Table 1.
Descriptive characteristics of the participants by trajectories of global cognitive performance (n = 6072) at the end of follow-up (phase 7)
| Trajectory of cognitive performance |
||||
|---|---|---|---|---|
| Low n = 1174 | Intermediate n = 3030 | High n = 1868 | P-value for heterogeneity | |
| n (%) | n (%) | n (%) | ||
| Sex: male | 619 (14%) | 2, 284 (53%) | 1, 391 (33%) | |
| female | 555 (31%) | 746 (42%) | 477 (27%) | <0.001 |
| Socioeconomic status: high | 79 (4%) | 965 (47%) | 980 (49%) | |
| intermediate | 494 (16%) | 1701 (56%) | 846 (28%) | |
| low | 601 (50%) | 364 (36%) | 42 (4%) | <0.001 |
| Ethnicity: White | 802 (15%) | 2874 (52%) | 1852 (33%) | |
| other | 371 (69%) | 151 (28%) | 16 (3%) | <0.001 |
| Mean (SE) | Mean (SE) | Mean (SE) | ||
| Age (years) | 64.2 (0.2) | 61.5 (0.1) | 58.5 (0.1) | <0.001 |
| Body mass index (kg/m2) | 27.4 (0.1) | 26.6 (0.1) | 26.3 (0.1) | <0.001 |
| Alcohol consumption past 1 month (range 1 > 2/day to 6) | 3.7 (0.0) | 2.9 (0.0) | 2.6 (0.0) | <0.001 |
| C-reactive protein (mg/l) | 3.3 (0.2) | 2.4 (0.1) | 2.2 (0.1) | <0.001 |
| Fasting glucose (mmol/l) | 5.6 (0.0) | 5.4 (0.0) | 5.4 (0.0) | <0.001 |
| LDL-cholesterol (mmol/l) | 3.4 (0.0) | 3.5 (0.0) | 3.5 (0.0) | 0.007 |
| Diastolic blood pressure (mmHg) | 69.8 (0.4) | 70.9 (0.2) | 70.9 (0.3) | 0.012 |
| Systolic blood pressure (mmHg) | 126.5 (0.6) | 125.3 (0.3) | 123.4 (0.4) | <0.001 |
SE, standard error.