association with predictors amongst Chinese older adults in nursing homes: a latent profile analysis.

BACKGROUND: Recently developments in the field of positive psychology have provided new perspectives for understanding the connection between individual variation in Quality of life (QoL) and positive aspects of human potential, strengths, and resources, commanding increasing attention. This study aimed to examine self-reported quality of life (QoL) profiles and the association of QoL profiles with positive psychosocial characteristics in Chinese older adults. METHODS: A convenient sample of 354 older adults in nursing homes was recruited from Guangdong Province, China, between November 2020 and January 2021. Latent Profile Analysis (LPA) was conducted to explore QoL profiles using the four WHOQOL-BREF domains as input variables. Multinomial logistic regression was performed to explore the association between latent profiles and predictors. RESULTS: LPA identified three latent QoL profiles: "low QoL with poor psychological health" (18.1%), "moderate QoL" (46.0%) and "high QoL" (35.9%). Frequency of weekly activity, optimism, gratitude, and social support were associated with the increased likelihood of belonging to the moderate-to-high QoL classes. Furthermore, Class 2 (moderate QoL group, reference) was compared with Class3 (high QoL group), higher frequency of weekly physical activity and spending more time on physical activity exhibited higher odds of belonging to high QoL class. CONCLUSION: Using the domains of the WHOQOL-BREF scale, the QoL profiles Chinese older adults can be identified. We found that psychosocial variables and demographic characteristic, including lower level of optimism and gratitude, lack of social support, low frequency of physical activity, and shorter activity duration time, heighten the risk for lower levels of QoL. Identifying classification may help focus on those at elevated risk for poor QoL and for developing tailored QoL improvement programs.

Optimism and subjective well-being in nursing home older adults: The mediating roles of gratitude and social support.

OBJECTIVES: To examine the level of subjective well-being (SWB) and the mediating roles of gratitude and social support in the relationship between optimism and SWB amongst older Chinese people in nursing homes. METHODS: A total of 354 older adults in Chinese nursing homes completed the World Health Organization's well-being index, Life Orientation Test-Revised, Gratitude Questionnaire-Six-Item Form, and Multidimensional Scale of Perceived Social Support. Structural equation modeling was used to evaluate the relationships between optimism, gratitude, social support and SWB. RESULTS: The mean SWB score of the older people was (63.14 ±15.31), with 21.0% of subjects reporting low SWB. Gratitude and social support in serial partially mediated the relationship of optimism with SWB (total indirect effect: Standardized ß = 0.157, 95% CI [0.109,0.216], p<0.001). CONCLUSION: These findings provide good evidence for the inter-relationship mechanism amongst the protective factors of SWB, suggesting the need to prioritize positive psychological nursing interventions to promote SWB in older people in residential care.

Hierarchically Porous Silica Prepared with Anionic Polyelectrolyte-Nonionic Surfactant Mesomorphous Complex as Dynamic Template.

Hierarchically porous silica KIT-6 and SBA-15 mesostructures were successfully synthesized by using a mesomorphous complex of a nonionic triblock copolymer (pluronic P123) and an anionic polyelectrolyte (polyacrylic acid) as the dynamic template. The obtained mesoporous silica materials possessed both ordered mesopores (∼7 nm) and nanopores (∼15-50 nm), and the long-range order of the mesophase was not perturbed by the embedded larger secondary nanopores. Moreover, hierarchically porous silica KIT-6 exhibited enhanced adsorption capacity in enzyme and protein immobilization, which was attributed to the hierarchically porous structure.