Association between the presence of delirium during intensive care unit admission and cognitive impairment or psychiatric problems: the Korean ICU National Data Study

Table 3 Ratio (95% CI) of medical costs in patients with delirium compared with patients without delirium

	Patients with delirium (n = 168,190)	Patients without delirium (n = 137,821)	Adjusted^a ratio (95% CI)	p
In-hospital cost, $	9429 (5843–15,856)	5732 (3381–8155)	1.26 (1.26–1.27)	< 0.001
Post-ICU cost, $ (PPPM)
Total	139.5 (54.6–640.8)	106.0 (51.7–297.1)	1.16 (1.14–1.17)	< 0.001
Cognitive impairment or psychiatric problems related	3.2 (0.8–17.8)	2.0 (0.6–9.7)	1.45 (1.37–1.53)	< 0.001

Data are presented median (interquartile range)
CI confidence interval, ICU intensive care unit, PPPM per-patient-per-months
1 US dollar = 1022 Korean won (exchange rate as of May 31, 2014)
^aAdjusted for age, sex, comorbidities, medical beneficiaries, region, mechanical ventilation, ECMO, CRRT, vasopressor drugs, quality of ICU, and ICU length of stay more than 7 days

ISSN: 2052-0492