Women who took GnRHa during chemotherapy represented 51% of our study population. The boxes represent proportions of the original AFC (AFC at X months/original AFC). Boxes include the 25th and 75th percentiles. Error bars represent range, excluding statistical outliers. The number of patients that have returned at a particular time point are listed over the boxes. Women who took GnRHa appeared to have increased and faster AFC recovery, compared to those whose menses resumed after chemotherapy without concurrent GnRHa. For the GnRHa group, AFC appears to improve steadily to about 56% of the original AFC, reaching a maximum by 7–9 months after chemotherapy. For the no GnRHa group, AFC appears to improve steadily to about 27% of the original AFC, only reaching a maximum 3–5 years after chemotherapy