Skip to main content


Figure 1 | BMC Medicine

Figure 1

From: Reduced acquisition and reactivation of human papillomavirus infections among older women treated with cryotherapy: results from a randomized trial in South Africa

Figure 1

Flowchart of study design and sampling scheme. (a) All women also received cytology prior to randomization, but only the visual inspection with acetic acid (VIA) result and randomization arm determined whether cryotherapy was performed. (b) All women underwent colposcopy/biopsy at 6, 12, 24, and 36 months; if biopsy-confirmed CIN2+ was detected, women were treated with loop electrosurgical excision procedure (LEEP) and exited the study.

Back to article page