Evaluation of canine intervertebral disc degeneration in colour-coded computed tomography

Table 4 Comparison of non-contrast and coloured data sets

Comparison	Observer	ĸ	Limits of confidence	p-value of Bowker’s test
Non-contrast : B16	1	0.73	0.72–0.86	0.57
	2	0.57	0.47–0.67	0.21
	3	0.67	0.60–0.74	0.61
Non-contrast : Spectrum	1	0.74	0.67–0.81	0.92
	2	0.51	0.41–0.61	<0.0001***
	3	0.67	0.59–0.74	0.77
Non-contrast : Union Jack	1	0.76	0.69–0.83	0.84
	2	0.66	0.58–0.74	0.023**
	3	0.62	0.55–0.69	0.10

Bowker’s test shows significant differences in evaluation of IVD degeneration between non-contrast and coloured images in observer 2 with p-value: **p < 0.01, ***p < 0.001

ISSN: 2046-0481