Table5 Table5

Table 4

Table 4:
Characteristics of non conception cycles with identification of reference days.
 

a) With BBT reference day*

 

Centres

No. of
cycles

Total length
of cycles

Duration of phases
Preovulatory Postovulatory

     

Mean

(S.d.)

Mean

(S.d.)

Mean

(S.d.)

 

Verona

982

 

29.0

(5.04)

16.4

(5.01)

12.6

(2.09)

Milan

2711

 

29.1

(3.89)

16.7

(3.93)

12.4

(2.09)

Lugano

44

 

27.2

(2.24)

14.7

(2.73)

12.5

(2.19)

Paris

620

 

29.3

(4.92)

17.1

(4.91)

12.2

(1.08)

Düsseldorf

574

 

28.3

(3.73)

16.3

(3.68)

12.0

(1.89)

London

224

 

29.8

(4.68)

17.2

(4.56)

12.5

(2.46)

Brussels

271

 

28.7

(3.63)

16.3

(3.74)

12.4

(1.94)

Total European

5426

 

29.0

(4.26)

16.6

(4.26)

12.4

(2.07)

                 

Auckland

165

 

29.5

(4.37)

16.7

(4.64)

12.8

(2.36)

 

b) With mucus reference day*

 

Centres

No. of cycles

Total length of cycles

Duration of phases
Preovulatory Postovulatory

     

Mean

(S.d.)

Mean

(S.d.)

Mean

(S.d.)

 

Verona

1084

 

29.1

5.04

15.6

4.91

13.4

2.22

Milan

2913

 

29.1

3.95

16.6

3.93

12.5

2.07

Lugano

44

 

27.2

2.24

14.2

2.48

13.0

2.19

Paris

534

 

29.2

5.01

16.9

5.12

12.3

2.04

Düsseldorf

610

 

28.3

3.69

15.9

3.52

12.4

2.01

London

245

 

29.3

4.29

17.4

4.04

11.9

2.54

Brussels

301

 

28.6

3.56

15.2

3.68

13.4

2.07

Total European

5731

 

29.0

4.25

16.3

4.23

12.7

2.16

                 

Auckland

197

 

29.0

4.16

16.2

4.21

12.8

2.43

 

* Conventionally: Preovulatory phase = until the last day of hypothermia or, respectively, the peak mucus day, included; Postovulatory phase = the remaining part of the cycle.

 

Table5 Table5

Daily Fecundability: First Results from a New Data Base
Bernardo Colombo, Guido Masarotto
© 2000 Max-Planck-Gesellschaft ISSN 1435-9871
http://www.demographic-research.org/Volumes/Vol3/5