Attribute of participants

Experimental group

Control group

Group difference

n

Mean

SD

Range

n

Mean

SD

Range

t-value

p

Age

74

29.3

5.0

17 - 38

127

29.3

5.6

17 - 45

−0.082

0.935

Stature (cm)

74

157.2

5.0

148 - 170

127

157.7

5.4

145 - 173

0.549

0.584

Body weight* (kg)

72

51.7

9.1

37 - 96

124

51.9

9.0

37 - 98

0.197

0.844

Delivery weeks

62

40.9

1.3

38 - 43

101

41.1

1.3

37 - 43

0.752

0.453

Birth weight (kg)

62

3.01

0.34

2.37 - 3.89

102

3.00

0.36

2.04 - 4.02

−0.101

0.920