Comparison of three methods for measuring C0-1 angles and C0-2 angles

Table 1 The results of interobserver and intraobserver reliability of upper cervical spinesagittal parameters

	C0-1 A			C0-2 A			C1-2 A
	FML	FHL	ML	FML	FHL	ML	C1-2 A
	ICC	ICC	ICC	ICC	ICC	ICC	ICC
Reliability of interobserve
The first measurement	0.830^**	0.935^**	0.959^**	0.880^**	0.926^**	0.959^**	0.918^**
The second measurement	0.842^**	0.929^**	0.969^**	0.873^**	0.941^**	0.978^**	0.950^**
Overall	0.836^**	0.932^**	0.964^**	0.876^**	0.933^**	0.968^**	0.934^**
Reliability of intraobserver
The first measurement	0.850^**	0.933^**	0.964^**	0.881^**	0.937^**	0.974^**	0.929^**
The second measurement	0.859^**	0.950^**	0.967^**	0.882^**	0.949^**	0.976^**	0.952^**
Overall	0.854^**	0.941^**	0.965^**	0.881^**	0.943^**	0.975^**	0.940^**

ISSN: 1471-2474