This research develops improved methods for exploring and visualising global country-level data over time. By identifying patterns, trends, unusual observations and differences between countries, and addressing missing data through the R package ‘wdiexplorer’, the work aims to support researchers and policymakers in making better informed, data-based decisions across multiple sectors.

Using longitudinal data from 30,000 South Korean children, this study shows that child abuse significantly increases suicidal thoughts, especially with prolonged exposure. Crucially, strong social connections—such as team sports, supportive teachers, and caring neighbors—dramatically reduce this risk, highlighting social interaction as a key source of resilience.