TABLE 4.

Multivariate logistic-regression analysis for assessment of independent risk factors for late abortion or preterm birth at <34 weeks of gestation

Risk factorβPOR (95% CI)a
Constant−0.02
U. parvum1.110.0353.04 (1.08-8.52)
Use of penicillin or cefatrizine at <22 wk1.440.0034.24 (1.63-10.00)
Past history of preterm birth2.350.00110.44 (2.69-40.49)
  • a OR, odds ratio; CI, confidence interval.