Association of number of retrieved oocytes with live birth rate and birth weight: an analysis of 231,815 cycles of in vitro fertilization.

ABSTRACT:

Objective

To determine if number of retrieved oocytes correlates with live birth rate and incidence of low birth weight (LBW).

Design

Retrospective cohort.

Setting

Not applicable.

Patient(s)

Women undergoing fresh embryo transfer with the use of either autologous (n = 194,627) or donor (n = 37,188) oocytes whose cycles were reported to the Society for Assisted Reproductive Technology in the years 2004-2010.

Intervention(s)

None.

Main outcome measure(s)

Live birth rate, birth weight, birth weight z-score, LBW.

Result(s)

For both autologous and donor oocyte cycles, increasing number of retrieved oocytes paralleled live birth rate and embryos available for cryopreservation in most analyses, with all models adjusted for age and previous births.

SUBMITTER: Baker VL 

PROVIDER: S-EPMC4415984 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature