Table 3. Predictors of high inhaler satisfaction in logistic regression analyses.
| Variables | Univariate analyses | Multivariate analyses | |||
|---|---|---|---|---|---|
| OR (95% CI) | P value | OR (95% CI) | P value | ||
| Age, yr | 1.014 (0.981–1.047) | 0.405 | |||
| Male | 0.901 (0.322–2.519) | 0.843 | |||
| BMI, kg/m2 | 1.082 (1.004–1.166) | 0.039 | |||
| Smoking status | |||||
| Non-current smoker | 1.974 (1.044–3.735) | 0.037 | |||
| Current smoker | 1.000 | ||||
| Education level | |||||
| High (> 6 yr) | 0.746 (0.442–1.259) | 0.272 | |||
| Low (≤ 6 yr) | 1.000 | ||||
| COPD duration, yr | 1.456 (0.976–1.106) | 0.225 | |||
| GOLD grade | 0.041 | ||||
| I/II | 1.848 (1.020–3.349) | 0.043 | |||
| III/IV | 1.000 | ||||
| mMRC score | |||||
| < 2 | 1.967 (1.175–3.293) | 0.010 | 2.162 (1.224–3.819) | 0.008 | |
| ≥ 2 | 1.000 | ||||
| CAT | |||||
| < 10 | 1.287 (0.778–2.131) | 0.325 | |||
| ≥ 10 | 1.000 | ||||
| Moderate exacerbations in the prior year | 0.907 (0.546–1.507) | 0.707 | |||
| Severe exacerbations in the prior year | 0.647 (0.347–1.208) | 0.170 | |||
| Puff burden, puffs/day | 0.838 (0.688–1.021) | 0.080 | |||
| Usage of multiple inhalers | 0.724 (0.396–1.325) | 0.294 | |||
| Frequency of inhaler | |||||
| Once daily | 1.656 (0.929–2.951) | 0.087 | |||
| Twice daily | 1.000 | ||||
| Adherence | |||||
| Good | 2.085 (1.107–3.926) | 0.023 | 2.146 (1.061–4.342) | 0.034 | |
| Partial or poor | 1.000 | ||||
BMI = body mass index, CAT = chronic obstructive pulmonary disease assessment test, CI = confidence interval, COPD = chronic obstructive pulmonary disease, GOLD = Global Initiative for Chronic Obstructive Lung Disease, mMRC = modified Medical Research Council, OR = odds ratio.