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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: Neurobiol Aging. 2017 Feb 16;54:1–9. doi: 10.1016/j.neurobiolaging.2017.02.005

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).