Economic evaluation
weight loss
A trial-based economic evaluation was undertaken using data from the RUFIT-NZ trial. The main outcomes for the economic evaluation were the incremental cost-effectiveness ratio (ICER) in terms of cost per body weight loss (kg), and cost per quality-adjusted life year (QALY) gained, for participants enrolled in the program compared with those in the control arm over 52 weeks. Participant HRQoL was measured using the EQ-5D-5L at both 12 and 52 weeks; a utility score was derived using NZ population-specific weights to estimate QALYs gained at 52 weeks for participants enrolled in both treatment and control arms [