Table 1.

Nomenclature

Terms or equations	Description
All infections	It includes all subjects with HPV infections containing a specified HR-HPV genotype
Single infection	It refers to such infection with one HR-HPV genotype alone
Multiple infections	It refers to the difference between all infections and single infection for a HR-HPV type, i.e., HPV infected with two or more HR-HPV genotypes
All_Infection_Set	The dataset for all infections numbers of the 13 HR-HPV types in the four precancerous stages (see Additional file 1)
Single_Infection_Set	The dataset for single infection numbers of the 13 HR-HPV types in the four precancerous stages (see Additional file 1)
Multiple_Infection_Set	The dataset for multiple infections numbers of the 13 HR-HPV types in the four precancerous stages (see Additional file 1)