Table 1.
Demographic and Clinical Characteristics of Participants.a,b,c
| Variables | Participants, Mean (SD) | Range Statistic (Min-Max) |
|---|---|---|
| Age (years) | 57.23 (5.18) | 20.70 (45-65) |
| Education (years) | 15.97 (2.49) | 16 (9-25) |
| Apathy Evaluation Scale–self-rated | 24.85 (5.94) | 44 (18-62) |
| Apathy Evaluation Scale–informant | 24.17 (6.97) | 54 (18-72) |
| Mini-Mental State Examination | 29.28 (1.1) | 9 (21-30) |
| Center for Epidemiologic Studies Depression Scale | 7.52 (7.07) | 43 (0-43) |
| n (%) | ||
| Gender | ||
| Male | 94 (29.7) | |
| Female | 222 (70.3) | |
| Race | ||
| White | 285 (90.2) | |
| Black | 31 (9.8) | |
| Marital status | ||
| Married | 242 (76.6) | |
| Widowed | 6 (1.9) | |
| Divorced | 30 (9.5) | |
| Separated | 3 (0.9) | |
| Never married | 20 (6.3) | |
| Living as married | 11 (3.5) | |
| Other | 4 (1.3) | |
| APOEe4 status | ||
| No allele e 4 | 192 (60.8) | |
| Heterozygous 4 | 95 (30.1) | |
| Homozygous 4 | 17 (5.4) | |
| Genotype 24 | 10 (3.2) | |
| Missing | 2 (0.6) | |
| Parental history of AD | ||
| Negative parental history | 62 (19.6) | |
| Positive parental history | 226 (71.5) | |
| Unknown | 28 (8.9) |
Abbreviation: APOE, apolipoprotein E.
a Apathy Evaluation Scales–self-rated or informant rated: total score = 72.
bMini-Mental State Examination: total score = 30/30. Scores above 26/30 are within normal limits.
c Center for Epidemiologic Studies Depression Scale: total score = 60.