| Variables | Number of assigned keywords | Frequency (%) | Mean ± standard deviation | ||||
| Latin | Persian | Latin | Persian | ||||
| Latin | Persian | ||||||
| Exact matching | 0 | 0 | 92 (34.3) | 83 (32.0) | 0.96 ± 0.87 | 0.92 ± 0.83 | |
| 1 | 1 | 107 (39.9) | 115 (42.9) | ||||
| 2 | 2 | 53 (19.8) | 49 (18.3) | ||||
| 3 | 3 | 14 (5.2) | 5 (1.9) | ||||
|
| 6 |
| 1 (0.4) | ||||
| Relative matching | 0 | 0 | 151 (56.3) | 109 (40.7) | 0.58 ± 0.75 | 0.82 ± 0.86 | |
| 1 | 1 | 82 (30.8) | 90 (33.6) | ||||
| 2 | 2 | 28 (10.4) | 43 (16.0) | ||||
| 3 | 3 | 5 (1.9) | 9 (3.4) | ||||
|
| 4 |
| 1 (0.4) | ||||
| A total of exact and relative matching | 0 | 0 | 36 (13.5) | 28 (10.4) | 1.48 ± 0.89 | 1.73 ± 0.99 | |
| 1 | 1 | 101 (37.7) | 68 (25.4) | ||||
| 2 | 2 | 97 (36.2) | 113 (42.2) | ||||
| 3 | 3 | 30 (11.2) | 34 (12.7) | ||||
| 4 | 4 | 2 (0.7) | 7 (2.6) | ||||
|
| 5 |
| 1 (0.4) | ||||
|
| 6 |
| 1 (0.4) | ||||
| Lack of matching | 0 | 0 | 10 (3.7) | 6 (2.2) | 2.66 ± 1.28 | 3.00 ± 1.64 | |
| 1 | 1 | 40 (14.9) | 40 (14.9) | ||||
| 2 | 2 | 71 (26.5) | 62 (23.1) | ||||
| 3 | 3 | 78 (29.1) | 64 (23.9) | ||||
| 4 | 4 | 48 (17.9) | 34 (12.7) | ||||
| 5 | 5 | 14 (5.2) | 20 (7.5) | ||||
| 6 | 6 | 5 (1.9) | 19 (7.1) | ||||
|
| 7 |
| 6 (2.2) | ||||
|
| 8 |
| 1 (0.4) | ||||