Delirium in elderly patients with COPD combined with respiratory failure undergoing mechanical ventilation: a prospective cohort study

Table 1 The characteristics of included COPD patients

Variables	Delirium group(n = 52)	No delirium group(n = 185)	t/χ²	p
Age(y)	78.11 ± 10.26	69.84 ± 9.03	9.445	0.016
Male/female	31/21	110/75	2.061	0.093
BMI (kg/m²)	18.12 ± 4.67	20.05 ± 4.19	3.142	0.007
Hypertension	40(76.92%)	66(35.68%)	1.065	0.024
Diabetes mellitus	25(48.08%)	84(45.41%)	3.129	0.108
Hyperlipidemia	20(38.46%)	67(36.22%)	2.025	0.082
Anemia	28(53.85%)	92(49.73%)	1.113	0.104
APACHE II score	17.49 ± 4.07	12.62 ± 3.28	5.108	0.008
CPOT	6.14 ± 2.01	4.21 ± 1.66	2.045	0.015
Sedation	41(78.85%)	59(31.89%)	1.251	0.002
Duration of mechanical Ventilation(h)	73.14 ± 22.17	68.05 ± 23.14	11.038	0.048

BMI Body mass index, APACHE II acute physiology and chronic health score, CPOT critical pain observation tool

ISSN: 1471-2466