Figure 2. Cumulative live birth rates in different age groups. (A) The optimal estimated cumulative live birth rates over 4 complete cycles. (B) The conservative estimated cumulative live birth rates over 4 complete cycles. CLBR, cumulative live birth rate. Notes: *The optimal estimated CLBR assumes that women who discontinued IVF/ICSI treatments would have live-birth rate similar to those continuing treatments. The conservative estimated CLBR assumes that women who discontinued IVF treatments would have a live-birth rate of zero if they continued treatments.