Group | n | 0 w | 2 w | 4 w | 6 w |
HFZS | 35 | 0.160 ± 0.017 | 0.188 ± 0.017 | 0.540 ± 0.109**△△ | 1.190 ± 0.432**△△ |
HF | 32 | 0.161 ± 0.017 | 0.171 ± 0.021 | 0.438 ± 0.111 | 0.874 ± 0.412 |
ZS | 31 | 0.158 ± 0.015 | 0.158 ± 0.016 | 0.401 ± 0.086 | 0.818 ± 0.371 |