Table 1.
Baseline characteristics of participants (N = 30).
| Mean (SD) or N (%) | |
|---|---|
| Demographics | |
| Age, years | 71.1 (8.4) |
| Height, cm | 165.1 (10.2) |
| Weight, kg | 85.3 (17.7) |
| Sex | |
| Male | 14 (46.7) |
| Female | 16 (53.3) |
| Race | |
| White | 24 (80.0) |
| Black or African American | 6 (20.0) |
| Income | |
| <$25,000 | 10 (33.3) |
| $25,000-$49,999 | 10 (33.3) |
| > $50,000 | 9 (30.0) |
| Other/Missing | 1 (3.3) |
| Education | |
| Up to grades 12 or GED | 8 (26.7) |
| Some college – Associate’s degree | 13 (43.3) |
| Bachelor’s degree and above | 9 (30.0) |
| Total Pack-Year Smoking History | 54.4 (30.7) |
| Baseline Clinical Measures | |
| FEV1% predicted | 54.3 (14.5) |
| FVC% predicted | 79.9 (15.7) |
| FEV1/FVC | 51.1 (11.5) |
| Number of observations | |
| Total number of daily observations | 3619 (100) |
| Days with worsening of any respiratory symptom | 490 (13.5) |
| Days with worsening of breathing symptoms | 227 (6.3) |
| Days with worsening of bronchitis symptoms | 330 (9.1) |
Data are presented as mean (SD, standard deviation) or as n (%, column percentage), as indicated. FEV1: forced expiratory volume in 1 second; FVC: forced vital capacity.