Table 1.
Rubric and using steps for inhaler technique scoring.
| MDI using steps | Points |
|---|---|
| Step 1: Removing cap | 1 |
| Step 2: Shaking MDI well | 1 |
| Step 3: Hold the inhaler with the mouth in line with the jaw, up right, and with the index finger on the drug tube | 1 |
| Step 4: Exhaling before using MDI | 1 |
| Step 5: Placing the lips between the lips of the MDI and closing the lips | 1 |
| Step 6: Pressing the device and inhaling simultaneously | 1 |
| Step 7: Holding breath for 3–10 s | 1 |
| Step 8: Exhaling slowly after administering the drug and waiting for 1 min before the second dosage | 1 |
| Step 9: Shaking the inhaler before the second dose | 1 |
| Step 10: Closing the cover of the MDI | 1 |
Table 2.
Comparison of the descriptive characteristics of COPD patients in the intervention and control groups.
| Characteristics | Intervention group | Control group | χ2 | t | P | ||||
|---|---|---|---|---|---|---|---|---|---|
| X ± SD | n | % | X ± SD | n | % | ||||
| Year of disease | 13.38 ± 5.89 | 12.24 ± 5.02 | 1.083 | 0.301 | |||||
| Age (years) | 63.20 ± 8.56 | 66.06 ± 8.73 | 1.654 | 0.101 | |||||
| Time of receiving information (min) | 3.76 ± 2.83 | 4.32 ± 2.54 | 1.402 | 0.3 | |||||
| Sociodemographic characteristics | |||||||||
| Gender | 0.043 | 0.836 | |||||||
| Male | 32 | 64 | 31 | 62 | |||||
| Female | 18 | 36 | 19 | 38 | |||||
| Education level | 1.208 | 0.547 | |||||||
| Not literate | 18 | 36 | 16 | 32 | |||||
| Primary school | 23 | 46 | 28 | 56 | |||||
| Secondary school/high school | 9 | 18 | 6 | 12 | |||||
| Number of hospitalizations per year | 3.938 | 0.414 | |||||||
| No | 3 | 6 | 6 | 12 | |||||
| 1 | 6 | 12 | 11 | 22 | |||||
| 2 | 5 | 10 | 6 | 12 | |||||
| 3 | 12 | 24 | 10 | 20 | |||||
| >4 | 24 | 48 | 17 | 34 | |||||
| Examine status/keep an appointment | |||||||||
| Yes | 50 | 100 | 50 | 100 | |||||
| No | |||||||||
| Type of information | 3.754 | 0.153 | |||||||
| Question–answer | 6 | 12 | 11 | 22 | |||||
| Method of expression | 26 | 52 | 17 | 34 | |||||
| Demonstration | 18 | 36 | 22 | 44 | |||||
| Informative person | 3.499 | 0.174 | |||||||
| Nurse | 24 | 48 | 22 | 44 | |||||
| Doctor | 18 | 36 | 25 | 50 | |||||
| Pharmacist | 8 | 16 | 3 | 6 | |||||
| Total | 50 | 100 | 50 | 100 | |||||

Figure 1.
Evaluation of the steps in which intervention and control group patients made mistakes in the pretest.

Figure 2.
Evaluation of the steps in which intervention and control group patients made mistakes in the posttest.
Table 3.
Comparison of the erroneous MDI use steps performed by the intervention and control group patients in the pretest and posttest.
| Measurement | Pretest | χ2 | P | Posttest | χ2 | P | ||
|---|---|---|---|---|---|---|---|---|
| I | C | I | C | |||||
| Incorrect | Incorrect | |||||||
| MDI Using steps | % | % | % | % | ||||
| 1st Step | - | - | - | - | - | - | - | - |
| 2nd Step | 56 | 44 | 1.440 | P > 0.05 | 16 | 30 | 2.767 | P > 0.05 |
| 3rd Step | 28 | 24 | 0.208 | P > 0.05 | 2 | 24 | 10.698 | P < 0.05* |
| 4th Step | 84 | 90 | 0.796 | P > 0.05 | 28 | 90 | 39.727 | P < 0.05* |
| 5th Step | 24 | 26 | 1.336 | P > 0.05 | - | 22 | 12.360 | P < 0.05* |
| 6th Step | 48 | 58 | 1.406 | P > 0.05 | 6 | 54 | 27.429 | P < 0.05* |
| 7th Step | 52 | 64 | 1.478 | P > 0.05 | 18 | 46 | 9.007 | P < 0.05* |
| 8th Step | 78 | 88 | 1.772 | P > 0.05 | 26 | 78 | 27.083 | P < 0.05* |
| 9th Step | 92 | 94 | 0.154 | P > 0.05 | 44 | 92 | 26.471 | P < 0.05* |
| 10th Step | - | - | - | - | - | - | - | - |