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Objectives: We examined the impact of the social network before the coronavirus pandemic on loneliness and depressed mood during the pandemic in older European individuals, and how these relationships differ between different European countries., Methods: Data of N = 19,999 persons (age: M = 69.18 years; 51% female) from the pan-European longitudinal survey of health, ageing and retirement in Europe, interviewed between October 2019 and March 2020 (Wave 8) and between June and August 2020 (Corona Questionnaire 1), were used. To test the models we employed path analyses, controlling for age, gender, education, and occupational status. Models were also run separately in collectivistic (Romania, Slovenia, Croatia, and Greece) and individualistic (Netherlands, Belgium, Denmark, and France) country groups., Results: A larger social network before the pandemic reduced the probability of an increase in loneliness and depression. The negative association between social network size and increase in loneliness was stronger in collectivist countries than in individualist ones. Moreover, an increase in loneliness increased the probability of feeling depressed., Conclusions: It appears that pre-pandemic social networks served as a buffer to negative mental health consequences of the pandemic in older Europeans. In fact, this association was stronger in collectivist than for individualist countries. While this underscores the importance of social connectedness, it also stresses the vulnerability of socially isolated individuals regarding loneliness and depression. Future work should thus focus on supporting social networks in older adults., (© 2023 The Authors. International Journal of Geriatric Psychiatry published by John Wiley & Sons Ltd.)

Objectives: This systematic review and meta-analysis aimed to determine the prevalence of loneliness and social isolation among informal carers of individuals with dementia and to identify potential influencing factors., Methods: We conducted a comprehensive search across 10 electronic databases, including PubMed, Cochrane, Embase, Web of Science, PsycINFO, CINAHL, Scopus, Chinese Biomedical, China National Knowledge Internet, and WANFANG. Our search strategy covered the inception of the databases up to September 16, 2023, with an updated search conducted on March 8, 2024. Prevalence estimates of loneliness and social isolation, presented with 95% confidence intervals, were synthesized through meta-analysis. Subgroup analyses and meta-regression were employed to explore potential moderating variables and heterogeneity., Results: The study encompassed 27 research papers involving 11,134 informal carers from 17 different countries. The pooled prevalence of loneliness among informal carers of individuals with dementia was 50.8% (95% CI: 41.8%-59.8%), while the pooled prevalence of social isolation was 37.1% (95% CI: 26.7%-47.6%). Subgroup analyses and meta-regression indicated that various factors significantly influenced the prevalence of loneliness and social isolation. These factors included the caregiving setting, study design, the intensity of loneliness, geographical location (continent), data collection time, and the choice of assessment tools., Conclusions: This study underscores the substantial prevalence of loneliness and social isolation among informal carers of individuals with dementia. It suggests that policymakers and healthcare providers should prioritize the development of targeted interventions and support systems to alleviate loneliness and social isolation within this vulnerable population., (© 2024 John Wiley & Sons Ltd.)