Research Article

Comparison of Pregnancy Outcomes of History-Indicated and Ultrasound-Indicated Cervical Cerclage: A Retrospective Cohort Study

Table 3

Comparison of cervical length before cerclage among history and ultrasound indicated patients.

IndicationCervical length before cerclage (cm)
Shapiro-Wilk statistics ( value)Mann–Whitney
value ( value)

History0.62 (<0.01)98.50 (0.48)
Ultrasound