Observation group

40

6.250 ± 4.68

4.150 ± 3.82

15.300 ± 4.20

10.750 ± 1.86

104.000 ± 10.51

74.500 ± 7.486

t

−0.130

−0.539

0.580

−3.083

0.371

−5.286

P

0.897

0.593

0.566

0.004

0.713

<0.001