Clinical Study

Influence of APOE Genotype on Alzheimer’s Disease CSF Biomarkers in a Spanish Population

Table 1

Demographic, clinical, and genetic characteristics of the study population.

MCI patientsControl subjectsSignificance level

Number of cases 29 27 n.s.
Gender, male (%) 38 44 n.s.
Age (mean ± SD) 70.34 ± 7.3 68.74 ± 7.5 n.s.
Medical history
 HTA 16 17
 DM 2 8
 HPL 17 18
 Depression 7 6
MMSE Folstein 24 ± 0.8 28.48 ± 2.5 0.05
IQCODE 82.89 ± 3.5 52.62 ± 14.9 0.01
Progression at 2 years
 Stable normal 22
 Stable MCI 17
 Develop MCI 3
 Develop AD 12 (, ) 2 (, )
APOE genotype
ε2 2 8
ε3 14 18
ε4 13 1
Education (years) 5 6 n.s.

SD = standard deviation. HTA = hypertension. DM = diabetes mellitus. HPL = hyperlipidemia. MMSE = mini mental status examination. IQCODE = informant questionnaire on cognitive decline in the elderly. MCI = mild cognitive impairment. AD = Alzheimer’s disease.