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Table 2 Adjusted odds ratios (OR) and 95% confidence interval (CI) for the risk of preterm birth

From: Cerclage is associated with the increased risk of preterm birth in women who had cervical conization

  OR 95% CI
Age (years) 1.0 0.9, 1.0
Cerclage (yes) 2.6 1.4, 4.9
Multiple pregnancy (yes) 10.5 4.4, 25.2
Years since delivery from conization (years) 0.9 0.7, 1.2
  1. The model is adjusted for variables in the Table; 95% CI, 95% confidence interval