Table 1 Sample characteristics
Variable | Overall samplea (n = 273) | Sample subset with both CSF and blood (n = 72) |
|---|---|---|
Age, mean (SD) | 52.9 (11.1) | 53.0 (11.5) |
Sex, female, n (%) | 187 (68.5) | 50 (69.4) |
Race, White, n (%) | 238 (87.2) | 61 (84.7) |
Fisher, n (%) | ||
2 | 81 (29.7) | 20 (27.8) |
3 | 135 (49.5) | 37 (51.4) |
4 | 57 (20.9) | 15 (20.8) |
Smoking, n (%) | ||
No | 88 (32.2) | 28 (38.8) |
Yes | 147 (53.8) | 37 (51.4) |
Social | 3 (1.1) | 2 (2.8) |
Quit | 31 (11.4) | 3 (4.2) |
Unknown | 4 (1.5) | 2 (2.8) |
BMI, mean (SD) | 28.1 (7.2) | 28.8 (8.8) |