Table 5.

Logistic regression model of the possible factors associated with live birth rate in vitrified blastocyst cycles on egg donation program, All.

	OR	95% CI	P value
Patient age	0.97	0.94–1.00	0.05
Donor age	0.98	0.94–1.02	0.34
Sperm quality	1.15	0.77–1.72	0.48
Top vs. fair	1.48	0.97–2.26	0.06
Good vs. fair	1.35	0.94–1.92	0.09
Fertilization rate	0.75	0.28–2.06	0.59
Cleavage rate	0.87	0.23–3.35	0.84
Weighted score day 3	1.27	0.85–1.89	0.23
Blastulation rate	0.7	0.23–2.1	0.52
Freezing rate	1.00	0.99–1.01	0.18
Day 5 vs. day 6	2.26	1.19–4.28	0.01
Total cycles	0.88	0.80–0.96	< 0.001