From: Usefulness of event-related potentials in the assessment of mild cognitive impairment
Parameter | Total | MCI stable | AD-converters | Statistic | p |
---|---|---|---|---|---|
N (female) | 91(56) | 86(54) | 5(2) | χ2 = 1.037 | 0.309 |
Age Mean (SD) | 67.1(6.9) | 66.8(6.7) | 72.6(9.5) | Z = -1.666 | 0.096 |
MMSE Median | 28 | 28 | 26 | Z = -1.858 | 0.063 |
(IQR) | (26–29) | (26–29) | (24–28) | ||
N200L median | 240 | 238.5 | 306 | Z = -3.580 | < 0.001 |
(IQR), ms | (225–265) | (224–258) | (291–327) | ||
P300L median | 394 | 394 | 467 | Z = -1.916 | 0.055 |
(IQR), ms | (370–424) | (370–422) | (387–518) | ||
SWL median | 527 | 528 | 522 | Z = -0.165 | 0.869 |
(IQR), ms | (488–571) | (490–570) | (474–684) | ||
N200A median | 8.75 | 8.41 | 11.25 | Z = -1.734 | 0.083 |
(IQR), μV | (6.25–11.25) | (6.25–11.25) | (8.82–16.22) | ||
P300A median | 13.90 | 13.95 | 13.75 | Z = -0.944 | 0.345 |
(IQR), μV | (10.45–19.65) | (10.50–20.0) | (9.40–15.25) |