Table 4

Predictors of delirium in the univariable regression analyses

Delirium
	OR	95% CI	P value	Corrected*
Age	1.09	1.07 to 1.11	<0.001	0.002
Sex (male)	1.63	1.1 to 2.45	0.014	0.01
Triage colour
Red	13.88	7.71 to 24.99	<0.001	0.03
Yellow	4.77	2.77 to 8.22	<0.001	0.01
Institutionalisation	10.85	6.04 to 19.49	<0.001	0.009
Stroke/TIA	3.33	1.65 to 6.74	0.001	0.001
Parkinson	7.38	1.95 to 27.89	0.003	0.003
Alzheimer’s disease	11.93	2.94 to 48.37	0.001	0.001
Other dementias	33.76	16.74 to 68.1	< 0.001	0.007
Epilepsy	5.76	2.56 to 12.96	< 0.001	0.005
Other neurological diseases	3.05	1.72 to 5.40	<0.001	0.005
Depression	3.89	1.84 to 8.23	<0.001	0.004
Psychoactive drugs	5.07	3.07 to 8.38	<0.001	0.003
Sedative-hypnotics	4.39	2.4 to 8.01	<0.001	0.003
Antidepressants	3.84	2.18 to 6.77	<0.001	0.003
Antipsychotics	11.22	5.69 to 22.12	<0.001	0.002
Acetylcholinesterase inhibitors	23.76	2.63 to 214.45	0.005	0.006
Dopaminergic drugs	8.47	2.64 to 27.15	<0.001	0.002
Number of chronic drugs	1.23	1.17 to 1.30	<0.001	0.002
Anticholinergic Burden Score	1.9	1.60 to 2.26	<0.001	0.002
Number of COVID-19 symptoms at ED admission	0.84	0.78 to 0.91	<0.001	0.001
Duration of COVID-19 symptoms before ED admission	0.90	0.85 to 0.94	<0.001	0.002
PaO₂/FiO₂ at ED admission	0.99	0.993 to 0.997	<0.001	0.002
pH at ED admission	0.006	0 to 0.11	0.001	0.001
CRP at ED admission	1.001	0.99 to 1	0.295	0.29
LDH at ED admission	1.002	1.001 to 1.003	0.002	0.002
Leucocytes at ED admission	1.09	1.04 to 1.13	<0.001	0.001
Respiratory rate at ED admission	1.02	0.98 to 1.06	0.19	0.20

*Benjamini-Hochberg correction. Benjamini-Hochberg corrected p values were calculated by computing p_(k)=m/k for all sorted p values (p=sorted p values; m=total number of sorted p values; k=corresponding rank). Then p values were adjusted from the bigger to the smallest. If the value p_(k)=m/k was bigger than the previous adjusted p value, the corresponding corrected p value was equal to the previous one since numbers should not increase.
CRP, C reactive protein; LDH, lactate dehydrogenase; TIA, transient ischaemic attack.