Table 3.

Multivariate logistic regression analyses for the occurrence of delirium.

	Crude			Model 1			Model 2			Model 3
	OR	95% CI	p	OR	95% CI	p	OR	95% CI	p	OR	95% CI	p
GNRI, 1 decrease	1.05	1.02–1.07	<0.001	1.03	0.99–1.07	0.06	1.03	0.99–1.07	0.13	0.96	0.84–1.09	0.63
GNRI as a categorical variable
No risk	1.00	(reference)		1.00	(reference)		1.00	(reference)		1.00	(reference)
Low risk	1.60	0.60–4.52	0.35	1.01	0.36–2.94	0.98	1.02	0.35–3.09	0.97	1.34	0.39–4.89	0.65
Moderate risk	2.01	0.85–5.23	0.11	1.10	0.44–3.01	0.84	1.09	0.41–3.15	0.86	1.62	0.37–7.62	0.52
High risk	5.81	2.48–15.3	<0.001	2.86	1.10–8.13	0.03	2.46	0.87–7.48	0.09	3.93	0.47–33.0	0.20
PNI, 1 decrease	1.10	1.06–1.14	<0.001	1.08	1.03–1.13	<0.001	1.07	1.02–1.13	0.003	1.17	1.05–1.33	0.004
PNI as a categorical variable
No risk	1.00	(reference)		1.00	(reference)		1.00	(reference)		1.00	(reference)
Moderate risk	1.83	0.74–4.09	0.18	1.08	0.42–2.53	0.86	1.03	0.38–2.51	0.95	1.11	0.37–3.06	0.84
High risk	4.18	2.28–7.71	<0.001	2.90	1.52–5.52	0.001	2.53	1.26–5.04	0.009	2.62	0.89–7.68	0.08
CONUT, 1 increase	1.33	1.20–1.48	<0.001	1.31	1.17–1.48	<0.001	1.29	1.14–1.46	<0.001	1.44	1.17–1.79	0.02
CONUT as a categorical variable
No risk	1.00	(reference)		1.00	(reference)		1.00	(reference)		1.00	(reference)
Low risk	5.32	1.51–33.7	0.006	3.52	0.97–22.6	0.06	5.81	1.37–42.4	0.01	7.03	1.52–55.0	0.009
Moderate risk	8.65	2.48–54.7	<0.001	4.51	1.23–29.1	0.02	6.03	1.39–43.9	0.01	8.66	1.58–74.6	0.01
High risk	27.3	6.68–185.0	<0.001	22.1	5.03–155.8	<0.001	33.2	6.39–270.9	<0.001	46.1	4.90–601.4	<0.001

Model 1: adjusted for age, gender, and body mass index; Model 2: adjusted for age, gender, body mass index, acute decompensated heart failure on admission, and history of dementia; Model 3: adjusted for age, gender, body mass index, acute decompensated heart failure on admission, history of dementia, C-reactive protein, and albumin levels; OR, odds ratio; 95% CI, 95% confidence interval. The bold means statistically significant values.