| 组别 | 平均光密度值 | t检验 | ||
| 切创创缘皮肤 | 自身空白对照皮肤 | t | P | |
| 生前15 min损伤组 | 0.300 × 10−3 ± 0.031 × 10−3 | 0.203 × 10−3 ± 0.016 × 10−3 | 6.240 | 0.000 |
| 生前0.5 h损伤组 | 0.501 × 10−3 ± 0.009 × 10−3 | 0.197 × 10−3 ± 0.019 × 10−3 | 31.754 | 0.000 |
| 生前1 h损伤组 | 0.914 × 10−3 ± 0.089 × 10−3 | 0.197 × 10−3 ± 0.009 × 10−3 | 17.829 | 0.000 |
| 生前2 h损伤组 | 1.476 × 10−3 ± 0.082 × 10−3 | 0.199 × 10−3 ± 0.018 × 10−3 | 34.120 | 0.000 |
| 生前4 h损伤组 | 1.868 × 10−3 ± 0.115 × 10−3 | 0.199 × 10−3 ± 0.013 × 10−3 | 32.169 | 0.000 |
| 生前8 h损伤组 | 2.252 × 10−3 ± 0.185 × 10−3 | 0.204 × 10−3 ± 0.014 × 10−3 | 24.638 | 0.000 |