Table 3. Multivariate logistic regression to verify the factors associated with the endpoint clinical pregnancy.
Factor ODDS RATIO CI 95%
Female age 0.915 0.807 1.039
Endometriosis Factor Infertility 0.974 0.393 2.410
Male Factor Infertility 1.376 0.574 3.297
Group (Birefringence vs. Conventional) 2.305 1.108 4.795

CI: Confidence Interval.