Table 1

Patient demographics and characteristics stratified by delirium status
Delirium No delirium p-value
Patients, n (% total)a 57 (20.1) 226 (79.9)
Characteristic
 Mean age, years (SD) 67.1 (± 16.0) 60.3 (± 17.6) 0.010
 Female, n (% group) 18 (31.6) 89 (39.4) 0.278
 SIRS criteria, % 38.6 23.5 0.028
 Median Charlson (IQR) 4 (5) 3 (4) 0.039
Admission type (intra/inter hospital transfer category), n (% group; % origin)b < 0.001
 Emergency department 28 (49.1; 23.0) 94 (41.6; 77.0)
 Operating room 6 (10.5; 6.4) 88 (38.9; 93.6)
 Wards 8 (14.0; 25.0) 24 (10.6; 75.0)
 Intensive care unit 7 (12.3; 63.6) 4 (1.8; 36.4)
 Inter-hospital transfer 8 (14.0; 33.3) 16 (7.1; 66.7)
Emergency physician diagnosis by organ system, n (% group; % diagnosis)c 0.031
 Cardiovascular 12 (21.1; 21.1) 45 (19.9; 78.9)
 Drug toxicity/withdrawal 2 (3.5; 33.3) 4 (1.8; 66.7)
 Gastrointestinal 11 (19.3; 11.7) 51 (22.6; 82.3)
 Genitourinary 6 (10.5; 22.2) 21 (9.3; 77.8)
 Neurologic 2 (3.5; 50.0) 2 (0.9; 50.0)
 Haemato-oncologic 4 (7.0; 11.8) 30 (13.3; 88.2)
 Pulmonary 13 (22.8; 36.1) 23 (10.2; 63.9)
 Trauma/musculoskeletal 7 (12.3; 21.9) 25 (11.1; 78.1)
 Other 0 (0.0; 0.0) 25 (11.1; 100.0)

aOf the n = 298 patients enrolled, n = 15 were excluded due to dementia, neuropsychiatry illness or persistent coma (CAM-ICU assessment not conducted). bSignificant differences between ICU and ED (p = 0.008), OR (p < 0.001) and ward (p = 0.035), and between OR and ED (p = 0.016) and IHT (p = 0.020) (ANOVA, multiple comparisons Tukey post hoc HSD). cSignificant differences between Pulmonary and Other (p = 0.015) (ANOVA, multiple comparisons Tukey post hoc HSD). ED = emergency department, ICU = intensive care unit, IHT = inter-hospital transfer, IQR = interquartile range, OR = operating room; SD = standard deviation; SIRS = systemic inflammatory response syndrome.

Mariz et al.

Mariz et al. BMC Emergency Medicine 2013 13:2   doi:10.1186/1471-227X-13-2

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