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Table 1 Expected value, lower and upper bounds of a 95 % confidence interval on Basso SFH-chart [16]* between 13 and 42 weeks of pregnancy complicated by diabetes and hyperglycemia

From: Validation of a symphysis-fundal height chart developed for pregnancy complicated by diabetes and hyperglycemia: an observational study

FH = 1.082 + 0.966*week

FH (lower bound) = 0.629 + 0.95*week

FH (upper bound) = 1.535 + 0.981*week

  

Confidence interval 95 %

Week

Expected FH

Lower bound

Upper bound

13

13.64

12.98

14.29

14

14.61

13.93

15.27

15

15.57

14.88

16.25

16

16.54

15.83

17.23

17

17.50

16.78

18.21

18

18.47

17.73

19.19

19

19.44

18.68

20.17

20

20.40

19.63

21.16

21

21.37

20.58

22.14

22

22.33

21.53

23.12

23

23.30

22.48

24.10

24

24.27

23.43

25.08

25

25.23

24.38

26.06

26

26.20

25.33

27.04

27

27.16

26.28

28.02

28

28.13

27.23

29.00

29

29.10

28.18

29.98

30

30.06

29.13

30.97

31

31.03

30.08

31.95

32

31.99

31.03

32.93

33

32.96

31.98

33.91

34

33.93

32.93

34.89

35

34.89

33.88

35.87

36

35.86

34.83

36.85

37

36.82

35.78

37.83

38

37.79

36.73

38.81

39

38.76

37.68

39.79

40

39.72

38.63

40.78

41

40.69

39.58

41.76

42

41.65

40.53

42.74