Genetic Variants in CSMD1 Gene Are Associated with Cognitive Performance in Normal Elderly Population

Table 1

Demographic and health characteristics of the sample.

Characteristics	Mean ± SD or % where indicated
Age, years	70.9 ± 5.7
Gender, female	74%
Education
Years of education	13.3 ± 3.1
Min education, years	4
Max education, years	20
Maximum achieved level of education
Less than high school graduate	11%
High school graduate	8%
Some college or associate’s degree	32%
Bachelor’s degree	42%
Master’s or higher professional degree
Doctoral degree	7%
Memory testing history	7%
Clinical reasons	3%
Research participant	3%
Health characteristics
Coronary artery disease	44%
Atrial fibrillation	24%
Stroke	7%
Congestive heart failure	17%
High blood pressure	81%
Obesity	26%
Diabetes, type 2	18%
Smoking
Smoking during last 30 days	9%
Smoking more than 100 cigarettes over life	20%