Table 7.

Results of amplified oral bacteria using the OB mRT-PCR kit in forensic DNA samples.

No.	Sample source (evidence)	Storage	Case type	Conc. of total DNA	S. salivarius			S. sanguinis			N. subflava			Final conclusion
					P/N	Ct		P/N	Ct		P/N	Ct
						M	Std		M	Std		M	Std
1	Saliva on soil	13 years	Homicide	1.33	P	26.9	0.1	P	31.9	0.3	P	27.7	0.2	P
2	Saliva on wastepaper	11 years	Rape	0.53	P	28.4	0.0	P	34.2	0.8	P	34.5	0.2	P
3	Cigarette butt	11 years	Thief	0.33	P	29.8	0.2	P	32.2	0.6	N			P
4	Saliva on box	8 years	Thief	0.59	P	35.9	0.1	P	35.5	0.3	P	30.6	0.3	P
5	Cigarette butt	7 years	Thief	0.14	N			N			P	35.7	0.4	N
6	Bite mark on food	3 years	Thief	4.76	N			P	33.5	0.3	P	35.1	0.3	P
7	Saliva on glass	1 year	Fraud	0.85	P	32.9	0.2	N			P	31.7	0.3	P
8	Saliva on window	1 year	Thief	0.13	P	32.3	0.3	P	33.2	0.1	P	34.3	0.2	P
9	Tooth brush	8 months	Rape	2.64	P	34.7	0.4	P	31.9	0.2	N			P
10	Cigarette butt	6 months	Rape	0.25	N			P	35.4	0.1	P	33.4	0.2	P
11	Blood on soli	11 years	Homicide	0.93	N			N			N			N
12	Blood on gloves	8 years	Homicide	0.97	N			N			N			N
13	Vaginal fluid	13 years	Homicide	5.83	P	32.7	0.2	N			N			N
14	Vaginal fluid	9 years	Rape	0.13	N			N			N			N
15	Semen	13 years	Rape	3.46	N			N			N			N
16	Semen	7 years	Rape	1.8	N			N			N			N

Conc.: concentration, P: positive, N: negative, M: mean, Std: standard deviation.