Table 1. Demographic characteristics of participants.
| Parameter | Normal | EMCI | LMCI | AD |
|---|---|---|---|---|
| Number | 86 | 108 | 120 | 81 |
| Age (Year) | 72.7 (56.2–89.6) | 70.4 (55–88.3) | 71.9 (48.1–85.9) | 75.1 (58.2–89.6) |
| Female (%) | 48 (55.8) | 45 (41.7) | 48 (40.0) | 33 (40.7) |
| Education (Year) | 16 (6–20) | 16 (11–20) | 16 (4–20) | 16 (9–20) |
| White (%) | 69 (80.2) | 104 (96.3) | 116 (96.7) | 74 (91.4) |
| Married (%) | 58 (67.4) | 85 (78.7) | 97 (80.8) | 71 (87.7) |
| APOEε4=0 (%) | 56 (65.1) | 52 (48.2) | 50 (41.7) | 19 (23.5) |
| APOEε4=1 (%) | 28 (32.6) | 47 (43.5) | 47 (39.2) | 44 (54.3) |
| APOEε4=2 (%) | 2 (2.3) | 9 (8.3) | 23 (19.1) | 18 (22.2) |
| Aβ42 (μg/mL) | 209.2 (99.2–311.4) | 180.3 (86.1–327.3) | 149.1 (40.5–04.3) | 131.8 (81.8–280.1) |
| p-tau (μg/mL) | 27.8 (6.9–95) | 32.9 (9.9–89.1) | 37.2 (10.8–136.0) | 49.8 (22.3–145.5) |
| The Ratio | 7.7 (1.6–30.3) | 5.2 (1.3–21.3) | 3.8 (1.0–23.6) | 2.4 (0.6–7.7) |
| ADAS-cog | 7.67 (0–17) | 8 (1–16) | 10.83 (1–27) | 21 (9–38) |
| Hippocampus (mL) | 7.609 (5.172–9.543) | 7.197 (4.554–9.993) | 6.678 (3.514–9.902) | 5.856 (4.065–7.804) |
The table was summarised as mean (range) for continuous data and count (percentage) for categorical data.