Table 5.

Uganda HHV-8 Study: Estimation of parameters in “logistic p ” and logistic regression based on fixed cutoff values for the assays; model-based standard errors given in parentheses

Parameter	Bivariate mixture model					Standard logistic regression Infected defined based on fixed cutoff values for
	Model I			Model II
	K = 0	K = 1	K = 2	K = 1	K = 2	K8.1	orf73	Combined
Intercept	−1.65	−1.73	−2.05	−1.65	−1.68	0.01	−0.35	0.15
	(0.28)	(0.29)	(0.39)	(0.25)	(0.24)	(0.23)	(0.23)	(0.21)
5 ≤ age < 10	1.56	1.55	1.72	1.32	1.35	0.94	1.49	1.17
	(0.28)	(0.28)	(0.33)	(0.24)	(0.24)	(0.30)	(0.32)	(0.26)
Age ≥ 10	1.63	1.63	1.94	1.39	1.40	1.75	1.36	1.46
	(0.29)	(0.29)	(0.35)	(0.25)	(0.25)	(0.30)	(0.32)	(0.27)
Ever transfused	0.31	0.30	0.50	0.32	0.32	0.31	0.30	0.21
	(0.23)	(0.22)	(0.25)	(0.19)	(0.19)	(0.22)	(0.22)	(0.20)
Surface water	0.80	0.79	1.09	0.63	0.69	0.55	0.93	0.81
	(0.24)	(0.23)	(0.27)	(0.20)	(0.20)	(0.22)	(0.22)	(0.20)
Log-likelihood	−142.61	−136.67	−117.66	−231.32	−181.46	−271.00	−267.49	−310.21
AIC	−319.22	−315.34	−289.32	−500.64	−412.92	−372.92	−552.00	−544.98