Multivariate analysis | |||
---|---|---|---|
OR | 95% CI | P | |
Woman’s age (years) | <0.001* | ||
< 30 | 1 | ||
30-34 | 1.46 | 1.21-1.77 | |
35-39 | 1.50 | 1.23-1.83 | |
≥ 40 | 1.69 | 1.33-2.15 | |
Inclusion center | <0.001 | ||
Marseille | 1 | ||
Bois-Guillaume | 0.79 | 0.63-0.97 | |
Sèvres | 1.06 | 0.83-1.37 | |
Besançon | 0.99 | 0.76-1.30 | |
Caen | 1.83 | 1.40-2.41 | |
Cochin | 1.07 | 0.82-1.39 | |
Clermont-Ferrand | 1.18 | 0.89-1.56 | |
Montsouris | 1.56 | 1.18-2.05 | |
Year of 1st oocyte retrieval | <0.001* | ||
2000 | 1 | ||
2001 | 1.13 | 0.94-1.35 | |
2002 | 1.43 | 1.19-1.72 | |
Origin of infertility | 0.206 | ||
Female | 1 | ||
Male | 1.03 | 0.97-1.23 | |
Couple | 0.90 | 0.74-1.09 | |
Unexplained | 0.83 | 0.67-1.04 | |
Number of embryos obtained at 1st attempt | 0.009* | ||
0-1 | 1 | ||
2-5 | 1.10 | 0.93-1.31 | |
> 5 | 1.29 | 1.06-1.55 | |
Number of attempts | <0.001* | ||
1 | 1 | ||
2-4 | 1.59 | 1.37-1.84 | |
>4 | 3.76 | 2.78-5.08 |