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Table 1 Intra-operator and inter-operator agreement of IFA, MNM angle, FMA and PL distance

From: Ultrasonographic study of fetal facial profile markers during the first trimester

 

operator 1

operator 2

operator 1 and 2

 

mean

95 %LoA

mean

95 %LoA

mean

95 %LoA

IFA

-0.02

-6.10 ~ 6.05

-0.95

-6.75 ~ 4.85

2.34

-4.57 ~ 9.25

MNM angle

-0.08

-1.71 ~ 1.55

0.24

-1.39 ~ 1.87

-0.068

-1.53 ~ 1.39

FMA

0.11

-5.14 ~ 5.36

-0.43

-6.11 ~ 5.26

-1.49

-6.94 ~ 3.97

PL distance

0.003

-0.47 ~ 0.48

-0.05

-0.58 ~ 0.48

0.14

-0.51 ~ 0.79