Table 4.
Population descriptive of the Rotterdam Study.
| N | Total participants | Incident AD cases | Controls |
|---|---|---|---|
| 316 | 161 | 155 | |
| Age (SD) blood collection, years | 77.16 (5.39) | 77.43 (5.21) | 76.89 (5.59) |
| Age at onset/last follow-up (SD) | 84.99 (5.33) | 84.37 (5.01) | 85.63 (5.56) |
| Female (%) | 201 (63%) | 104 (65%) | 97 (63%) |
| Body Mass index (SD) | 27.32 (4.10) | 27.29 (3.75) | 27.37 (4.46) |
| Follow-up (SD) years | 7.82 (2.71) | 6.94 (1.71) | 8.74 (3.22) |
| APOE genotype | |||
| APOE 44/34/24 | 98 | 68 | 30 |
| APOE 33 | 171 | 76 | 95 |
| APOE 22/23 | 34 | 13 | 21 |
Abbreviations: AD, Alzheimer’s disease, SD, Standard deviation, APOE, apolipoprotein E gene.