Participants

Mean ± SD of Age

t-test

P value

Gs SDSs

Gs NSDSs

Mean

±SD

Mean

±SD

SDSs

24.22

0.878

24.12

1.201

−2.33

0.020*

GDs (Gs <5 years.)

28.79

0.884

27.43

1.073

−2.36

0.022*

GDs (Gs ≥5 years)

30.72

1.018

29.00

1.118

−0.874

0.386