Table 7.
Systematic review of the association between T2D and Letter fluency tests and changes of cognition.
| Authors | T2D at intake n(%) |
Cognitive test | Cognitive status Mean (SE) |
Cognitive changes Mean (SE) |
||||
|---|---|---|---|---|---|---|---|---|
| Non-DM | DM | p Value | Non-DM | DM | p Value | |||
| Bangen et al. [13] | n = 378 (25.3%) | Letter Fluency | 10.1 ± 4.4 | 8.7 ± 4.0 | <0.001 | 9.8 ± 6.1 | 8.7 ± 6.2 | 0.007 |
| Espeland et al. [16] | n = 179 (8.3%) | Letter fluency | 39.83 (12.54) | 37.39 (12.12) | 0.01 | – | – | – |
| Rouch et al. [7] | n = 36 (22 %) | Letter Fluency | 17.65 (6.73) | 17.66 (8.11) | 0.99 | 0.23 (0.45) | 0.24 (0.42) | 0.93 |
| Samaras et al. [8] | n = 511 (49.3 %) | Language (z-score) | −1.23 (0.15) | −0.93 (0.15) | −0.95 (0.06) | −0.71 (0.06) | 0.46 | |