Figure 3

Cervical conization size (unit: cm3, box & whiskers, min to max) in asymptomatic women with singleton pregnancies: (a) Adequate cervical length (CL > 25 mm) vs Short cervix (CL ≤ 25 mm), groups; (b) Progesterone-only (POG) vs Progesterone-Pessary (PPG), groups. p-values were achieved using Mann–Whitney two-tailed t-test with Alpha = 0.05.