The document discusses several National Indicators in the UK that use data from the Tellus survey to measure outcomes for children and young people. It outlines the indicators on emotional health, bullying, participation in positive activities, substance misuse, and satisfaction with parks. For the indicator on participation in positive activities, it provides details on the questions and calculation method. Similarly, it describes the questions and calculation for the substance misuse indicator. It also notes challenges in using Tellus data for national indicators due to changes over time that affect comparisons.