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Table 6 Interobserver agreement and intra/interobserver reliability for measuring the frontal antero-posterior diameter (FAPD) and occipito-frontal diameter (OFD) with ultrasonography

From: Frontal lobe development in fetuses with growth restriction by using ultrasound: a case–control study

Parameters

FAPD

OFD

Interobserver agreement

 Mean difference 95% CI (mm)

0.06 (-0.55 ~ 0.42)

-0.40 (-1.37 ~ 0.58)

 95% LOA (mm)

-2.60 ~ 1.64

-5.50 ~ 3.03

Intraobserver ICC (95% CI)

0.98 (0.97 ~ 0.99)

0.98 (0.97 ~ 0.99)

Interobserver ICC (95% CI)

0.97 (0.95 ~ 0.99)

0.98 (0.97 ~ 0.99)

  1. CI Confidence interval, LOA Limits of agreement, ICC Intraclass correlation coefficient