Table 4 The Chi-square trend test of coagulation indexes with gestational age.

From: Reference intervals for coagulation parameters in non-pregnant and pregnant women

Test (units)

χ2

P

AT (%)

5.223

0.022

PC (%)

39.000

 < 0.001

fPS (%)

10.753

0.001

LA normalized ratio

25.124

 < 0.001

D-dimer (μg/ml)

169.279

 < 0.001

FDP (μg/ml)

209.087

 < 0.001

FVII (%)

105.508

 < 0.001

FVIII (%)

66.111

 < 0.001

  1. AT antithrombin, PC protein C, fPS free protein S, LA normalized ratio lupus anticoagulant normalized ratio, FDP fibrin/fibrinogen degradation products; FVII factor VII, FVIII factor VIII.
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