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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.