Skip to main content

Table 1 Factors associated with probability of contact in the study ( n= 6,507)

From: Who does not participate in a follow-up postal study? a survey of infertile couples treated by in vitro fertilization

  

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

  1. * P for trend.