Table 3 Variable assignment method.

From: Nomogram for predicting postpartum hemorrhage in women with hypertensive disorders of pregnancy

Variables

Variables

Value assignment

SBP

X1

Continuous variable

Proteinuria

X2

No = 1, Yes = 2

APTT

X3

Continuous variable

FIB

X4

Continuous variable

25(OH)D

X5

Continuous variable

HGF

X6

Continuous variable

ET

X7

Continuous variable

PPH in patients with HDP

Y

Without PPH = 0, With PPH = 1

  1. SBP, systolic blood pressure; APTT, activated partial thromboplastin time; FIB, fibrinogen; 25(OH)D, 25-hydroxyvitamin D; HGF, hepatocyte growth factor; ET, Endothelin.