Table 1.

Population demographics and characteristics

Variable	Mean (±SD)/frequency (%)
Age, years	61.86 (±15.50)
Sex
Female	39 (35.1%)
Male	72 (64.9%)
Ethnicity
African American	24 (21.6%)
Caucasian	50 (45.0%)
Hispanic	27 (24.3%)
Asian	7 (6.3%)
Others	3 (2.7%)

Abbreviation: SD, standard deviation.