Table 2.
The fitted model parameters of susceptibility and R2* in gray matter
χ = α[1 − exp(−β× age)] + γ | R2* = α[1 − exp(−β× age)]+ γ | ||||||
---|---|---|---|---|---|---|---|
α (ppm) | β (year−1) | γ (ppm) | α (s−1) | β (year−1) | γ (s−1) | ||
SC | Male | 0.04 ± 0.27 | 0.01 ± 0.04 | 0.00 ± 0.01 | 23 ± 12 | 0.10 ± 0.05 | 6 ± 12 |
Female | 0.02 ± 0.06 | 0.01 ± 0.05 | 0.00 ± 0.01 | 18 ± 17 | 0.10 ± 0.09 | 10 ± 17 | |
Both | 0.03 ± 0.12 | 0.01 ± 0.04 | 0.00 ± 0.00 | — | — | — | |
Both (>7 y/o) | 0.05 ± 0.59 | 0.00 ± 0.05 | 0.00 ± 0.01 | 18 ± 7 | 0.08 ± 0.04 | 11 ± 7 | |
MC | Male | 0.05 ± 0.05 | 0.01 ± 0.02 | 0.00 ± 0.00 | 22 ± 6 | 0.06 ± 0.03 | 11 ± 7 |
Female | 0.04 ± 0.01 | 0.05 ± 0.03 | −0.01 ± 0.01 | 28 ± 9 | 0.07 ± 0.03 | 5 ± 9 | |
Both | 0.04 ± 0.00 | 0.03 ± 0.02 | 0.00 ± 0.01 | — | — | — | |
Both (>7 y/o) | 0.03 ± 0.01 | 0.02 ± 0.02 | 0.00 ± 0.01 | 24 ± 5 | 0.06 ± 0.02 | 9 ± 5 | |
PU | Male | 0.16 ± 0.14 | 0.01 ± 0.02 | 0.00 ± 0.02 | 26 ± 6 | 0.03 ± 0.03 | 10 ± 8 |
Female | 0.22 ± 0.24 | 0.01 ± 0.01 | −0.01 ± 0.02 | 47 ± 64 | 0.01 ± 0.02 | 14 ± 5 | |
Both | 0.20 ± 0.14 | 0.01 ± 0.01 | −0.01 ± 0.01 | — | — | — | |
Both (>7 y/o) | 0.17 ± 0.09 | 0.01 ± 0.01 | −0.01 ± 0.02 | 49 ± 74 | 0.02 ± 0.02 | 12 ± 4 | |
GP | Male | 0.14 ± 0.04 | 0.12 ± 0.05 | −0.01 ± 0.04 | 28 ± 12 | 0.06 ± 0.04 | 14 ± 13 |
Female | 0.12 ± 0.04 | 0.10 ± 0.04 | 0.00 ± 0.04 | 33 ± 26 | 0.08 ± 0.06 | 8 ± 27 | |
Both | 0.13 ± 0.03 | 0.11 ± 0.03 | 0.00 ± 0.03 | — | — | — | |
Both (>7 y/o) | 0.09 ± 0.04 | 0.07 ± 0.04 | 0.04 ± 0.05 | 30 ± 12 | 0.07 ± 0.04 | 11 ± 13 | |
CN | Male | 0.06 ± 0.02 | 0.07 ± 0.04 | 0.00 ± 0.02 | 17 ± 4 | 0.04 ± 0.03 | 10 ± 6 |
Female | 0.06 ± 0.02 | 0.04 ± 0.03 | 0.01 ± 0.02 | 23 ± 21 | 0.01 ± 0.02 | 13 ± 5 | |
Both | 0.06 ± 0.01 | 0.05 ± 0.02 | 0.01 ± 0.01 | — | — | — | |
Both (>7 y/o) | 0.06 ± 0.02 | 0.05 ± 0.03 | 0.00 ± 0.02 | 18 ± 3 | 0.02 ± 0.02 | 12 ± 4 | |
RN | Male | 0.13 ± 0.04 | 0.06 ± 0.03 | −0.03 ± 0.04 | 28 ± 11 | 0.06 ± 0.04 | 9 ± 13 |
Female | 0.11 ± 0.04 | 0.06 ± 0.04 | −0.02 ± 0.05 | 27 ± 18 | 0.07 ± 0.05 | 8 ± 19 | |
Both | 0.12 ± 0.03 | 0.06 ± 0.03 | −0.03 ± 0.03 | — | — | — | |
Both (>7 y/o) | 0.06 ± 0.02 | 0.05 ± 0.03 | 0.00 ± 0.02 | 28 ± 10 | 0.06 ± 0.03 | 8 ± 11 | |
SN | Male | 0.13 ± 0.04 | 0.08 ± 0.04 | −0.02 ± 0.05 | 39 ± 36 | 0.10 ± 0.09 | 1 ± 36 |
Female | 0.12 ± 0.05 | 0.08 ± 0.04 | −0.02 ± 0.05 | 32 ± 18 | 0.07 ± 0.05 | 8 ± 19 | |
Both | 0.12 ± 0.03 | 0.08 ± 0.03 | −0.02 ± 0.03 | — | — | — | |
Both (>7 y/o) | 0.17 ± 0.10 | 0.10 ± 0.06 | −0.07 ± 0.10 | 34 ± 17 | 0.08 ± 0.04 | 5 ± 17 | |
DN | Male | 0.12 ± 0.04 | 0.05 ± 0.04 | −0.02 ± 0.04 | 26 ± 22 | 0.07 ± 0.08 | 10 ± 24 |
Female | 0.13 ± 0.04 | 0.02 ± 0.03 | 0.00 ± 0.04 | 30 ± 14 | 0.04 ± 0.04 | 11 ± 17 | |
Both | 0.12 ± 0.02 | 0.04 ± 0.02 | −0.01 ± 0.03 | — | — | — | |
Both (>7 y/o) | 0.14 ± 0.04 | 0.04 ± 0.03 | −0.03 ± 0.05 | 28 ± 11 | 0.05 ± 0.04 | 12 ± 13 |