Table 2 Clinical characteristics of study subjects
From: Symptoms and markers of symptom severity in asthma—content validity of the asthma symptom diary
Concept elicitation interviews | Cognitive interviews | |||
|---|---|---|---|---|
Parameter | Adult N = 34 (100%) | Adolescent N = 16 (100%) | Adult N = 15 (100%) | Adolescent N = 9 (100%) |
Atopic status | ||||
Allergic | 27 (79.4%) | 16 (100.0%) | 10 (66.7%) | 9 (100.0%) |
Non-allergic | 5 (14.7%) | --- | 4 (26.7%) | -- |
Missing | 2 (5.9%) | --- | 1 (6.7%) | -- |
FEV 1 predicted: | ||||
>95% | 3 (8.8%) | 8 (50.0%) | 4 (26.7%) | 2 (22.2%) |
95%–90% | 3 (8.8%) | 2 (12.5%) | 1 (6.7%) | 2 (22.2%) |
89%–80% | 10 (29.4%) | 5 (31.3%) | 2 (13.3%) | 3 (33.3%) |
79%–70% | 9 (26.5%) | --- | 5 (33.3%) | 2 (22.2%) |
69%–60% | 4 (11.8%) | 1 (6.3%) | 2 (13.3%) | --- |
59%–50% | 3 (8.8%) | --- | 1 (6.7%) | --- |
<50% | 2 (5.9%) | --- | --- | --- |
ACQ scores | Adult N = 34 (100%) | Adolescent N = 16 (100%) | Adult N = 15 (100%) | Adolescent N = 9 (100%) |
ACQ score categories: | ||||
ACQ score ≥3 (severe group) | 7 (20.6%) | 5 (31.3%) | 3 (20.0%) | 1 (11.1%) |
ACQ score ≥1.5 to < 3 (moderate group) | 23 (67.6%) | 10 (62.5%) | 9 (60.0%) | 6 (66.7%) |
ACQ score ≥0.5 to <1.5 to (mild group) | 4 (11.8%) | 1 (6.3%) | 3 (20.0%) | 2 (22.2%) |
ACQ mean score: | ||||
Mean (SD) | 2.1 (0.74) | 1.7 (0.63) | 2.1 (0.80) | 2.3 (0.90%) |
AQLQ: Overall score | Adult N = 34 (100%) | Adolescent N = 16 (100%) | Adult N = 15 (100%) | Adolescent N = 9 (100%) |
Mean (SD) | 4.8 (1.2) | 5.0 (0.8) | 4.8 (1.0) | 5.0 (1.1) |
Median | 4.9 | 5.2 | 4.8 | 5.3 |
Range | 2-7 | 4-7 | 3-7 | 3-6 |