Background: The importance of social connectedness in supporting public mental health is well established. However, the reverse causal pathway (that psychological ill-health leads to reduced social connectedness) remains a dominant perspective among mental health practitioners. Our analysis aimed to provide a rigorous test of the directionality of this relationship.
Method:A cross-lagged panel analysis of a large longitudinal national probability sample (N ≈ 21,227), the New Zealand Attitudes and Values Survey (NZAVS), was used to assess the bidirectional longitudinal relationship between social connectedness and mental health, controlling for baseline levels of both variables and demographics.Results: Social connectedness was found to be a stronger and more consistent predictor of mental health year-on-year than mental health was of social connectedness.
Conclusion:These results further demonstrate how the psychological resources conferred by social connectedness can act as a 'social cure' for psychological ill-health, and provide the strongest evidence to date for the direction of this relationship in the general community.Keywords: social connectedness; mental health; psychological distress; social capital; depression; wellbeing.
Social connectedness improves mental health | 3
Social Connectedness Improves Public Mental Health: Investigating Bidirectional Relationships in the New Zealand Attitudes and Values SurveySocial connectedness is critical for good health. People with limited social connectedness have poorer mental and physical health, including increased depression (Cruwys, Haslam, Dingle, Haslam, & Jetten, 2014a), and die earlier than those with strong social connectedness (for a meta-analysis, see Holt-Lunstad, Smith, & Layton, 2010). There is widespread consensus in the public health and epidemiology literatures that social connectedness causally protects and promotes mental health (Kawachi & Berkman, 2001;Perkins, Subramanian, & Christakis, 2015).However, models that specify the reverse causal relationship are also common among clinicians; the loss of social connectedness is frequently described as a consequence of mental illness.Indeed, a key diagnostic criterion of Major Depressive Disorder is that symptoms "cause clinically significant distress or impairment in social, occupational or other important areas of functioning" (emphasis added, p. 161, American Psychiatric Association [APA], 2013). This tension between the two perspectives remains unresolved despite an emerging body of longitudinal work, partly due to the lack of a simultaneous test of the bidirectional relationships that may robustly demonstrate the direction of the causal effect between social connectedness and mental health.1 In this paper we address this tension, testing whether social connectedness is the better predictor of mental health over time than the converse.
Social connectedness and mental healthThe focal emphasis of research on social connectedness and mental health has differed somewhat between public health...