Cumulative live birth rates in more than 3,000 patients with poor ovarian response: a 15-year survey of final in vitro fertilization outcome

For women with POR, the CLBR declined with increasing age. Women with advanced age (≥38 years) achieved a significantly lower CLBR than young poor responders (<35 years). Very low CLBR was associated with women aged >43 years old. Natural cycle IVF is of no benefit for these patients.