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Table 4 Serum sFlt-1 concentration (pg/ml) (geometric mean, 95% confidence interval) at 12 + 0 - 14 + 0, 18 + 0 - 20 + 0, and 26 + 0 - 28 + 0 weeks of gestation in women with late-onset preeclampsia group (onset ≥ 34 + 0 weeks of gestation)

From: Vasoactive agents for the prediction of early- and late-onset preeclampsia in a high-risk cohort

Weeks + days of gestation

Late-onset pre-eclampsia n = 21

Severe late-onset preeclampsia n = 8

Non-severe late-onset preeclampsia n = 13

12 + 0 – 14 + 0

925 (760–1124)

1330* (990–1670)

810 (620–1000)

18 + 0 – 20 + 0

918 (773–1091)

1220* (950–1490)

810 (650–980)

26 + 0 – 28 + 0

1054 (887–1253)

1480* (1080–1870)

920 (750–1090)

  1. Severe preeclampsia was defined as systolic blood pressure ≥ 160 mmHg and/or diastolic ≥ 110 mmHg in two consecutive measurements and/or proteinuria > 5 g in 24 hour urine collection.
  2. * p < 0.05 compared to late-onset non-severe preeclampsia subgroup.