Table 4.

Factors associated with the prescription of psychotropic drugs

Influencing variables		Univariate model			Multivariable modela
	%	OR	95%CI	p value	OR	95%-CI	p value
intensive care unitb
no	52.8	1.0
yes	67.7	1.87	(1.33–2.64)	0.0004	2.08	(1.47–2.96)	0.0001
sex
male	48.8	1.0
female	57.7	1.43	(1.20–1.70)	0.0001	1.36	(1.14–1.63)	0.0006
age
65–84 years	51.9	1.0
≥ 85 years	58.9	1.33	(1.10–1.60)	0.0036	1.10	(0.90–1.35)	0.33
department
surgical departments	51.3	1.0
internal medicine	50.3	0.96	(0.80–1.15)	0.67	0.96	(0.80–1.16)	0.70
geriatrics	73.9	2.69	(2.01–3.60)	0.0001	2.68	(1.99–3.61)	0.0001

P values, odds ratios and confidence intervals from univariate and multivariable logistic regression. (%) refers to patients prescribed psychotropic drugs based on N = 2130, OR odds ratio, CI confidence interval

^aGoodness of fit (Hosmer–Lemeshow test: p = 0.16)

^bPatients were treated at the intensive care unit (ICU) for part of their hospital stay. Psychotropic drugs administered during the ICU stay were not included in this evaluation