Table 1.
Frequency of Clinical and Demographic Characteristics
| Characteristic | Non-progressor (n = 141) |
Progressors (n = 173) |
||
|---|---|---|---|---|
| Number of visits made | ||||
| 2 | 37 | (26%) | 18 | (10%) |
| 3 | 24 | (17%) | 29 | (17%) |
| 4 | 28 | (20%) | 34 | (19%) |
| 5 | 19 | (14%) | 43 | (25%) |
| 6 | 17 | (12%) | 28 | (16%) |
| 7 | 13 | (9%) | 15 | (9%) |
| 8 | 3 | (2%) | 5 | (3%) |
| 9 | 0 | (0%) | 1 | (1%) |
| Age at first UDS visit | ||||
| <60 | 0 | (0%) | 3 | (2%) |
| 60–69 | 4 | (3%) | 4 | (2%) |
| 70–79 | 25 | (18%) | 11 | (6%) |
| 80–89 | 61 | (43%) | 60 | (35%) |
| 90–94 | 35 | (25%) | 44 | (25%) |
| 95+ | 16 | (11%) | 51 | (30%) |
| Educationa | ||||
| No college | 32 | (23%) | 39 | (23%) |
| 1 – 4 years of college | 66 | (47%) | 83 | (49%) |
| At least some graduate school | 43 | (30%) | 48 | (28%) |
| Raceb | ||||
| White | 136 | (97%) | 166 | (97%) |
| Black | 2 | (1%) | 3 | (2%) |
| Multiracial | 3 | (2%) | 2 | (1%) |
| Sex | ||||
| Female | 88 | (62%) | 108 | (62%) |
| Male | 53 | (38%) | 65 | (38%) |
| APOE ε4c | ||||
| Non-carrier | 107 | (82%) | 112 | (70%) |
| Heterozygous | 22 | (17%) | 46 | (29%) |
| Homozygous | 1 | (1%) | 1 | (1%) |
a
3 progressors were missing data on education
b
2 progressors were missing data on race; defined using NACC derived variable “naccnihr”
c
11 non-progressors and 14 progressors were missing data on APOE ε4 allele frequency
NACC, National Alzheimer’s Coordinating Center; UDS, Uniform Data Set.