Table 3 Mean score of total cognitive function and sub-domains according to duration of diabetes using the Montreal Cognitive Assessment scale
From: Cognitive impairment among patients with diabetes in Saudi Arabia: a cross-sectional study
Scale/domains full scores | Duration | P | ||
|---|---|---|---|---|
< 10 years, n = 115 mean ± SD | 10–19 years, n = 81 mean ± SD | ≥ 20 years, n = 73 mean ± SD | ||
Total (30) | 21.8 ± 4.9 | 22.1 ± 4.9 | 19.6 ± 5.7 | 0.004 |
Domains | ||||
 Delayed recall (5) | 1.9 ± 1.8 | 2.2 ± 1.7 | 1.7 ± 1.6 | 0.137 |
 Verbal fluency (3) | 1.9 ± 0.98 | 1.8 ± 0.99 | 1.6 ± 0.88 | 0.062 |
 Abstraction (2) | 1.4 ± 0.76 | 1.3 ± 0.72 | 1.1 ± 0.81 | 0.07 |
 Alternating trial making (6) | 4.1 ± 1.7 | 4.4 ± 1.6 | 3.7 ± 1.9 | 0.032 |
 Visuoconstructional (5) | 3.6 ± 1.4 | 3.6 ± 1.4 | 2.9 ± 1.7 | 0.011 |
 Naming (3) | 2.7 ± 0.50 | 2.7 ± 0.54 | 2.6 ± 0.65 | 0.249 |
 Orientation (6) | 5.5 ± 0.97 | 5.6 ± 0.87 | 5.2 ± 1.1 | 0.43 |