Table 2 Discrimination results for the ATR FT-IR spectra of aged BFs (1 day to 8 months) and unexpected samples using the dichotomous classification tree followed by Q-tests for each BF group.
Actual Body Fluid Type | Predicted Body Fluid Type | ||||||
|---|---|---|---|---|---|---|---|
Blood | Saliva | Semen | Urine | Sweat | Outliera | ||
Blood | 1 day | 100 | 0 | 0 | 0 | 0 | 0 |
1 week | 100 | 0 | 0 | 0 | 0 | 0 | |
1 month | 100 | 0 | 0 | 0 | 0 | 0 | |
3 months | 98 | 0 | 0 | 0 | 0 | 2 | |
8 months | 98 | 0 | 0 | 0 | 0 | 2 | |
Saliva | 1 day | 0 | 90 | 0 | 0 | 0 | 0 |
1 week | 0 | 90 | 0 | 0 | 0 | 0 | |
1 month | 0 | 88 | 0 | 0 | 0 | 2 | |
3 months | 0 | 90 | 0 | 0 | 0 | 0 | |
5 months | 0 | 85 | 0 | 0 | 0 | 5 | |
Semen | 1 day | 0 | 0 | 100 | 0 | 0 | 0 |
1 week | 0 | 0 | 100 | 0 | 0 | 0 | |
1 month | 0 | 0 | 100 | 0 | 0 | 0 | |
3 months | 0 | 0 | 100 | 0 | 0 | 0 | |
5 months | 0 | 0 | 100 | 0 | 0 | 0 | |
Urine | 1 day | 0 | 0 | 0 | 100 | 0 | 0 |
1 week | 0 | 0 | 0 | 91 | 0 | 9 | |
1 month | 0 | 0 | 0 | 99 | 0 | 1 | |
3 months | 0 | 0 | 0 | 99 | 0 | 1 | |
5 months | 0 | 0 | 0 | 95 | 0 | 5 | |
Sweat | 1 day | 0 | 0 | 0 | 0 | 75 | 0 |
1 week | 0 | 0 | 0 | 0 | 75 | 0 | |
1 month | 0 | 0 | 0 | 0 | 73 | 2 | |
3 months | 0 | 0 | 0 | 0 | 66 | 9 | |
5 months | 0 | 0 | 0 | 0 | 52 | 23 | |
Non-BF | 0 | 0 | 0 | 0 | 0 | 70 | |
