Table 2.

Differences between cases and controls in global coherence scores.

Participants AD cases	On-topic condition Score	Off-topic condition Score	Blank screen condition Score
A	83.45	57.27*	54.10*
B	43.22*	21.87*	32.71*
C	70.20	65.15	71.31
D	87.23	66.66	52.23
E	46.36*	28.57*	34.29*
M (SD) controls	80.55 (15.62)	82.34 (14.85)	80.20 (11.35)

Differences between each AD case and the control group are marked for p<0.05. P values indicate an estimated percentage of the control population that would have lower scores than the cases.