Longitudinal health behaviour patterns among adults aged ≥50 years in China and their associations with trajectories of depressive symptoms

Longitudinal association of spirituality with depressive symptom trajectories among older adults in mainland China

OBJECTIVES

The relationship between spirituality and depressive symptoms among the Chinese elderly is not well known. The current study explores this relationship using longitudinal data and trajectory modeling of depressive symptoms.

METHODS

A longitudinal study design was used to measure depressive symptoms repeatedly from 2012 to 2021 using the Geriatric Depression Scale (GDS). Group-based trajectory modeling analysis was conducted to determine the trajectories of depressive symptoms, and multiple logistic regression was used to explore the association between spirituality and depressive symptom trajectories.

RESULTS

A total of 2333 participants completed at least two GDS measures, and these were included in the Group-based trajectory modeling analysis. An optimal model of three trajectories was derived: no depressive symptoms group (75.2%), new-onset depressive symptoms group (14.4%), and persistent depressive symptoms group (10.4%). Logistic regression modeling revealed that higher spirituality was associated with a lower risk of both new-onset depressive symptoms (OR = 0.68, 95% CI = 0.49-0.93) and persistent depressive symptoms (OR = 0.32, 95% CI = 0.23-0.45).

CONCLUSIONS

Spirituality predicts a lower risk of new-onset depressive symptoms and persistent symptoms among older adults in mainland China.

The influence of social participation and depressive symptoms on cognition among middle-aged and older adults

Background

The global aging phenomenon has raised concerns about the cognitive abilities of older individuals. This study aimed to explore the relationship between social participation, depressive symptoms, and cognitive function among middle-aged and older adults.

Methods

This study utilized data from the China Longitudinal Study of Health and Retirement (CHARLS) from wave 1 to wave 4. We used linear regression and generalized estimation equations to investigate the correlation between social participation, depressive symptoms, and cognitive function. Moreover, three models were constructed by adjusting covariates, and we used the sobel test and bootstrap method to analyze the mediating effects of depressive symptoms on social activities and cognitive function.

Results

The results of both linear regression and generalized estimation equation showed that social participation had a positive correlation with cognitive function (P < 0.05), and the impact of social participation on cognition increased with the number of social activity types. Meanwhile, depressive symptoms had a negative association with cognitive function (P < 0.05). Furthermore, there was no interaction between social participation and depressive symptoms on cognitive function. Finally, after adjusting the model, social participation could affect cognitive function by affecting depressive symptoms (P < 0.05).

Conclusion

The study emphasizes the mediating role of depressive symptoms in the relationship between social participation and cognitive function. Notably, no interaction was observed between social participation and depressive symptoms. These findings highlight the potential of active social participation in reducing depressive symptoms and enhancing cognitive function in middle-aged and older adults.

Maintaining psychological well-being amidst the COVID-19 pandemic: The beneficial effects of health-promoting behaviors and sense of control

The present research reports the findings of three studies, with objectives to demonstrate the impacts of health-promoting behaviors on psychological well-being as well as the mediating roles of sense of control (SOC) and perceived severity of COVID-19 in these relationships. Study 1 was a cross-sectional survey conducted in 473 middle-aged and older Chinese adults before the COVID-19 pandemic to assess their health-promoting behaviors, personal mastery and perceived constraints, life satisfaction, and depressive symptoms. Study 2 was conducted during the second wave of the COVID-19 outbreak in Hong Kong (between March to April 2020), in which 292 participants from Study 1 were successfully contacted to report their emotional responses to the pandemic. Using a different sample, Study 3 was a longitudinal study that measured 495 participants' health-promoting behaviors, personal mastery and perceived constraints at baseline, and their perceived severity and mental health outcomes during the outbreak of omicron cases in Hong Kong (i.e., the fifth wave of the COVID-19 outbreak) in March 2022. All three studies demonstrate that the beneficial effects of health behaviors can be extended to psychological well-being and reveal possible underlying mechanisms through enhancing one's SOC and lowering perceived severity of the COVID-19 outbreak. These results provide important insights to future health promotion programs for improving psychological resources and psychological well-being of middle-aged and older adults in face of disease-related threats.