Univariate analysis | Multivariate analysis (n = 6,231) | ||||||
---|---|---|---|---|---|---|---|
% | OR | 95% CI | P | OR | 95% CI | P | |
Woman’s age (years) | <0.001* | <0.001* | |||||
< 30 | 56 | 1 | 1 | ||||
30-34 | 64 | 1.36 | 1.20-1.55 | 1.36 | 1.18-1.56 | ||
35-39 | 64 | 1.38 | 1.20-1.59 | 1.51 | 1.30-1.75 | ||
≥ 40 | 64 | 1.42 | 1.18-1.70 | 1.65 | 1.34-2.03 | ||
Inclusion center | <0.001 | <0.001 | |||||
Marseille | 63 | 1 | 1 | ||||
Bois-Guillaume | 52 | 0.65 | 0.56-0.76 | 0.69 | 0.58-0.81 | ||
Sèvres | 61 | 0.94 | 0.79-1.11 | 0.99 | 0.82-1.20 | ||
Besançon | 55 | 0.72 | 0.60-0.87 | 0.84 | 0.69-1.02 | ||
Caen | 72 | 1.57 | 1.28-1.92 | 1.83 | 1.49-2.25 | ||
Cochin | 62 | 0.95 | 0.77-1.18 | 1.05 | 0.84-1.32 | ||
Clermont-Ferrand | 70 | 1.38 | 1.12-1.69 | 1.39 | 1.12-1.72 | ||
Montsouris | 69 | 1.31 | 1.07-1.60 | 1.32 | 1.08-1.63 | ||
Year of 1st oocyte retrieval | <0.001* | <0.001* | |||||
2000 | 58 | 1 | 1 | ||||
2001 | 61 | 1.20 | 1.06-1.36 | 1.16 | 1.01-1.33 | ||
2002 | 66 | 1.59 | 1.40-1.81 | 1.57 | 1.36-1.80 | ||
Origin of infertility | 0.22 | 0.82 | |||||
Female | 62 | 1 | 1 | ||||
Male | 63 | 1.07 | 0.94-1.20 | 0.99 | 0.87-1.13 | ||
Couple | 62 | 1.00 | 0.86-1.16 | 0.98 | 0.84-1.14 | ||
Unexplained | 59 | 0.89 | 0.76-1.05 | 0.92 | 0.77-1.10 | ||
Number of embryos obtained at 1st attempt | 0.004* | <0.001* | |||||
0-1 | 59 | 1 | 1 | ||||
2-5 | 62 | 1.09 | 0.95-1.25 | 1.08 | 0.93-1.25 | ||
> 5 | 64 | 1.22 | 1.06-1.41 | 1.29 | 1.11-1.51 | ||
Number of attempts | <0.001* | <0.001* | |||||
1 | 56 | 1 | 1 | ||||
2-4 | 64 | 1.43 | 1.28-1.58 | 1.51 | 1.35-1.69 | ||
>4 | 76 | 2.59 | 2.08-3.23 | 2.98 | 2.37-3.76 | ||
Result of IVF | |||||||
No live birth | 60 | 1 | 1 | ||||
≥ 1 live birth | 65 | 1.27 | 1.15-1.41 | <0.001 | 1.34 | 1.20-1.50 | <0.001 |