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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