How to assess intra- and inter-observer agreement with quantitative PET using variance component analysis: a proposal for standardisation

Table 1 Results from the linear mixed effects model (study 1)

Component	Factor level	Estimate	95 % CI	P-value
Reading	1^st (reference)
Reading	2^nd	0.43	−0.02 to 0.88	0.06
Constant		8.60	6.03 to 11.16	<0.0001
Patient variance		47.53	28.28 to 79.86
Residual variance		0.787	0.470 to 1.317

ISSN: 1471-2342