Non-O blood group and outcomes of in vitro fertilization.

ABSTRACT:

Purpose

Retrospective and cross-sectional studies suggested that non-O blood group may be associated with failures of in vitro fertilization (IVF), but data remain controversial. The aim of this observational cohort study was to prospectively evaluate the effect of non-O blood type on clinical outcomes of IVF.

Methods

Women < 40 years who underwent IVF and had ABO blood type recorded as part of the routine workup were eligible. The primary study outcome was live birth. Secondary outcomes included spontaneous abortion, positive pregnancy test, and clinical pregnancy.

Results

A total of 497 women with a mean age of 34.6 (standard deviation 3.2) years were included. The mean number of embryos transferred was 2.3 (standard deviation 0.6). The most common ABO blood types w

SUBMITTER: Di Nisio M 

PROVIDER: S-EPMC6063828 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature