Table 2.

Multivariate logistic regression analysis of the impact of storage time on pregnancy outcomes.

	P-value	aOR (95% CI)
Implantation rate
0–2 years	ref.
2–5 years	0.225	0.96 (0.89–1.03)
>5 years	0.020	0.82 (0.69–0.97)
Live birth rate
0–2 years	ref.
2–5 years	0.052	0.93 (0.87, 1.00)
>5 years	0.002	0.76 (0.64, 0.91)
Biochemical pregnancy rate
0–2 years	ref.
2–5 years	0.353	1.09 (0.91, 1.29)
>5 years	0.527	1.14 (0.75, 1.73)
Multiple pregnancy rate
0–2 years	ref.
2–5 years	0.786	1.02 (0.89, 1.17)
>5 years	0.465	1.14 (0.81, 1.59)
Ectopic pregnancy rate
0–2 years	ref.
2–5 years	0.07	1.12 (0.99, 1.27)
>5 years	0.314	1.17 (0.86, 1.61)
Miscarriage rate
0–2 years	ref.
2–5 years	0.324	1.07 (0.94, 1.21)
>5 years	0.089	1.31 (0.96, 1.8)