Table 2.
Severity of AD depending on years of evolution and family history of the disease
| Statistic | Severity of AD (MMSE score) | |||
|---|---|---|---|---|
|
|
||||
| Mild (24–21) | Moderate (20–15) | Moderately severe (14–10) | ||
| Time of AD evolution (years) | n | 355 | 415 | 146 |
| Mean (SD) | 2.3 ± 2.03 | 2.3 ± 1.73 | 3.32 ± 2.27 | |
| Median | 2 | 2 | 3 | |
| Minimum–maximum | 0–15 | 0–11 | 0–15 | |
| CI 95% | (2.09–2.51) | (2.13–2.47) | (2.95–3.69) | |
| ANOVA (P value) | <0.0001 | |||
| Family history of AD | ||||
| Yes | n (%) | 109 (30.28) | 120 (29.85) | 46 (31.29) |
| No | n (%) | 251 (69.72) | 282 (70.15) | 101 (68.71) |
| Chi-squared test (P value) | 0.9483 | |||
Abbreviations: AD, Alzheimer’s disease; ANOVA, analysis of variance; CI, confidence interval; MMSE, Mini-Mental State Examination; SD, standard deviation.