In this webinar, Janine Verstraete (University of Cape Town) will share about the needs for age-appropriate instruments, the challenges in longitudinal data collection in studies spanning age ranges. Bram Roudijk (EuroQol Research Foundation) will talk about the similarities and differences in values derived from EQ-5D-Y and EQ-5D. Tessa Peasgood (University of Sheffield) will share about generating appropriate and consistent health state utilities and QALYs across the life-course from cradle to grave. Following the presentations, a Q&A session will be held with Lyn Xuan Tay (Universiti Sains Malaysia), Ashwini Priyangika De Silva (University of Melbourne), Xin Zhang (National University of Singapore), and the audience.