Table 1.
Participant characteristics.
| Device group | All (N = 61) | pMDI (N = 30) | SMI (N = 31) |
|---|---|---|---|
| Male, n (%) | 32 (52) | 18 (60) | 14 (45) |
| Age at study (years) | |||
| Male, mean (SD) | 59.8 (10.2) | 59.8 (9.9) | 59.8 (10.9) |
| Female, mean (SD) | 60.7 (7.8) | 63.8 (8.4) | 58.5 (6.8) |
| Range | 40–78 | 41–78 | 40–76 |
| Time since diagnosis (years) | |||
| Male, mean (min) | 8.5 (0.8) | 10.2 (1.0) | 6.4 (0.8) |
| Female, mean (min) | 8.0 (1.0) | 8.8 (1.0) | 7.4 (2.0) |
| COPD severity, self-reported level, n (%) | |||
| Moderate–severe | 14 (23) | 11 (37) | 3 (10) |
| Moderate | 30 (49) | 13 (43) | 17 (55) |
| Mild–moderate | 17 (28) | 6 (20) | 11 (35) |
| REALM-SF scorea (1 worst, 7 max) | |||
| Modea score | 7 | 7 | 7 |
| Minimum score [Participant #] | 4 [P35] | 4 [P35] | 5 [P39] |
COPD: chronic obstructive pulmonary disease; pMDI: pressurized metered dose inhaler; REALM-SF: Rapid Estimate of Adult Literacy in Medicine–Short Form; SD: standard deviation; SMI: soft mist inhaler.
a The mode is the score that was most frequently reported.