Table 1. Distribution of multiple HPV infections in HPV-positive subjects by numbers of cases.

Risk categories of HPV types	Number of HPV genotypes per subject				Total
	Two	Three	Four	Five
High-risk and low-risk	13	3	0	1	17
Low-risk only	1	0	0	0	1
High-risk only	128	24	3	0	155
Total number of cases	142	27	3	1	173

HPV, human papillomavirus.