Table 1

Patient characteristics (n = 7057), %.

Age (≥65 years)20.6
Sex (female)53.8
Level of education (low education)34.3
Smoker29.5
Type of insurance (publicly insured)65.5
Chronic respiratory comorbidity7.4
Other comorbiditya19.7
Self-reported health (moderate to poor)14.7
  • a Cardiovascular disease, diabetes mellitus, and/or hypertension