. Author manuscript; available in PMC: 2014 Apr 1.

Published in final edited form as: Suicide Life Threat Behav. 2012 Dec 28;43(2):139–149. doi: 10.1111/sltb.12003

Table 4.

Insomnia and nightmare duration predicting suicide risk, controlling for other symptoms of psychopathology including insomnia and nightmare symptoms^*

Predictors	R²	β	t	p
Step 1:	.28			<.01
Insomnia Symptoms		.00	.07	.95
Nightmare Symptoms		.01	0.24	.81
Depressive Symptoms		.50	5.86	<.01
Anxiety Symptoms		−.18	−2.03	0.04
PTSD Symptoms		.20	2.52	0.01
Step 2:	.33
Insomnia Symptom Duration		.23	4.26	<.01
Nightmare Duration		.13	2.41	.02

Note: significant results shown in boldface type.

Statistics are after items involving sleep were removed from the measures of depressive symptoms, PTSD symptoms, and anxiety symptoms.