Table 2

Risk factors (and their HRs and 95% CIs) in the final multivariable model to predict risk of death by suicide after an emergency treatment for self-harm

	Adjusted HR	95% CI		P value
General demographics
(Age at index/10)⁻²*	0.015	0.005	0.046	<0.001
Female*	0.50	0.42	0.59	<0.001
Substance misuse
Current or lifetime alcohol use disorder (excluding alcohol intoxication)*	0.97	0.80	1.18	0.785
Current or lifetime drug use disorder (including drug intoxication)*	1.36	1.13	1.64	0.001
Treatment in the past 3 months
Any psychotropic medication	2.14	1.68	2.74	<0.001
History of self-harm
Overdose of any psychotropic medication as part of index self-harm episode	1.52	1.02	2.26	0.039
Hanging, strangulation or suffocation as part of index self-harm episode	2.64	1.42	4.90	0.002
Lifetime history of self-harm prior to index*	1.16	0.94	1.43	0.172
History of self-harm in the past 12 months prior to index*	1.36	1.07	1.73	0.013
Overnight admission	1.76	1.47	2.11	<0.001
Mental health in the past 12 months
Any psychiatric disorder except substance use disorders	1.66	1.37	2.01	<0.001

*Core factor.