빅데이터 분석을 통한 국내 성인의 좌식행동 시간과 우울의 관계: 국민건강영양조사 자료 활용

This study conducted a big data analysis using the Korea National Health and Nutrition Examination Survey (KNHANES) to investigate the relationship between sedentary behavior time and depression among Korean adults. The study sample consisted of 15,969 adults aged 19 and over who participated in the 2016, 2018, and 2020 KNHANES. Depressive symptoms were assessed using the Patient Health Questionnaire-9 (PHQ-9), and sedentary behavior time was measured as the average daily sitting time. The analysis revealed that the risk of depression significantly increased with longer sedentary behavior time. Specifically, adults who sat for 12 or more hours per day had a 2.10 times higher risk of depression compared to those who sat for 8 hours or less, as measured by the cross ratio (CR). Age group analysis confirmed that longer sedentary behavior time was associated with an increased risk of depression across all age groups. The cross ratio was 2.39 (OR: 2.39 [1.76-3.26]) for the 40-64 age group and 2.26 (OR: 2.26 [1.61-3.14]) for those aged 65 and over. This study systematically analyzed the relationship between sedentary behavior time and depression, highlighting the need for strategies to reduce sedentary behavior to prevent depression. These findings can serve as essential data for policymakers to develop programs that reduce sedentary behavior and promote physical activity. Future research should employ objective measurement tools for further investigation. Additionally, this study provides crucial foundational data for developing tailored community health management programs based on age groups.