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

Table 3 Pearson correlation analysis on the characteristics of patients and delirium

Variables	r	P
Age(y)	0.784	0.006
Gender	0.016	0.112
BMI (kg/m²)	0.709	0.014
Hypertension	0.696	0.045
Diabetes mellitus	0.123	0.079
Hyperlipidemia	0.126	0.205
Anemia	0.165	0.148
APACHE II score	0.801	0.025
CPOT	0.513	0.036
Sedation	0.626	0.029
Duration of mechanical ventilation(h)	0.265	0.103
Albumin(g/L)	0.163	0.088
Hemoglobin(g/L)	0.124	0.105
Blood sugar(mmol/L)	0.168	0.059
Creatinine(μmol/L)	0.042	0.146
Urea nitrogen(mmol/L)	0.146	0.093
T3(mU/L)	0.113	0.119
T4(mU/L)	0.147	0.101
TSH(mU/L)	0.073	0.162
FT3(mU/L)	0.187	0.067
FT4(mU/L)	0.153	0.122
PaO₂(mmHg)	0.611	0.021
PaCO₂(mmHg)	0.195	0.089

BMI Body mass index, APACHE II acute physiology and chronic health score, CPOT critical pain observation tool, PaO₂ arterial partial pressure of oxygen, T3 Triiodothyronine, T4 thyroxine; TSH thyroid stimulating hormone, FT3 free triiodothyronine, FT4 free thyroxine, PaO₂ arterial partial pressure of oxygen, PaCO₂ arterial partial pressure of carbon dioxide

ISSN: 1471-2466