| 组别 | 与死后即刻损伤组比较 | 与死后15 min损伤组比较 |
| 生前15 min损伤组 | P = 1.000 | P = 0.002 |
| 生前0.5 h损伤组 | P = 0.014 | P = 0.000 |
| 生前1 h损伤组 | P = 0.000 | P = 0.000 |
| 生前2 h损伤组 | P = 0.002 | P = 0.004 |
| 生前4 h损伤组 | P = 0.000 | P = 0.000 |
| 生前8 h损伤组 | P = 0.000 | P = 0.000 |