Table 6 Intra-observer and inter-observer agreement of geometric measurements with 95% confidence intervals(CI)

RG-AB

0.776

0.726 to 0.857

0.741

0.699 to 0.822

RG-CD

0.813

0.725 to 0.865

0.768

0.635 to 0.858

RG-WI

0.873

0.780 to 0.904

0.863

0.801 to 0.932

RG-WA

0.736

0.690 to 0.852

0.728

0.653 to 0.835

NRG-AB

0.764

0.731 to 0.880

0.745

0.702 to 0.873

NRG-CD

0.863

0.798 to 0.937

0.856

0.808 to 0.936

NRG-WI

0.830

0.784 to 0.920

0.828

0.757 to 0.916

NRG-WA

0.736

0.681 to 0.805

0.732

0.631 to 0.803

CG-AB

0.872

0.756 to 0.906

0.855

0.808 to 0.920

CG-CD

0.833

0.774 to 0.912

0.820

0.714 to 0.916

CG-WI

0.766

0.701 to 0.845

0.739

0.705 to 0.858

CG-WA

0.828

0.752 to 0.889

0.810

0.730 to 0.869