Table 3.

Number of parameters in latent class model, by number of laboratories (R)

Model number	Association of interest	Accuracy differential by laboratory	General number of labs (R)	R = 1	R = 2	R = 3
1	Observed vs. true exposure status: EX	Yes	2R + 2	4	6	8
2		Yes*	4R + 2	6	10	14
3		No	4	4	4	4
4		No*	6	6	6	6
5	Disease vs. true exposure status: DX	Yes	2R + 3	5	7	9
6		No	5	5	5	5
7	Disease with observed exposure status: DE	Yes	2R + 1	3	5	7
8		No	3	3	3	3

* error rates are (additionally) differential by disease status

D- disease; X-true genotype status; E-genotype status measured by laboratory test.