TABLE 2.

Distribution of HPV6, -16, -18, -42, -53, and -68a discordant and concordant results, according to viral load

Genotype	Riska	No. of samples by viral loadb								Pc
		+−		+		++		+++
		Disc.	Conc.	Disc.	Conc.	Disc.	Conc.	Disc.	Conc.
6	L	3	1	2	3	0	10	0	23	<0.0001
16	H	3	1	2	7	0	30	0	14	<0.0001
18	H	3	1	1	3	0	4	0	0	0.0244
42	L	3	3	2	9	0	14	0	6	0.0038
53	L	7	0	2	1	0	8	0	21	<0.0001
68a	H	2	0	1	0	3	1	6	0	0.3481d
Total, including HPV68a		38	31	13	95	5	213	6	126	<0.0001
Total, excluding HPV68a		36	31	12	95	2	212	0	126	<0.0001

^aL, low risk, H, high risk.

^b+−, doubtful PCR and barely detectable RBH signal; +, weak; ++, medium; +++, strong PCR/RBH signal (6). The numbers indicated are pooled from single and multiple infections. Only the specific genotypes with ≥4 discordant results are shown. Disc., number of discordant cases; Conc., number of concordant cases. The attribution to the viral load category was based on the higher value for each pair (PGv1 versus PGv2 result).

^cChi-square analysis for trend addressing whether discordance is associated with viral load.

^dP > 0.05.