After applying the inclusion and exclusion criteria, a total of 400 women who underwent IVF between January 2007 and December 2010 were included in the analysis. Patients were divided into 4 groups; 1) those that did not receive ICSI or LAH, 2) those that received ICSI only, 3) those that received LAH only, and 4) those that received both ICSI and LAH. Univariate and multivariate analyses were performed.