Table 2. Distribution of participants in the study by location.
| Location | Frequency | Percent |
|---|---|---|
| Zanjan | 7 | 3/6 |
| Arak | 2 | 1 |
| Ardabil | 6 | 3/1 |
| Urmia | 1 | 0/5 |
| Esfahan | 6 | 3/1 |
| Afghanistan | 3 | 1/5 |
| Ahwaz | 1 | 0/5 |
| Ilam | 3 | 1/5 |
| Mazandaran | 3 | 1/5 |
| Lorestan | 16 | 8/2 |
| Tehran | 99 | 50/8 |
| Khorasan | 2 | 1 |
| Rasht | 1 | 0/5 |
| Semnan | 4 | 2/1 |
| Kordestan | 7 | 3/6 |
| Shahrood | 5 | 2/6 |
| Gazvin | 2 | 1 |
| Qom | 1 | 0/5 |
| Karaj | 16 | 8/2 |
| Kermanshah | 5 | 2/6 |
| Golestan | 4 | 2/1 |
| Hamadan | 1 | 0/5 |