Evaluating Different Aspects of Prospective Memory in Amnestic and Nonamnestic Mild Cognitive Impairment

Table 2

Comparative percentages of impairment on different MPMT tasks.

	PMT Event 1 Cutoff ≤ 5	PMT Time 1 Cutoff ≤ 6	PMT Time 2 Cutoff ≤ 6	PMT Total Cutoff ≤ 12	PMT Event 1 + PMT Time 1; Cutoff ≤ 20
Normal elderly (𝑁=133)	26.9% impaired	7.7% impaired	3.1% impaired	10.0% impaired	9.2% impaired
aMCI (𝑁=71)	74.6% impaired	37.1% impaired	31.9% impaired	48.6% impaired	49.3% impaired
NaMCI (𝑁=17)	52.9% impaired	23.5% impaired	0.0% impaired	29.4% impaired	23.5% impaired
𝜒^2 (df = 2)	42.88^∗∗∗	26.57^∗∗∗	39.85^∗∗∗	37.45^∗∗∗	40.63^∗∗∗

Note. (1) ^∗∗∗𝑃<.001 by the chi-square procedure on percentages compared for each MPMT measure. (2) aMCI: amnestic MCI; NaMCI: nonamnestic MCI.