Incidence of Delirium in Critically Ill Cancer Patients

Table 2

Risk factors for development of delirium.

	With delirium	Without delirium
Alcoholism, n (%)	3 (12)	15 (17.9)	0.760^+
Smoking, n (%)	4 (16)	18 (21.4)	0.770^+
Acute kidney injury at time of admission to the ICU, n (%)	16 (64)	37 (44)	0.080
Mechanical ventilation at admission to the ICU, n (%)	19 (76)	54 (64.3)	0.270^+
Time with mechanical ventilation (days), median (IQR)	8 (4–11)	2 (1–10)	0.010^+
Use of sedative in the ICU, n (%)	17 (68)	50 (59.5)	0.44
Use of benzodiazepines, n (%)	9 (36)	31 (36.9)	0.930^°
Use of mixed sedation, n (%)	3 (12)	2 (2.4)	0.080^+
Analgesic with opioids, n (%)	22 (88)	73 (87)	0.999
Numerical Rating for Pain Scale	2.5 (0.5–4.5)	2.5 (0–5)	0.860^°
Behavioral Pain Scale	3 (3–3)	3 (3–3)	0.930^°
Use of steroids in the ICU, n (%)	8 (32)	23 (27.4)	0.650
Use of vasopressor in the ICU, n (%)	18 (72)	57 (67.9)	0.690
Transfusion during stay in the ICU, n (%)	10 (40)	41 (48.8)	0.490
Use of antibiotic in the ICU, n (%)	25 (100)	78 (92.9)	0.330
Time before admission to the ICU (days), median (IQR)	4 (1–9.5)	2 (1–13.5)	0.510^°
Time in the ICU (days), median (IQR)	7 (2-5-13)	2 (1–6.75)	0.007^°

ICU: intensive care unit; IQR: interquartile range; chi-squared; ⁺Fisher’s exact; ^° Mann–Whitney U.