Psychological Well-Being, Depression, and Health-Related Quality of Life in Adults With Type 2 Diabetes: A Cross-Sectional Study

This is an observational study — not a treatment trial — that is surveying adults with Type 2 diabetes to understand how their mental well-being, depression levels, and quality of life are connected to their diabetes management and daily experiences. The goal is to identify patterns that can improve care. **You may be eligible if...** - You are 18 years or older with a confirmed diagnosis of Type 2 Diabetes Mellitus - You are receiving ongoing outpatient care for diabetes - You can read and complete Chinese-language questionnaires - You understand the study purpose and consent to participate **You may NOT be eligible if...** - You have a major psychiatric disorder (schizophrenia, bipolar disorder, or major depressive disorder) - You have moderate-to-severe cognitive impairment or dementia - You are currently experiencing a serious acute diabetes complication (like diabetic ketoacidosis) or are hospitalized - You have a severe language barrier or condition that prevents you from completing questionnaires Talk to your doctor to see if this trial is right for you.