Table 2.

Statistical comparison (reliability)

	PolyWare	Liaw et al. [8]	Lewinneck et al. [2]	Widmer [9]	Hassan et al. [10]	Ackland et al. [11]	Woo and Morrey [1]
ICC for intraobserver reliability (95% CI)	0.962 (0.946 to 0.987	0.933 (0.899 to 0.963)	0.938 (0.891 to 0.963)	0.923 (0.897 to 0.941)	0.953 (0.935 to 0.968)	0.936 (0.916 to 0.958)	0.982 (0.968 to 0.989)
ICC for interobserver reliability (95% CI)	0.948 (0.968 to 0.989)	0.925 (0.889 to 0.953)	0.927 (0.883 to 0.955)	0.954 (0.927 to 0.971)	0.928 (0.905 to 0.941)	0.923 (0.906 to 0.943)	0.981 (0.969 to 0.988)

ICC intraclass correlation coefficient, CI confidence interval