Table 3.

Kappa scores of the intraoberserver agreement

Observers	OTA	Neer	Jäger and Breitner
A	0.568	0.153	0.492
B	0.446	0.405	0.300
C	0.567	0.241	0.186
D	0.498	0.279	0.470
E	0.446	0.342	0.625
F	0.558	0.228	0.380
G	0.086	0.379	0.583
H	0.373	0.448	0.489
I	0.634	0.137	0.307
K	0.429	0.404	0.570
Mean	0.461	0.302	0.440

The kappa values of the intraobserver agreements showed in all classification systems a wide range