. Author manuscript; available in PMC: 2016 Mar 1.

Published in final edited form as: Int J Geriatr Psychiatry. 2014 May 12;30(3):274–283. doi: 10.1002/gps.4138

Table 2. Group Differences in DKEFS Total Time to Completion by Condition, with High-Lethality Suicide Attempters as a Reference Group (n=102).

	Model 1: age-corrected					Model 2: age, MMSE, and information processing speed-corrected^*					Model 3: age, MMSE, information processing speed, and accuracy- corrected^^,^*

Independent variable	Standardized coefficient	P-Value	η_p²	Post-hoc	Model R²	Standardized coefficient	P-Value	η_p²	Post-hoc	Model R²	Standardized coefficient	P-Value	η_p²	Post-hoc	Model R²
Inhibition Total Time to Completion

					0.276					0.521					0.521

Group	0.37	<.001	.173	HSA> SI, D, HC		0.18	.019	.084	HSA> SI, HC		0.18	.025	.081	HSA> SI, HC
Age	0.42	<.001	.172	-		0.27	<.001	.118	-		0.27	.001	.112	-
MMSE	-	-		-		-0.10	.15	.017	-		-0.10	.18	.013	-
Color naming time to completion	-	-		-		0.5	<.001	.321	-		0.50	<.001	.318	-
Uncorrected errors	-	-		-		-	-		-		0.02	.76	.003	-

Inhibition-Switching Total Time to Completion

					0.165					0.530					0.547

Group	0.26	.006	.083	HSA> D, HC		0.05	.47	.020	NS		0.04	.58	.014	NS
Age	0.34	.001	.107	-		0.15	.038	.049	-		0.16	.028	.053	-
MMSE	-	-		-		-0.20	.006	.082	-		-0.18	.014	.064	-
Color naming time to completion	-	-		-		0.59	<.001	.392	-		0.57	<.001	.383	-
Uncorrected errors	-	-		-		-	-		-		0.13	.063	.034	-

HSA: High-Lethality Suicide Attempters, LSA: Low-Lethality Suicide Attempters, SI: Suicide Ideators, D: Depressed control subjects, HC: Healthy Control subjects.

NS: Non significant.

η_p²: Partial Eta squared

N=100 (one healthy control and one low-lethality suicide attempter were missing the MMSE score).

^**

Gender and education did not explain significant variance in any of the models.