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Table 4 Correlation of 1 st trimester log PAPP-A MOM with log sFlt-1 at serial time points (unadjusted)

From: First trimester PAPP-A levels correlate with sFlt-1 levels longitudinally in pregnant women with and without preeclampsia

Time point of sFlt-1 measurement (EGA)

Preeclamptic pregnancies (n = 18)a

Normal pregnancies(n = 405)b

8–10 weeks

r = 0.35

p = 0.2

r = 0.26

p <0.0001

17–19 weeks

r = 0.50

p = 0.05

r = 0.32

p <0.0001

23–25 weeks

r = 0.33

p = 0.2

r = 0.27

p <0.0001

34–35 weeks

r = 0.18

p = 0.5

r = 0.19

p = 0.0002

  1. aFor PE pregnancies at time point 17–19 weeks, n = 16.
  2. bFor normal pregnancies n = 382, 390 and 394 for time points 17–19 weeks, 23–25 weeks, and 34–35 weeks, respectively.
  3. r, Pearson’s correlation coefficient.