ITGB1 and cervical squamous intraepithelial neoplasia: Figure 5 compares the average fluorescence intensity in HR-HPV 16- and 18-positive or -negative samples, which was higher in the positive ones, according to a higher β1 integrin/CD29 concentration in the CIN groups where HR-HPV 16- and 18-were detected (p = 0.0292, 0.0367, and 0.0357, respectively, for CIN3, CIN2, and CIN1).