Association between interpersonal trust, reciprocity, and suicidal behaviors: a longitudinal cohort study in South Korea

[Speaker] Kim, Ja Young:1
[Co-author] Kim, Seung-sup:1,2
1:Department of Public Health Sciences, Graduate School of Korea University (Korea(Republic of Korea)), 2:College of Health Sciences, Korea University (Korea(Republic of Korea))

This research examined the prospective association between change in interpersonal trust and reciprocity and suicidal behaviors using the Korea Welfare Panel Study, which measured interpersonal trust and reciprocity at the 1st (2006) and 4th (2009) waves. Respondents were classified into four categories: low-low, low-high, high-low, and high-high levels of interpersonal trust and reciprocity. Suicidal ideation, planning, and attempt during the last year was assessed at the 7th wave (2012). After adjusting for covariates including baseline depressive symptoms, the low-low interpersonal trust group was more likely to experience suicidal ideation (OR: 1.63, 95% CI: 1.15-2.31), suicidal planning (OR: 5.44, 95% CI: 1.60-18.49), and suicidal attempt (OR: 9.03, 95% CI: 1.07-76.16), compared to the high-high interpersonal trust group. No significant association was observed in reciprocity analysis. These findings suggest that building a community with high-level interpersonal trust could be an important strategy to prevent suicidal behaviors.
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