Table 4.
Preventer inhaler use overall and by short-acting beta agonist (SABA) overuse versus non-overuse (n=375)
| Asthma preventermedication n (%) |
Overall n=375 |
SABA overuse | ||
| No n=104 |
Yes n=271 |
P value | ||
| Preventer instruction | ||||
| Every day | 214 (57.1) | 43 (41.3) | 171 (63.1) | P<0.001 |
| As required | 112 (29.9) | 39 (37.5) | 73 (26.9) | |
| Don’t know | 49 (13.1) | 22 (21.2) | 27 (10) | |
| Preventer adherence | ||||
| I take it everyday | 99 (26.4) | 21 (20.2) | 78 (28.8) | 0.322 |
| I take it some days but others I do not | 88 (23.5) | 20 (19.2) | 68 (25.1) | |
| I used to take it but now I do not | 32 (8.5) | 7 (6.7) | 25 (9.2) | |
| I take it only when I have symptoms | 97 (25.9) | 38 (36.5) | 59 (21.7) | |
| I never take it | 59 (15.7) | 18 (17.3) | 41 (15.1) | |
| Reasons for non-adherence* | ||||
| Don’t need it | 234 (62.4) | 65 (62.5) | 169 (62.4) | 0.971 |
| Side effects experienced | 68 (18.1) | 12 (11.5) | 56 (20.6) | 0.04 |
| Don’t like it | 23 (6.1) | 4 (3.8) | 19 (7) | 0.140 |
| Doesn’t work | 50 (13.3) | 6 (5.8) | 44 (16.2) | 0.015 |
| Forget to take it | 161 (43) | 27 (26) | 134 (49.4) | <0.001 |
| Too expensive | 16 (4.3) | 4 (3.8) | 12 (4.4) | 0.916 |
*Participants were able to select multiple answers.