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• Frailty is not directly associated with self-neglect, and depression is the potential mediating factor between frailty and self-neglect. • Depression and social isolation are both associated with self-neglect in older adults. • Management of depression and improvement of social networks of older adults should be incorporated into interventional strategies to effectively control self-neglect. To identify the role of frailty, social networks, and depression in self-neglect in an older Chinese population. The study was conducted in 521 older adults recruited from four community healthcare centers in a district in Beijing, China. Participants were investigated by a set of questionnaires. Frailty (β=0.150, p=0.759) was not associated with self-neglect of older adults. Social isolation (β=1.980, p<0.001) and depression (β=3.606, p<0.001) were both factors associated with self-neglect in older adults. Management of depression and improvement of social networks of older adults should be incorporated into interventional strategies to effectively control self-neglect. Understanding self-neglect and its associated factors will ultimately contribute to the intervention development and well-being of older adults. [ABSTRACT FROM AUTHOR]

• Loneliness plays a key role in poor sleep quality, which has adverse effects on the physical and mental health of older populations. • Emotional loneliness may have a stronger association with poor sleep quality than social loneliness. • Health professionals should incorporate loneliness reduction measures into sleep management programs for older adults with poor sleep quality. To systematically review studies and explore the association between loneliness and sleep quality among older adults. A comprehensive literature search was conducted in 8 databases from their inception to February 28, 2022. Studies that investigated the association between loneliness and sleep quality among older people were obtained. Comprehensive Meta-analysis was used to meta-analyze data in the included studies. In total, 16 studies with 23,485 participants were included in this review, and 6 of these studies were included in the meta-analysis. The meta-analysis showed that older adults who were lonely were significantly more likely to suffer from low sleep quality than their counterparts without loneliness (pooled OR = 1.750, 95% CI: 1.511–2.026, p < 0.01). Loneliness is associated with poor sleep quality among older adults. Loneliness reduction measures should be considered as one of the essential elements in sleep management programs for older people with low sleep quality. [ABSTRACT FROM AUTHOR]