Distribution of viral load for 6 HR-HPV types in both groups of patients. A. Absolute viral load. B Normalised viral load. The dotted line indicates the median; the box represents the interquartile range (IQR). The whiskers extending from the boxes are the upper and lower limits. Diamond markers represent extreme values. No statistically significant differences were observed regarding DNA load distribution of each HPV type between both groups of patients (Mann–Whitney U test). CIN: cervical intraepithelial neoplasia.