Table 4.

Test-retest reliability of the Functional Ambulation Categories; n = 65; kappa = 0.97 (95% CI: 0.94–0.99); agreement = 92%

		Second measure scores						Observed proportion of agreement (95% CI)
		0	1	2	3	4	5
First measure scores	0	27	0	0	0	0	0	100% (85–100)
	1	0	3	0	0	0	0	100% (31–100)
	2	0	0	0	0	0	0	na
	3	0	0	0	8	0	0	100% (60–100)
	4	0	0	0	0	16	5	76% (52–91)
	5	0	0	0	0	0	6	55% (25–82)

CI Confidence interval, na Not applicable