Dropout rate and cumulative birth outcomes in couples undergoing in vitro fertilization within a funded and actively managed system of care in New Zealand.

Objective: To determine the dropout rate between the first and second in vitro fertilization (IVF) cycles in a controlled population derived from a funded and actively managed system of care in New Zealand, including the reason for dropout and associated cumulative live birth rate.

Design: Retrospective cohort.

Setting: Multicenter IVF practice.