TABLE III.

Relative Risk of Discharge Characterization with Suicide Attempt (N = 4338)^a

	Suicide attempt sample (n = 4338)
	NSS				AAS/PPDS				Total
	Prevalence		(n = 1844)		Prevalence		(n = 2494)		Prevalence		(n = 4338)
	%	(SE)	RR	(95% CI)	%	(SE)	RR	(95% CI)	%	(SE)	RR	(95% CI)
Suicide attempt predicted riskb	–	–	6.3*	(5.0-8.0)	–	–	5.9*	(4.0-8.9)	–	–	6.2*	(4.9-7.9)
Discharge characterization
Honorable (reference)	1.2	(0.3)	1.0	–	0.9	(0.2)	1.0	–	1.0	(0.1)	1.0	–
General	0.9	(0.5)	0.6	(0.2-1.4)	2.2	(1.0)	1.4	(0.6-3.3)	1.4	(0.5)	0.9	(0.5-1.7)
Uncharacterized	2.2	(0.6)	1.2	(0.7-2.2)	0.0	(0.0)	0.0	–	2.1	(0.6)	1.3	(0.8-2.2)
Bad paperc	0.0	(0.0)	0.0	–	0.0	(0.0)	0.0	–	0.0	(0.0)	0.0	–
Missing—RA	0.6	(0.6)	2.2	(0.3-15.9)	0.4	(0.2)	1.5	(0.4-5.4)	0.5	(0.2)	1.8	(0.6-5.4)
Missing—GR	0.9	(0.3)	1.2	(0.6-2.6)	0.0	(0.0)	0.0	–	0.7	(0.2)	1.2	(0.6-2.2)
F 2,1,2	–	–	1.8	0.16	–	–	0.7	0.40	–	–	0.8	0.44
Total	1.2	(0.2)			0.8	(0.1)			1.0	(0.1)

Estimates reflect weighted data.

Abbreviations: NSS = New Soldier Study; AAS = All Army Study; PPDS = Pre-Post Deployment Study; RR = Relative Risk; CI = Confidence Interval; RA = Regular Army; GR = Guard/Reserve.

^*Significant at the 0.05 level, two-sided test.

^aRelative Risk estimates were computed from survey-design based modified Poisson regression models with robust variance estimates.

^bSuicide attempt predicted risk was computed from the predicted probability of suicide attempt based on a previously developed machine learning model using information available during active duty, including the demographic and Army career characteristics presented in Table I. The predicted probability was standardized to a mean equal to zero and SD equal to 1 to convert to a predicted risk score.

^cIncludes the following discharge characterizations: other than honorable, bad conduct, and dishonorable.