TIDES 2.0: Prevalence and Longitudinal Course of Depression, Anxiety, and Behavior Problems in Children With Cystic Fibrosis Under 12 Years of Age

This study looks at how common depression, anxiety, and behavioral problems are in young children with cystic fibrosis (CF), a serious lung and digestive disease. Researchers will follow children over time to better understand these mental health challenges and how they change as kids grow. **You may be eligible if:** - Your child has been diagnosed with cystic fibrosis and is currently being followed by a CF care team at one of the participating sites - Your child is between 18 months and 11 years old - Your family speaks English or Spanish - You (as a parent or guardian) are willing and able to give consent; children ages 7–11 will also be asked to agree to participate **You may NOT be eligible if:** - You or your child is unable or unwilling to complete study activities Talk to your doctor to see if this trial is right for you.