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Table 2 Descriptive statistics of morphological placental biomarkers and correlationa with gestational age during mid-gestation (n = 61)

From: Association of polybrominated diphenyl ether (PBDE) levels with biomarkers of placental development and disease during mid-gestation

       

Gestational Age (Weeks)

Morphological Biomarker

n

Mean

Median

SD

Min

Max

Tau

p-Value

Average White Blood Cell / image

61

212

157

174

0.00

950

−0.12

0.179

% Floating Villi with Fibrinoid Deposition (binary)

61

13.4

11.8

10.4

0.10

47.1

−0.28

0.001

% Fibrinoid Deposition in Basal Plate (area)

61

22.6

20.0

19,6

0.00

78.0

0.02

0.866

% CTB-modulated Uterine Spiral Arteries

38

71.7

80.6

30.4

0.00

100

−0.14

0.240

  1. CTB Cytotrophoblast, SD Standard deviation
  2. a Non-parametric rank order correlation assessed using Kendall’s Tau Correlation Coefficient