Table 1.
Factors associated with probability of contact in the study (n = 6,507)
| |
|
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 1stattempt |
|
|
|
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 |
* P for trend.