| Group | n | d3 | n | d7 | 
| N组 | 5 | 0.00 | 5 | 0.00 | 
| C组 | 10 | 0.8 ± 0.45 | 10 | 2.7 ± 0.67 | 
| H组 | 10 | 0.4 ± 0.55 | 10 | 1.7 ± 0.45 | 
| F | 10.29 | 13.77 | ||
| p | <0.01 | <0.01 |