Table 5 Cross-sectional validity for individuals with an exacerbation of asthma at the follow-up survey* (n = 143)
Instrument | AQLQ | |||||||
|---|---|---|---|---|---|---|---|---|
Validation measure | Activity limitation | Symptoms | Emotional function | Environmental exposure | ||||
Severity of asthma | -0.27 | -0.34 | -0.33 | -0.28 | ||||
Respiratory symptoms | -0.49 | -0.62 | -0.43 | -0.52 | ||||
Exercise limitation | -0.32 | -0.39 | -0.32 | -0.30 | ||||
Professional or leisure limitation due to asthma? | -0.34 | -0.34 | -0.24 | -0.30 | ||||
Depression | -0.21 | -0.13 | -0.09 | -0.15 | ||||
Smoking | ||||||||
Current | -0.05 | -0.10 | -0.08 | -0.13 | ||||
Current or former | -0.08 | -0.21 | -0.14 | -0.14 | ||||
FEV 1 (% of predicted value) | 0.34 | 0.27 | 0.34 | 0.29 | ||||
FEF 25–75 (% of predicted value) | 0.24 | 0.12 | 0.21 | 0.18 | ||||
SF-36 | ||||||||
Physical functioning | Role physical | Bodily pain | General health | Vitality | Social functioning | Role emotional | Mental health | |
Severity of asthma | -0.24 | -0.25 | -0.18 | -0.25 | -0.03 | -0.16 | -0.12 | -0.12 |
Respiratory symptoms | -0.38 | -0.29 | -0.31 | -0.26 | -0.30 | -0.20 | -0.20 | -0.29 |
Exercise limitation | -0.42 | -0.20 | -0.19 | -0.16 | -0.27 | -0.10 | -0.11 | -0.18 |
Professional or leisure limitation due to asthma? | -0.34 | -0.38 | -0.28 | -0.32 | -0.19 | -0.20 | -0.22 | -0.15 |
Depression | -0.26 | -0.25 | -0.33 | -0.38 | -0.27 | -0.38 | -0.35 | -0.25 |
Smoking | ||||||||
Current | 0.00 | 0.02 | -0.11 | 0.01 | 0.03 | 0.04 | 0.09 | 0.04 |
Current or former | -0.11 | -0.12 | -0.23 | 0.11 | -0.14 | -0.12 | -0.01 | 0.03 |
FEV 1 (% of predicted value) | 0.57 | 0.32 | 0.18 | 0.12 | 0.06 | 0.18 | 0.21 | 0.05 |
FEF 25–75 (% of predicted value) | 0.48 | 0.33 | 0.30 | 0.09 | 0.06 | 0.21 | 0.23 | 0.03 |