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Objectives: The present study aims to identify distinct types of relationships between grandparents and their adult children, measure the associations between these relationship types and depressive symptoms among grandparents, and determine whether these associations vary by grandparent status. Method: This study uses data from a sample of 1,196 grandparents age 51 and older from the 2014 Health and Retirement Study. Latent class analysis (LCA) is applied and identifies types of grandparent–adult children relationships. Ordinary Least Squares (OLS) regression models are used to estimate the association between relationship types and depressive symptoms by grandparent status. Results: LCA identified four grandparent-adult children relationship types: amicable, ambivalent, detached, and disharmonious. Custodial and co-parenting grandparents were most likely to report having an ambivalent relationship with their adult children. Among co-parenting and custodial grandparents, disharmonious relationships were associated with more depressive symptoms. Conclusion: Interventions are suggested to improve emotional relationships with adult children and dyadic family relationships among grandparent families. [ABSTRACT FROM AUTHOR]

Guided by a convoy model of social relations, this study explores the complex relationships between loneliness, age at immigration, familial relationships, and depressive symptoms among older immigrants. This study used 2010 Health and Retirement Study data from a sample of 575 immigrants (52% female, age range 65–99 years). Ordinary least squares regression models were estimated. The findings indicate that for older immigrants who came to the United States at age 45 or older, loneliness was significantly positively associated with depressive symptoms. Further, perceived negative strain and hours spent helping family moderated this relationship such that the effect of loneliness on depressive symptoms was stronger among respondents who perceived more negative family strain and spent fewer hours helping family. Familial relationships are crucial for the psychological well-being of older immigrants because they can be a source of either stress or support. The results have implications for how research and practices can support the immigrant families. [ABSTRACT FROM AUTHOR]

This study examined the longitudinal association of depressive symptoms with grandchild care intensity and whether the association varies by household structure, residential area, and gender for Chinese grandparents. Using data from three waves of the China Health and Retirement Longitudinal Study (CHARLS, 2011–2015), we applied multilevel mixed effects models to examine changes in depressive symptoms and the associations with caregiving intensity and to test the moderation effects of residence, living arrangement, and gender. After controlling for sociodemographic and health covariates, we found that providing a medium level of grandchild care was associated with fewer baseline depressive symptoms compared with non-caregivers. Providing low-level care among those living with spouse/partner and among those living with child(ren)/others was associated with fewer depressive symptoms relative to non-caregivers with similar living arrangements. Findings indicate that a medium level of involvement in childcare was associated with better mental wellness and low levels of caregiving may benefit nonresidential caregivers. More prospective longitudinal studies are needed to improve the operationalization of grandparent caregiving, validate the associated health outcomes, and apply a contextual approach to examine socioeconomic, cultural, and policy-related contexts of caregiving in the changing world of China. [ABSTRACT FROM AUTHOR]

Guided by a convoy model of social relations, this study investigates the relationships between grandparenting status, social relations, and mortality among community-dwelling grandparents age 65 and older who are caring for their grandchildren. The data were drawn from the 2008 and 2016 waves of the Health and Retirement Study (N = 564). Latent class analysis was used to identify the social network structure based on six indicators of interpersonal relationships and activities. A series of hierarchical Weibull hazard models estimated the associations between grandparent caregiving, social relations, and mortality risk. Results of survival analyses indicate that co-parenting and custodial grandparents had higher all-cause mortality risk than grandparents who babysat occasionally; however, for custodial grandparents, the association was not significant once social relation variables were added to the model. This study suggests that community-based support may be beneficial to older grandparents and improved relationship quality is integral to the well-being of older adults. [ABSTRACT FROM AUTHOR]

Objectives For the growing population of older immigrants in the United States, both age at immigration and familial relationships are important factors affecting psychological well-being. This study explores how age at immigration and contemporary relationships with adult children combine to explain older immigrants' depressive symptoms. Method This study uses 2014 Health and Retirement Study data from a sample of 759 immigrants aged 65 and older who have at least one adult child aged 21 or older. A series of ordinary least squares regressions and mediational analyses were conducted. Results Findings indicate that structural solidarity significantly mediates the association between age at immigration and depressive symptoms. Specifically, immigrating in later life was associated with a lower level of depressive symptoms through its relationship with structural solidarity. In addition, giving monetary support to children and providing care for grandchildren may alleviate depressive symptoms for older immigrants. Discussion This study suggests that relationships with adult children may differ with age at immigration. The types of support that older immigrants provide to their adult children may be crucial because such support may instill a sense of obligation and reciprocity that may be beneficial to the psychological well-being of older immigrants. [ABSTRACT FROM AUTHOR]

This study aims to assess racial differences in subjective wellbeing (SWB) and to examine whether the pathways of social support and social engagement to SWB vary by racial groups in the United States of America. Using a local sample (N = 1,035) and a nationally representative sample of the Health and Retirement Study (N = 7,718), we compared life satisfaction and happiness between non-Hispanic Whites and Blacks aged 55 and over. We evaluated the extent to which race, other socio-demographic characteristics, health, social engagement and social support explained the variances in SWB and examined the moderation effects of race on the relationships of SWB with age, social support and social engagement. Multiple regression analyses showed that non-Hispanic Blacks were at least as satisfied as, and even happier than White peers, after equalising social resources and health variables. Social support was significantly related to SWB, and it seemed that positive support was more important to Whites than to Blacks in predicting life satisfaction. In addition, the racial crossover effect existed, that is, the old-old (80+) Blacks were happier than their White peers. Findings indicate a national trend of the race paradox in SWB and underscore the importance of social support in promoting older adults' wellbeing. Future research is recommended to investigate other potential mechanisms among Black older Americans to explain their relatively better SWB. [ABSTRACT FROM AUTHOR]

Purpose: Clinical mass spectrometry requires a simple step process for sample preparation. This study aims to optimize the method for isolating periplasmic protein from Gram-negative bacteria and apply to clinical mass spectrometry., Experimental Design: The Klebsiella pneumoniae carbapenemase (KPC)-producing E. coli standard cells were used for optimizing the osmotic shock (OS) lysis method. The supernatant from OS lysis was analysed by LC-MS/MS and MALDI-TOF MS. The effectiveness of the OS lysis method for KPC-2-producing Enterobacteriaceae clinical isolates were then confirmed by MALDI-TOF MS., Results: The optimized OS lysis using KPC-2 producing E. coli standard cells showed a high yield of KPC-2 protein and enriches periplasmic proteins. Compared with other lysis methods, the detection sensitivity of KPC-2 protein significantly increased in MALDI-TOF MS analysis. Nineteen clinical isolates were validated by MALDI-TOF MS using the OS method, which also showed higher detection sensitivity compared to other lysis method (e.g., 1.5% n-octyl-β-D-glucopyranoside) (p < 0.001)., Conclusions and Clinical Relevance: This study provides a straightforward, rapid, affordable, and detergent-free method for the analysis of periplasmic proteins from Enterobacteriaceae clinical isolates. This approach may contribute to MS-based clinical diagnostics., (© 2021 Wiley-VCH GmbH.)