Fig. 2From: Endogenous oestradiol and progesterone as predictors of oncogenic human papillomavirus (HPV) persistenceBaseline oestradiol levels in cleared (n = 14) vs. persistent (n = 6) high-risk human papillomavirus (HR-HPV) cases (12-month follow-up). Morning oestradiol refers to the sample collected immediately upon awakening whereas daily oestradiol represents the mean of the 11 am, 2 pm, and 5 pm samples; *p < .05, **p < .01Back to article page