BMI	Body Mass Index
Barthel	Barthel Index
CONUT	Controlling Nutritional Status
COPD	Chronic Obstructive Pulmonary Disease
CFS	Clinical Frailty Scale
CRD	Chronic Respiratory Disease
CPAP	continuous positive airway pressure
CI	confidence interval
CRP	C-reactive protein
HF	Heart Failure
ILD	Diffuse Interstitial Lung Disease
IQR	interquartile range
LVEF	Left Ventricular Ejection Fraction
mMRC	Modified Medical Research Council
NECPAL	Necesidades Paliativas (Palliative Care Needs)
NYHA	New York Heart Association
OR	odds ratio
PH	Pulmonary Hypertension
PPS	Palliative Performance Scale
Ref.	reference category
SD	standard deviation