Adherence

Counselor efficiency in providing personalized feedback for technology-based behavioral weight loss interventions increases significantly over the first 9 months, reducing the time required per feedback message from a mean of 53 minutes to 26 minutes, though the absolute time cost (25-30 minutes) remains high.

If you are designing a weight loss program with human coaching, expect the time required to review and respond to participant data to drop significantly after the first 3-6 months as counselors become proficient. However, even with this efficiency gain, the time cost per interaction remains substantial (approx. 25-30 minutes), suggesting that for large-scale programs, hybrid models using automated feedback or peer support may be necessary to maintain cost-effectiveness.