Table 5. Sample characteristics of Alzheimer disease, fibrinogen, HDL and uric acid data in the genotyped and imputed sample.
| Alzheimerdisease | Fibrinogen(mg/dl) | HDL (mg/dl) | Uric acid(mg/dl) | |
| Sample size | 4200 | 8229 | 9453 | 10491 |
| Phenotype | 284 (6.8%) | 321.2 (67.9) | 52.6 (16.1) | 5.3 (1.5) |
| Age | 78.2 (8.2) | 48.0 (12.0) | 51.2 (13.2) | 38.9 (9.8) |
| Sex (female) | 2318 (55.2%) | 4414 (53.6%) | 5079 (53.7%) | 5443 (51.9%) |
| Original cohort | 1899 (45.2%) | 1062 (13%) | 2044 (21.6%) | 1984 (18.9%) |
| Offspring cohort | 2301 (54.8%) | 3131 (38%) | 3339 (35.3%) | 4459 (42.5%) |
| Third Generation cohort | NA | 4036 (49%) | 4070 (43.1%) | 4048 (38.6%) |
| Imputed | 978 (23.3%) | 942 (11.4%) | 1313 (13.9%) | 2248 (21.4%) |
| Length of follow-up (years) | 13.2 (8.2) | NA | NA | NA |
For continuous variables, mean value and standard deviation (in parenthesis) are presented, while for binary variables, the number of cases and its proportion (in parenthesis) are presented.