Characteristics of the study population at time of examination
| Body mass index* | Total, n (%) | ||||
|---|---|---|---|---|---|
| Normal weight, n (%) | Underweight, n (%) | Overweight, n (%) | Obesity, n (%) | ||
| Total | 5407 (100) | 353 (100) | 639 (100) | 97 (100) | 6502 (100) |
| Cognitive test score | |||||
| Low | 1339 (25) | 87 (25) | 206 (32) | 40 (41) | 1676 (26) |
| Moderate | 1369 (25) | 84 (24) | 178 (28) | 24 (25) | 1655 (26) |
| High | 1396 (26) | 95 (27) | 160 (25) | 20 (21) | 1672 (26) |
| Very high | 1303 (24) | 87 (25) | 95 (15) | 13 (13) | 1499 (23) |
| Education (years) | |||||
| Short | 1277 (24) | 74 (21) | 202 (32) | 32 (33) | 1588 (24) |
| Moderate | 1506 (28) | 96 (27) | 176 (28) | 32 (33) | 1811 (28) |
| Long | 1645 (30) | 120 (34) | 181 (28) | 23 (24) | 1971 (30) |
| Very long | 979 (18) | 63 (18) | 80 (13) | 10 (10) | 1132 (17) |
*Body mass index groups were defined as underweight (<18.5), normal (18.5 to <25.0), overweight (25.0 to <30) and obese (≥30.0). Six persons had missing data.