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. Author manuscript; available in PMC: 2012 Aug 1.
Published in final edited form as: Placenta. 2011 Jun 8;32(8):598–602. doi: 10.1016/j.placenta.2011.05.006

Table 2.

Median distribution of PP13, PAPP-A and uterine artery PI for the study population.

Control (n=410) All Preeclampsia
(n=42)
Early
Preeclampsia
(n=12)
PP13 (median,
IQR)
0.98 (0.59-1.34) 0.66 (0.34-
1.11)*
0.68 (0.18-
1.00)*
PAPP-A
(median, IQR)
1.18 (0.81-1.59) 0.85 (0.62-
1.13)*
1.05 (0.69-1.61)
Uterine artery PI
(median, IQR)
1.55 (1.23-1.88) 1.52 (1.25-1.70) 1.72 (1.42-2.24)

IQR= interquartile range.

*

p<0.05 when compared to the control group.