Association between dementia and discharge status in patients hospitalized with pneumonia

BMC Pulmonary Medicine

Table 3 Multivariable Cox regression analysis for discharge home

	Hazard ratio	95% confidence interval	P
Dementia	0.68	0.67–0.69	<0.001
Age (years)
60–69	Reference
70–79	0.82	0.81–0.83	<0.001
80–89	0.66	0.65–0.67	<0.001
≥ 90	0.51	0.51–0.52	<0.001
Sex (female)	1.005	1.00–1.01	0.16
Body mass index (kg/m²)
< 18.5	0.75	0.74–0.75	<0.001
18.5–22.9	Reference
23.0–24.9	1.13	1.11–1.14	<0.001
25–29.9	1.16	1.15–1.18	<0.001
≥ 30.0	1.10	1.07–1.14	<0.001
BUN >21 mg/dl	0.79	0.78–0.79	<0.001
SpO2 < 90%	0.72	0.71–0.72	<0.001
Impaired consciousness	0.59	0.58–0.59	<0.001
Systolic blood pressure < 90 mmHg	0.71	0.69–0.72	<0.001
Cancer	0.83	0.82–0.84	<0.001
Hemodialysis	0.87	0.85–0.90	<0.001
Intensive care unit admission	0.49	0.48–0.50	<0.001

Abbreviations: BUN blood urea nitrogen; SpO ₂ peripheral oxygen saturation; FiO ₂ fraction of inspired oxygen. Multiple imputation was used for missing values for body mass index (BMI), BUN >21 mg/dl, SpO2 < 90%, Impaired consciousness, Systolic blood pressure < 90 mmHg

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