Table 1.
Summary characteristics of participants at each LBC1936 wave.
| Variables | Wave 1 (Baseline) | Wave 2 | Wave 3 | Wave 4 |
|---|---|---|---|---|
| Participants (n) | 1091 | 866 | 697 | 550 |
| Age in years, mean (SD) | 69.6 (0.8) | 72.5 (0.7) | 76.3 (0.7) | 79.4 (0.6) |
| Female, n (%) | 543 (49.8%) | 418 (48.3%) | 337 (48.4%) | 275 (50%) |
| FI, mean (SD) | 0.16 (0.1) | 0.18 (0.1) | 0.20 (0.1) | 0.21 (0.1) |
| Fried phenotype, n (%) Non-frail Pre-frail Frail |
478 (44%) 520 (48%) 93 (8%) |
Insufficient data to construct phenotype |
269 (39%) 326 (47%) 102 (14%) |
222 (40%) 259 (47%) 69 (13%) |
| CRP (mg/l), mean (SD) | 3.5 (2.4) | 3.3 (2.4) | 2.5 (2.3) | 2.4 (2.2) |
| Fibrinogen (g/L), mean (SD) | 3.3 (0.6) | 3.3 (0.6) | 3.0 (0.6) | 3.1 (0.5) |
Note. CRP: C - reactive protein; FI: Frailty Index.