CERAD Study Population (Database)
Basic Characteristics of Cases with Alzheimer’s Disease (N=1094)
and Control Subjects (N=463) at Entry into CERAD
| CASES | CONTROLS | |
| Year Entered | ||
| 1987 | 148 | 122 |
| 1988 | 315 | 219 |
| 1989 | 181 | 78 |
| 1991 | 188 | 15 |
| 1992-95 | 146 | 4 |
| Stage of Dementia (CDR Scale) | ||
| No Dementia | 0 | 460 |
| Uncertain | 37 | 3 |
| Mild | 564 | 0 |
| Moderate | 425 | 0 |
| 3 | 68 | 0 |
| Age at Entry (Years) | ||
| Less than 65 | 187 | 139 |
| 65-74 | 423 | 226 |
| More than 74 | 484 | 98 |
| Race | ||
| White | 890 | 429 |
| Black | 204 | 34 |
| Number of Return Visits | ||
| 0 | 197 | 38 |
| 1 | 124 | 18 |
| 2 | 134 | 39 |
| 3 | 636 | 638 |
| Sex | ||
| Male | 448 | 160 |
| Female | 646 | 303 |
| Education (Years) | ||
| Not Known | 6 | 0 |
| 0 – 8 | 234 | 36 |
| 9 – 11 | 117 | 39 |
| 12 | 324 | 136 |
| Greater than 12 | 413 | 252 |
| Entered Nursing Home | ||
| Yes | 519 | 18 |
| No | 575 | 445 |
| Death | ||
| Yes | 411 | 25 |
| No | 683 | 438 |
| Brain Autopsy | ||
| Yes | 202 | 8 |
| No | 209 | 17 |