“…We conducted a discrete choice experiment to examine patient preferences for OCT or punch biopsy as a diagnostic strategy; this extensive research is published elsewhere. 16 For the cost-effectiveness analysis, the main outcome was the incremental cost-effectiveness ratio, expressed as the incremental costs per additional patient free from a recurrent or residual skin lesion (pre-malignant or malignant) 12 months after treatment. This ratio is calculated as the difference in costs divided by the difference in effectiveness (ie, recurrence-free rate) at 12 months follow-up.…”