Table 1 Demographic Characteristics and Health Status for Asthma and COPD Sample
From: Development and psychometric assessment of the COPD and Asthma Sleep Impact Scale (CASIS)
Characteristics | Focus group/interview sample | Cognitive debriefing interview sample | Validation sample | |||
|---|---|---|---|---|---|---|
Asthma (n = 55) | COPD (n = 43) | Asthma (n = 29) | COPD (n = 35) | Asthma (N = 324) | COPD (N = 311) | |
Age(years) | ||||||
Mean (SD) | 45.2 (17) | 66.0 (11) | 49.6 (17) | 65.2 (9) | 48.1 (16) | 70.6 (10) |
Range | 22-82 | 33-91 | 18-82 | 48-80 | 18-85 | 45-95 |
Male n (%) | 22 (40) | 24 (56) | 12 (41) | 17 (49) | 90 (28) | 141 (45) |
Years since diagnosis | ||||||
Mean (SD) | 20.4 (14)a | 11.2 (11) | 22.3 (16) | 11.5 (14) | 20.1 (15) | 10.5 (11) |
Range | 1-68 | 1-50 | 1-60 | 1-60 | 1-71 | 1-76 |
Missing, n (%) | 1 (2) | 1 (2) | 1 (3) | 3 (9) | ||
Participant-reported disease severity, n (%) b, c | ||||||
Mild | 27 (49) | 7 (16) | 9 (56) | 7 (37) | 146 (45) | 52 (17) |
Moderate | 14 (25) | 16 (37) | 6 (38) | 4 (21) | 120 (37) | 139 (45) |
Quite severe | 10 (18) | 12 (28) | 1 (6) | 5 (26) | 43 (13) | 93 (30) |
Very severe | 3 (5) | 5 (12) | 0 | 2 (11) | 11 (3) | 26 (8) |
Missing | 1 (2) | 3 (7) | 0 | 1 (5) | ||
Participant-reported overall health, n (%) d | ||||||
Very good | 5 (13) | 0 | 2 (13) | 0 | 46 (14) | 14 (5) |
Good | 14 (36) | 12 (41) | 8 (50) | 6 (32) | 144 (44) | 78 (25) |
Fair | 15 (38) | 6 (21) | 4 (25) | 7 (37) | 104 (32) | 137 (44) |
Poor | 5 (13) | 11 (38) | 2 (13) | 6 (32) | 27 (8) | 78 (25) |
SGRQ e Mean (SD) | ||||||
Symptom score | --- | --- | --- | --- | --- | 57.7 (22.2) |
Activity score | 73.3 (23.3) | |||||
Impacts score | 43.6 (25.0) | |||||
Total score | 54.7 (21.7) | |||||
AQLQ f Mean (SD) | ||||||
Symptoms | --- | --- | --- | --- | 4.7 (1.4) | --- |
Activity limitation | 5.0 (1.4) | |||||
Emotional function | 4.9 (1.6) | |||||
Environmental stimuli | 4.6 (1.6) | |||||
Overall | 4.8 (1.3) | |||||