组别

治疗前

治疗后1 wk

治疗后1 mo

治疗后3 mo

治疗后6 mo

A组

15.88 ± 2.031

16.75 ± 3.151

16.13 ± 2.1

16 ± 2.204

15.5 ± 3.162

B组

15.13 ± 2.167

15.5 ± 2.449

15.25 ± 3.105

16.25 ± 1.909

15.63 ± 2.722

t

0.714

0.886

0.66

−0.243

−0.085

P

0.487

0.391

0.52

0.812

0.934