Table 2. Montreal Cognitive Assessment (MoCA) test results for all participants over the six months period.
MoCA-B: Montreal Cognitive Assessment-Basic, IQR: Interquartile range, Sig.: significance
P-value > 0.05: Non-significant (NS); P-value < 0.05: Significant (S); P-value < 0.01: Highly significant (HS).
*: Chi-square test; ≠: Wilcoxon signed rank test
| MoCA test for educated group | At start, N (%) | After two months, N (%) | After six months, N (%) | Test value | P-value | Sig. | |
| Visuospatial affection | 5 (11.1) | 0 (0.0) | 6 (13.3) | 6.136* | 0.047 | S | |
| Language affection | 0 (0.0) | 0 (0.0) | 22 (48.9) | 52.566* | <0.001 | HS | |
| Attention affection | 3 (6.7) | 10 (22.2) | 30 (66.7) | 40.200* | <0.001 | HS | |
| Abstraction affection | 0 (0.0) | 0 (0.0) | 0 (0.0) | – | – | – | |
| Recall affection. | 21 (46.7) | 31 (68.9) | 26 (57.8) | 4.555* | 0.103 | NS | |
| Orientation affection | 13 (28.9) | 19 (42.2) | 19 (42.2) | 2.269* | 0.322 | NS | |
| Cut-off score interpretation | Normal | 45 (100.0) | 45 (100.0) | 21 (46.7) | 58.378* | <0.001 | HS |
| Abnormal | 0 (0.0) | 0 (0.0) | 24 (53.3) | ||||
| Total score MoCA | Median (IQR) | 29 (29 – 30) | 29 (28 – 30) | 25 (25 – 30) | 4.666≠ | <0.001 | HS |
| Range | 28 – 30 | 27 – 30 | 24 – 30 | ||||
| MoCA test for uneducated group | At start, N (%) | After two months, N (%) | After six months, N (%) | Test value | P-value | Sig. | |
| Visuospatial affection | 2 (5.0) | 0 (0.0) | 7 (17.5) | 9.369* | 0.009 | HS | |
| Language affection | 2 (5.0) | 2 (5.0) | 26 (65.0) | 51.200* | <0.001 | HS | |
| Attention affection | 4 (10.0) | 8 (20.0) | 30 (75.0) | 43.077* | <0.001 | HS | |
| Abstraction affection | 0 (0.0) | 0 (0.0) | 0 (0.0) | – | – | – | |
| Recall affection. | 25 (62.5) | 29 (72.5) | 31 (77.5) | 2.259* | 0.323 | NS | |
| Orientation affection | 15 (37.5) | 16 (40.0) | 19 (47.5) | 0.891* | 0.640 | NS | |
| Cut-off score interpretation. | Normal | 40 (100.0) | 40 (100.0) | 15 (37.5) | |||
| Abnormal | 0 (0.0) | 0 (0.0) | 25 (62.5) | 63.158* | <0.001 | HS | |
| Total score MoCA-B | Median (IQR) | 29 (29–30) | 29 (28–29) | 24 (24–28) | 4.692≠ | <0.001 | HS |
| Range | 27–30 | 28–30 | 23–30 | ||||
| Total score of MoCA and MoCA-basic | At start, N (%) | After two months, N (%) | After six months, N (%) | Test value | P-value | Sig. | |
| Cut-off score interpretation | Normal | 85 (100.0) | 85 (100.0) | 36 (42.4) | 126.107* | <0.001 | HS |
| Abnormal | 0 (0.0) | 0 (0.0) | 49 (57.6) | ||||
| Total score | Median (IQR) | 29 (29–30) | 29 (28–29) | 25 (24–29) | 58.968≠ | <0.001 | HS |
| Range | 27–30 | 27–30 | 23–30 | ||||