Cryopreservation of mouse embryos by vitrification: a meta-analysis.

A meta-analysis of cryopreservation studies vitrifying mouse embryos was undertaken to determine the treatment effect of vitrification. Treatment by vitrification decreased embryo viability compared with controls: the odds ratio was 9.02 (CI: 3.73-21.78; P < 0.001), a 24.90% (CI: 14.88-34.91; P < 0.001) reduction in risk was associated with embryos in the… (More)