123 Distinct brain MRI phenotypes and their association with long-term dementia risk 6 S8 N=42 S9 N=105 S10 N=241 S11 N=240 S12 N=87 S13 N=245 S14 N=190 S15 N=111 P value 72.7 ± 3.2 76.8 ± 4.8 71.6 ± 3.4 76.5 ± 5.0 78.2 ± 4.9 75.6 ± 5.0 78.8 ± 5.3 77.3 ± 5.1 <0.001 10.53 ± 1.66 9.43 ± 2.68 10.70 ± 1.54 9.54 ± 2.89 8.18 ± 3.10 10.28 ± 2.50 8.78 ± 2.85 9.14 ± 2.77 <0.001 62% 54% 81% 61% 37% 79% 45% 43% <0.001 5% 12% 5% 9% 11% 8% 15% 15% <0.001 27.18 ± 4.28 25.91 ± 3.52 27.18 ± 3.99 26.90 ± 4.19 28.41 ± 4.52 27.29 ± 4.55 27.12 ± 3.51 26.72 ± 3.93 0.021 79% 84% 64% 83% 90% 82% 88% 82% <0.001 17% 10% 4% 9% 11% 11% 15% 15% <0.001 5.63 ± 0.87 5.69 ± 1.22 5.97 ± 1.07 5.76 ± 1.23 5.52 ± 1.08 5.75 ± 1.14 5.48 ± 1.22 5.20 ± 1.12 0.023 36% 45% 54% 49% 38% 43% 44% 44% 0.034 45% 44% 39% 40% 47% 42% 46% 45% 0.295 19% 11% 7% 11% 15% 15% 10% 11% 0.214 7% 21% 7% 21% 23% 18% 29% 30% <0.001
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