Table 4.

Post Hoc Tukey’s HSD Test for Cognitive and Functional Measures (n = 85) Only significant clinical group differences (p < 0.05) following post hoc Tukey’s HSD test shown. Age was added as a covariate in all models.

		t ratio, p value 95% CI
Variables	ANCOVA Model, p value	CN-Dementia	CN-MCI	MCI-Dementia
FAQ (n = 82)	F(3,78) = 74.28, p <0.001	14.46, <0.001 [2.12− 2.96]	-	12.22, <0.001 [1.83 − 2.72]
Logical Memory Immediate Recall	F(3,81) = 42.19, p <0.001	−9.71, <0.001 [−2.51 – −1.52]	7.66, <0.001 [0.81 – 1.55]	−3.78, 0.001 [−1.37 – −0.31]
Category Fluency (n = 84)	F(3,80) = 14.48, p <0.001	−5.45, <0.001 [−2.18 – −0.85]	4.50, <0.001 [0.42 – 1.37]	-
Boston Naming Test (n = 47)	F(3,43) = 15.65, p <0.001	−6.16, <0.001 [−2.54 – −1.10]	-	−4.41, <0.001 [−2.17 – −0.63]
Sum of Total Trials on RAVLT (n = 84)	F(3,80) = 19.23, p <0.001	−6.20, <0.001 [−2.27 – −1.01]	5.02, <0.001 [0.50 – 1.40]	−2.46, 0.04 [−1.36 – −0.02]
Number of Trials Learned on RAVLT (n = 84)	F(3,80) = 8.39, p <0.001	−4.46, <0.001 [−2.08 – −0.63)	3.11, 0.007 [0.16 – 1.20]	-
Part A on Trailmaking Test (n = 84)	F(3,80) = 20.04, p <0.001	6.43, <0.001 [1.05 – 2.29]	−2.91, 0.01 [−0.98 – −0.10]	4.09, <0.001 [0.47 – 1.79]
Part B on Trailmaking Test (n = 80)	F(3,76) = 23.02, p <0.001	6.11, <0.001 [0.97 – 2.22]	−3.74, 0.001 [−1.12 – −0.25]	3.32, 0.004 [0.26 – 1.58]

Abbreviations: ANOVA = analysis of covariance; CN = cognitively normal; FAQ = Functional Activities Questionnaire; HSD = honestly significant difference; MCI = mild cognitive impairment; RAVLT = Rey Auditory Verbal Learning Test