Table 3 Serial changes in echocardiographic findings in the three groups

16^thwk

24^thwk

48^thwk

16^thwk

24^thwk

48^thwk

16^thwk

24^thwk

48^thwk

29.7 ± 1.5

30.0 ± 1.0

32.1 ± 1.1

28.8 ± 0.6

29.2 ± 1.0

32.1 ± 1.1

28.6 ± 0.7

30.5 ± 0.6

31.8 ± 1.0

9.5 ± 0.1

9.3 ± 0.1

9.1 ± 0.1

9.3 ± 0.1

9.3 ± 0.1

9.6 ± 0.1

9.4 ± 0.1

9.5 ± 0.1

9.4 ± 0.1

1.8 ± 0.1

1.7 ± 0.0

2.1 ± 0.0^a

1.7 ± 0.0

1.7 ± 0.0

1.9 ± 0.0^b

1.7 ± 0.0

1.6 ± 0.0

2.0 ± 0.0

1.6 ± 0.1

1.5 ± 0.1

1.4 ± 0.1

1.6 ± 0.1

1.3 ± 0.0

1.3 ± 0.1

1.5 ± 0.1

1.3 ± 0.1

1.3 ± 0.1