Table 2.

GEE model examining the effects of independent predictor variables on delirium status.

Parameter	B	Std. error	95% Wald confidence interval		Hypothesis test
			Lower	Upper	Wald chi-square	df	Sig.
Intercept	7.82	2.5763	2.773	12.872	9.219	1	.002
Prev hx of dementia = No	.89	.3214	.266	1.526	7.770	1	.005
Prev hx of dementia = yes	0	.	.	.	.	.	.
Age	−.086	.0285	−.142	−.030	9.075	1	.003
MoCA	.210	.0257	.160	.260	66.959	1	.000
APACHE II	−.096	.0380	−.170	−.021	6.360	1	.012