Skip to main content

Table 4 Relapse rates before, during, and after pregnancy

From: Outcomes of pregnancy in Egyptian women with multiple sclerosis in the new treatment era: a multi-center retrospective observational study

  No. pregnancies No. relapses Rate of relapse/pregnancies/ya P value*
2 years before pregnancy 63 84 0.36 (0.32–0.41)
Pregnancy     
 First trimester 2 2 0.07 (0.04–0.15)  < 0.001
 Second trimester 3 3 0.10 (0.03–0.17)  < 0.001
 Third trimester 6 6 0.15 (0.08–0.24)  < 0.001
Year after pregnancy     
 Months 1–3 8 8 0.27 (0.16–0.39) 0.037
 Months 4–6 11 11 0.38 (0.26–0.52) 0.990
 Months 7–9 10 11 0.38 (0.26–0.52) 0.751
 Months 10–12 7 7 0.24 (0.17–0.38) 0.023
  1. aMean and 95% confidence intervals
  2. *Compared with 2 years before pregnancy, generalized estimation equations were used to account for women with multiple pregnancies. Level of significance is set when the P-value < 0.05