TABLE 3.

Mean and SD for C_t values for HPV titration series

HPV type	Ct value for the following no. of HPV copies
	108	107	106	105	104	103	102	101	100
16	NDa	ND	31 ± 1.0	34 ± 0.5	36 ± 0.3	42 ± 0.4	47 ± 1.6	50 ± 0.4	50 ± 0
18	17 ± 0.4	21 ± 0.3	25 ± 0.3	29 ± 0.4	33 ± 0.3	38 ± 0.8	42 ± 0.8	48 ± 2.7	ND
31	ND	ND	31 ± 3.6	33 ± 0.5	35 ± 0.5	41 ± 1.1	44 ± 0.9	47 ± 1.9	50 ± 0.8
33	ND	ND	31 ± 0.3	35 ± 0.7	41 ± 0.8	45 ± 1.2	48 ± 1.1	50 ± 0	50 ± 0.8
35	ND	ND	24 ± 1.5	28 ± 0.2	32 ± 0.4	34 ± 0.7	40 ± 0.8	45 ± 1.9	47 ± 2.5

^aND, not determined.