Table 2.
Model of the longitudinal decline in MMSE and other clinical tests using both sets of factors in participants with MCI
| Parameters | Diff. MMSE (β p-value) | Diff. ADAS-Cog 13 (β p-value) | Diff. CDR-SB (β p-value) |
|---|---|---|---|
| Age (baseline) | 0.15; 0.1728 | 0.03; 0.7905 | −0.17; 0.0909 |
| Time between scans | 0.00; 0.9753 | −0.02; 0.8235 | −0.00; 0.9920 |
| Sex (female) | −0.10; 0.2353 | −0.08; 0.3238 | −0.04; 0.6238 |
| Education | 0.14; 0.1105 | −0.10; 0.2001 | 0.00; 0.9904 |
| APOE ε4 (1 allele) | −0.08; 0.5334 | 0.12; 0.3677 | −0.06; 0.5992 |
| APOE ε4 (2 alleles) | −0.08; 0.6726 | 0.09; 0.6171 | 0.32; 0.0715 |
| AVF (baseline) | 0.12; 0.3324 | 0.12; 0.2749 | −0.09; 0.4031 |
| AVF (difference) | ***0.58; 0.0001 | ***−0.56; 0.0001 | ***−0.48; 0.0001 |
| NDF (baseline) | *0.21; 0.0259 | 0.05; 0.5403 | −0.05; 0.5897 |
| NDF (difference) | *0.22; 0.0186 | ***−0.41; 0.0001 | ***−0.36; 0.0001 |
| Cognition (baseline) | **−0.26; 0.0026 | **−0.21; 0.0064 | −0.13; 0.0890 |
All continuous variables were standardized prior to applying the model for easier comparison of parameter estimates (β). Significant associations with p < 0.05 are bolded (*, ** and *** for p < 0.05, 0.01 and 0.001 respectively). Cognition at baseline represents the score on the test being modeled at baseline. Difference defined as value at follow-up minus value at baseline. (MMSE: Mini-Mental State Exam; ADAS-Cog 13: Alzheimer’s Disease Assessment Scale; CDR-SB: Clinical Dementia Rating – Sum of Boxes; AVF: age- and vascular-related factor; NDF: neurodegenerative factor).