Table 5.

Results of random-effects pooling for studies that reported estimates of coefficient of variation (CV) by different study characteristics

	Number of Estimates	Inter-reader CV (95% CI)	Number of Estimates	Intra-reader CV (95% CI)
Overall	6	3.4% (1.3, 5.5)	19	3.0% (2.0, 4.0)
Knee Flexion
Extended	3	5.2% (2.5, 8.0)	6	4.7% (2.7, 6.7)
Flexed	3	1.5% (0.3, 2.7)	13	2.2% (1.3, 3.2)
Fluoroscopy
Fluoro	6	3.4% (1.3, 5.5)	14	2.0% (1.4, 2.5)
No Fluoro	0	N/A	5	5.8% (3.8, 7.9)
Measurement Method
Manual	6	3.4% (1.3, 5.5)	11	3.6% (2.1, 5.1)
Computerized	0	N/A	8	2.2% (0.8, 3.5)