TABLE 1

Patient Demographics

VariableData
Total number of patients63
Sex (n)
 Male38
 Female25
Mean age (y)71.4
COPD (n)
 None, based on spirometry26
 Mild1
 Moderate26
 Severe9
 Very severe1
BMI (n)
 <20 (underweight)4
 20–25 (normal weight)15
 25–30 (overweight)24
 >30 (obese)20
Tobacco abuse (n)
 Yes56
 No7