Inhaler Technique for Controller and Rescue Medications at Baseline and 9 Months, by Study Arm (N = 138)
| Measure | Health-Coaching Arm (n =67) | Usual-Care Arm (n = 71) | Difference, % | Adjusted Difference, % (95% CI)a | P Value | ||
|---|---|---|---|---|---|---|---|
| Baseline | 9 Months | Baseline | 9 Months | ||||
| Perfect use of all inhalers, % (No.) | 4.5 (3) | 23.9 (16) | 1.4 (1) | 7.0 (5) | 16.9 | 24.8 (4.2-42.6) | .01 |
| Adequate use of all inhalers, % (No.) | 9.0 (6) | 40.3 (27) | 5.6 (4) | 11.3 (8) | 29.0 | 40.0 (20.7-59.2) | <.001 |
| Weighted inhaler technique score, mean (SD) | 71.9 (15.7) | 88.9 (10.2) | 72.9 (15.3) | 77.7 (13.2) | 11.24 | 11.61 (8.18-15.04) | <.001 |
↵a Adjusted for baseline value of measure and clustering by clinic site.
Note: Includes only patients with data for baseline and 9 months (ie, patients on controller or rescue inhalers at both time points). See Table 1 footnotes for definitions of use and score details.