Table 1.
Continuous variables | Mean | s.d. | Continuous variables | Mean | s.d. | Categorical variable | % |
---|---|---|---|---|---|---|---|
Age (years) | 62.15 | 9.01 | SF-12 physical (range: 13–68) | 48.20 | 9.16 | Education (college graduate) | 30.18 |
Body mass index (kg/m2) | 28.91 | 4.84 | SF-12 mental (range: 10–73) | 53.56 | 8.22 | Lifetime smoking (yes) | 48.50 |
CES-D (range: 0–57) | 6.82 | 7.07 | PASE (range: 0–531) | 155.08 | 80.71 | Income >US$50 000/year | 60.11 |
Alcohol (number of drinks/week) | 1.71 | 1.48 | Number of medications | 3.68 | 2.54 | ||
Charlson index (range: 0–10) | 0.45 | 0.89 | Mediterranean diet adherence score (range: 0–44) | 28.09 | 5.01 |
CES-D, Center for Epidemiologic Studies-Depression Scale; COPD, chronic obstructive pulmonary disease; Education, completed college; Functioning, income >US$50 000; PASE, Physical activity Scale for the Elderly; SF-12, Short-Form Health Survey 12 items