Table 1 Proportion of sample answering yes to each question and the Spearman correlation matrix for all six questionnaire items
Please think about your use of your [name of inhaled corticosteroid] In the last 3 months … | Proportion YES | Q1 | Q2 | Q3 | Q4 | Q5 | Q6 |
|---|---|---|---|---|---|---|---|
Q1. … have you at times been careless about using your inhaler? | 47.3 | 1.00 | 0.62* | 0.48* | 0.12 | 0.60* | 0.26 |
Q2. … have you ever forgotten to use your inhaler? | 59.5 | 0.62* | 1.00 | 0.28*** | 0.10 | 0.40** | 0.21 |
Q3. … have you ever stopped using your inhaler because you felt better? | 28.4 | 0.48* | 0.28*** | 1.00 | 0.19 | 0.64* | 0.06 |
Q4. … have you ever stopped using your inhaler because you felt worse? | 1.4 | 0.12 | 0.10 | 0.19 | 1.00 | 0.14 | 0.23** |
Q5. … have you ever used your inhaler less than the doctor prescribed because you felt better? | 40.5 | 0.60* | 0.40** | 0.64* | 0.14 | 1.00 | 0.06 |
Q6. … have you ever used your inhaler more than the doctor prescribed because you felt you were having an attack? | 20.3 | 0.26 | 0.21 | 0.06 | 0.23** | 0.06 | 1.00 |