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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Alzheimers Dement. 2014 Nov 15;11(9):1080–1089. doi: 10.1016/j.jalz.2014.09.002

Table 2.

ECog total scores for informant-report and self-report across diagnostic groups

Informant-ratings Self-report
Diagnostic group n M SD n M SD p-value1
Normal 300 1.172 0.26 307 1.343 0.31 <.0001
EMCI 305 1.642 0.54 310 1.79 0.53 <.0001
LMCI 249 1.882 0.64 251 1.81 0.54 .28
AD 211 2.822 0.66 212 1.90 0.65 <.0001
Total 1,065 1.79 0.78 1,080 1.68 0.54 .08

Note: ECog=Everyday Cognition score; M=mean; SD=standard deviation

1

p-value is for the comparison of the informant ratings to the self-report; the raw p-value is reported, but is significant after correction for multiple comparisons if p<.008

2

All groups are significantly different from one another (corrected p<.0001); obtained from a tobit regression model adjusting for age, gender, and APOE4 status.

3

Normals are significantly different from the other groups (corrected p<.0001), but other groups are similar (EMCI vs LMCI: p=.60; EMCI vs AD: p=.24; LMCI vs AD: p=.51); obtained from a tobit regression model adjusting for age, gender, and APOE4 status.