Gestational Sac Diameter  versus Gestational Age

                  Daya S et.al. Can Med Assoc J 1991;144:441

 

Mean sac

diameter

95%

Confidence interval

Mean

95%

Confidence interval

2

4.5

5

5.5

3

4.6

5.1

5.6

4

4.8

5.2

5.7

5

4.9

5.4

5.8

6

5

5.5

6

7

5.1

5.6

6.1

8

5.3

5.7

6.2

9

5.4

5.9

6.3

10

5.5

6

6.5

11

5.6

6.1

6.6

12

5.8

6.2

6.7

13

5.9

6.4

6.8

14

6

6.5

7

15

6.2

6.6

7.1

16

6.3

6.7

7.2

17

6.4

6.9

7.3

18

6.5

7

7.5

19

6.6

7.1

7.6

20

6.8

7.3

7.7

21

6.9

7.4

7.8

22

7

7.5

8

23

7.2

7.6

8.1

24

7.3

7.8

8.2