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Table 2 Intra- and inter-observer reproducibility on the facial profile marker measurements

From: Ultrasound measurements of fetal facial profile markers and their associations with congenital malformations during early pregnancy

 

Observer 1

ICC (95% CI)

Observer 2

ICC (95% CI)

Observer 1 and 2

ICC (95% CI)

FMF

0.897(0.896 ~ 0.915)

0.952(0.902 ~ 0.977)

0.885(0.773–0.944)

MNM

0.906(0.886 ~ 0.922)

0.943(0.884 ~ 0.997)

0.888(0.778–0.945)

FMA

0.933(0.920 ~ 0.945)

0.870(0.746 ~ 0.936)

0.830(0.673–0.915)

IFA

0.909(0.890 ~ 0.924)

0.938(0.874 ~ 0.970)

0.812(0.642–0.906)

FSD

0.942(0.930 ~ 0.952)

0.994(0.987 ~ 0.997)

0.961(0.919–0.981)

FPL

0.979(0.975 ~ 0.983)

0.878(0.759 ~ 0.940)

0.887(0.776–0.944)

PMD

0.979(0.974 ~ 0.983)

0.879(0.956 ~ 0.990)

0.879(0.762–0.941)

  1. CI, confidence interval; FMA, facial maxillary angle; FMF, frontomaxillary facial angle; FSD, frontal space distance; ICC, intraclass correlation coefficient; IFA, inferior facial angle; MNM, maxilla-nasion-mandible angle; PL, profile line distance; PMD, palatine maxillary diameter
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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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