. Author manuscript; available in PMC: 2013 Jul 1.

Published in final edited form as: Psychol Med. 2012 Nov 9;43(7):1465–1474. doi: 10.1017/S0033291712002504

Table 4.

Results of multivariate hierarchical Cox regression predicting time to suicide attempt

	Block 1		Block 2		Block 3		Block 4
χ² (df)	99.47 (1)^*		125.13 (4)^*		134.62 (6)^*		134.84 (7)^*
Change in χ² (df)	–		20.43 (3)^*		7.26 (2)		0.85 (1)
	HR	99% CI	HR	99% CI	HR	99% CI	HR	99% CI
History of suicidality	11.50^*	5.18–25.53	9.15^*	3.93–21.33	8.50^*	3.60–20.08	7.89^*	3.27–19.01
Post-traumatic stress disorder at baseline			1.67	0.60–4.68	1.53	0.56–4.23	1.60	0.58–4.39
Major depressive disorder at baseline			2.75^*	1.17–6.44	2.46^*	1.06–5.70	2.15	0.85–5.40
Intermittent depressive disorder at baseline			3.35^*	1.41–7.97	3.89^*	1.59–9.51	3.70^*	1.50–9.15
Epilepsy					2.39	0.77–7.42	2.28	0.73–7.12
Pain					1.12	0.96–1.31	1.11	0.95–1.30
Social functioning							1.21	0.71–2.07

HR, Hazard ratio; CI, confidence interval.

p < 0.01.