Comparison of two dependent within subject coefficients of variation to evaluate the reproducibility of measurement devices

Table 7 Analysis of computer-aided tomographic scan data on 50 patients via PIX or PLAN with two replicates

	PIX (l = 1)		PLAN (l = 2)
	Estimate	SE	Estimate	SE
μ _l	1.41	0.074	1.79	0.056
ρ _l	0.99	0.002	0.73	0.066
θ _l	0.028	0.003	0.12	0.013
σ _l	0.04	0.004	0.22	0.02
ρ ₁₂ = 0.65, T_wald = -7.3, LRT = 79, PM = -4.6 (p < 0.001 for all tests) The estimate of the common WSCV under the null is 0.034 (SE = 0.003) 95% CI for (θ₁-θ₂): (-0.12,-0.07)

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