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Table 3 Risk factors of preterm birth

From: Pre-pregnancy serum complement C3 level is a predictor of preterm birth for pregnancies with systemic lupus erythematosus

 

Odds ratio

95%CI

p value

Age at pregnancy (per unit)

1.134

0.977–1.328

0.086

History of lupus nephritis

6.267

1.750–22.443

0.005

Low serum complement 3 (< 85 IU/ml)

4.754

1.373–16.461

0.014

Past use of steroid pulse therapy

2.640

0.708–9.845

0.148

  1. A multivariate logistic regression model. A p value of < 0.05 was considered significant