Clinical Study

Human Papilloma Virus Persistence after Cone Excision in Women with Cervical High Grade Squamous Intraepithelial Lesion: A Prospective Study

Table 2

The value obtained by comparing HPV 16 to the other HPV types using test.

value, obtained after applying a chi square test
HPV typesBefore conization6 months12 months18 months

16 versus 18<0.001<0.0010.0230.02
16 versus 31<0.001<0.0010.0060.02
16 versus 33<0.001<0.0010.0060.02
16 versus 35<0.001<0.0010.0060.02
16 versus 45<0.001<0.0010.0060.02
16 versus 520.0030.0020.0060.02
16 versus 58<0.001<0.0010.0060.02
16 versus 6<0.001<0.0010.0630.178
16 versus 11<0.001<0.0010.0230.073
16 versus other types <0.001<0.0010.0060.02

Significant differences (with 0.05; 0.01; and 0.001 level of significance).
Insignificant differences (with 0.05 level of significance).
From the second table we can see that the most frequent HPV type is 16. More than that, this HPV type seems to be the most persistent and dangerous. We can see that there are extremely significant differences between HPV 16 and the other HPV types, in most of the cases.