AAGL Endo Classification 1.0.3

The total score is calculated by summing up the scores of individual components from various anatomic sites, establishing the complexity stage.

To define the four stages within the AAGL scoring system, three cut points across the distribution of the AAGL total score were selected based on receiver operating characteristic curves. These stages closely align with the four-level scale of surgical complexity for endometriosis. This system aims to classify each surgery according to its most complex task.

• Stage 1: ≤8 points
• Stage 2: 9-15 points
• Stage 3: 16-21 points
• Stage 4: >21 points