Group Variables

Control (n = 42)

Study (n = 42)

PTB

(<37 GW)

<34 GW

Number

0

4 (9.4%)

Duration

0

32.9 ± 0.14

>34 - <37 GW

Number

3 (7.1%)

9 (21.4%)*

Duration

35 ± 0.6

35.75 ± 0.7

Total

Number

3 (7.1%)

13 (31%)*

Duration

35 ± 0.6

35 ± 1.5

>37 GW

Number

39 (92.9%)

29 (69%)

Duration

39.1 ± 0.8

38.4 ± 0.56

Total

38.8 ± 1.3

37.2 ± 1.8*