Table 4. The improvement in usage of inhaler assessed by physicians before and after education.
| Items | Positive answer | P value | Improvement, No. (%) | |
|---|---|---|---|---|
| Before education | After education | |||
| Open the lid correctly | 224 (79.7) | 280 (99.2) | < 0.01 | 134 (47.9) |
| Hold the inhalator correctly | 192 (68.3) | 275 (97.5) | < 0.01 | 156 (55.7) |
| Enough breathing out before inhalation | 100 (35.6) | 251 (89.0) | < 0.01 | 200 (71.4) |
| Good understanding of the manner of inhalation | 130 (46.3) | 269 (95.4) | < 0.01 | 187 (66.8) |
| Hold his/her breath for 5 seconds after inhalation | 115 (40.9) | 265 (94.0) | < 0.01 | 198 (70.7) |
| Breathe out after removing the inhalator at the end of the inhalation | 156 (55.5) | 266 (94.7) | < 0.01 | 178 (63.8) |
| Rinsing his mouth after inhalator use | 175 (68.6) | 250 (97.2) | < 0.01 | 144 (58.1) |
Data are number (percentage); χ2 test for statistical analysis.