Smartphone usage and overdependence risk among middle-aged and older adults: a cross-sectional study.

Background: Previous studies have predominantly focused on smartphone overdependence among adolescents and young adults. However, as smartphone usage has recently surged among South Korean middle-aged and older adults, the risk of smartphone overdependence cannot be overlooked among this population. Therefore, this study was conducted to examine the smartphone usage pattern and the associated risk of overdependence in this specific age group.

Types of co-occurring patterns of mental health among the disaster victims in South Korea.

This study examined co-occurring patterns of mental health among disaster victims using latent profile analysis and assessed the difference between sociodemographic factors and protective factors that affect group classification. The data of 2300 disaster victims from 2019 (4th wave) NDMI (National Disaster Management Research Institute) for Long-term Survey on the Change of Life of Disaster Victims were analyzed. The latent profile analysis revealed that three profiles; High comorbid symptom (HCS) (6.