Abstract
Excerpt: Patients making final cryopreserved embryo disposition decisions from 2007 - 2013 at a private reproductive endocrine practice were studied. An IRB-approved chart review waiver was granted. Up to 132 variables were collected for each record. Parametric and nonparametric methods such as t-test, weighted least squares regression and chi-square test for independence were performed, all at the p ≤ .05 level of significance. A sample size of 85 yielded an 80% power of finding a significant difference at the alpha = 0.05.
