Skip to main content

Table 4 Accuracy of erythrogram and ferritin to discriminate iron-responsive and not iron-responsive pregnant women (n 139)

From: Could the erythrocyte indices or serum ferritin predict the therapeutic response to a trial with oral iron during pregnancy? Results from the Accuracy study for Maternal Anaemia diagnosis (AMA)

Index-tests

LR +

LR –

Diagnostic Odds

AUC

Ratio (CI)

Ratio (CI)

Ratio (CI)

Area (CI)

Red blood cell count

(<3.8•1012cel/L)

1.12 (1.08;1.16)

0.60 (0.30;1.19)

1.86 (0.65;5.33)

0.51 (0.40;0.61)

HTC

(<32.0 %)

1.12 (1.02;1.24)

0.86 (0.72;1.03)

1.30 (0.61;2.80)

0.55 (0.44;0.66)

Hb

(<10.5 g/dL)

1.15 (1.01;1.30)

0.87 (0.75;1.01)

1.15 (0.62;2.81)

0.58 (0.47;0.70)

MCV

(<81.0 fL)

1.38 (0.36;5.26)

0.94 (0.88;1.01)

1.47 (0.54;3.98)

0.51 (0.40;0.62)

MCH

(<26.0 pg)

1.48 (0.38;5.73)

0.93 (0.87;0.99)

1.60 (0.58;4.38)

0.57 (0.47; 0.68)

MCHC

(<32.0 g/dL)

1.95 (1.23;3.07)

0.81 (0.75;0.88)

2.40 (1.01;5.69)

0.64 (0.54;0.74)

RDW

(>14.0 %)

0.88 (0.34;2.32)

1.04 (0.96;1.12)

0.85 (0.34;2.10)

0.51 (0.41;0.62)

Reticulocyte (n = 122)

(<1.0 %)

0.99 (0.20;4.89)

1.00 (0.91;1.10)

0.99 (0.18;5.38)

0.58 (0.47;0.68)

Serum ferritin (n = 132)

(<12.0 ng/mL)

1.33 (0.90;1.97)

0.88 (0.80;1.97)

1.50 (0.65;3.46)

0.61 (0.50;0.71)

  1. LR (Likelihood Ratio), AUC (Area Under Receiver Operating Characteristic Curve), CI 95 % (Confidence Interval), HTC (haematocrit), Hb (haemoglobin concentration), MCV (mean corpuscular volume), MCH (mean corpuscular haemoglobin), MCHC (mean corpuscular haemoglobin concentration), RDW (red blood cells distribution width)