Table 4.
Plasma AD bioboconcentrations (pg/ml) by age groups.
| Age groups | Aβ40 mean ± SD (n) | Aβ42 mean ± SD (n) | t-Tau mean ± SD (n) |
|---|---|---|---|
| 20–29 | 62.21 ± 5.19 (21) | 15.71 ± 0.41 (21) | 16.51 ± 5.91 (21) |
| 30–39 | 61.23 ± 9.14 (16) | 15.57 ± 2.28 (16) | 17.18 ± 6.12 (16) |
| 40–49 | 56.48 ± 8.60 (15) | 16.47 ± 3.73 (17) | 18.83 ± 10.54 (16) |
| 50–59 | 57.95 ± 11.30 (88) | 15.42 ± 1.78 (93) | 16.07 ± 7.92 (93) |
| 60–69 | 59.58 ± 13.99 (132) | 15.40 ± 2.52 (135) | 17.85 ± 8.92 (135) |
| 70–79 | 60.72 ± 15.02 (74) | 15.13 ± 2.35 (77) | 17.98 ± 9.21 (77) |
| 80–91 | 58.61 ± 17.84 (32) | 15.60 ± 2.23 (32) | 22.37 ± 5.48 (32) |
SD, standard deviation; n, number of subjects.