TABLE I.

Factors Associated with RCA Misses for NDI Suicide Cases (N = 222), 2002–2014

Diagnosis	RCA Match for NDI Suicide (N = 78)		RCA Misses for NDI Suicide (N = 144)
	%	n	%	n
Any depression	44.8	35	55.8	80
Major depression	35.9	28	36.8	53
Bipolar disorder	15.4	12	20.8	30
Schizophrenia	6.4	5	11.1	16
Other psychotic disorder	3.8	3	2.8	4
Posttraumatic stress disorder	21.8	17	23.6	34
Other anxiety disorder	14.1	11	12.5	18
Alcohol use disorder	37.2	29	44.4	64
Substance use disorder	30.8	24	30.0	43
Suicidal ideation	33.3	26	22.2	32
Suicide attempt	2.6	2	3.5	5
Comorbidity, mean (SD)	−0.12	0.8	−0.05	0.8
Method*
Firearm**	51.3	40	31.9	46
Overdose	14.1	11	23.6	34
Hanging	21.8	17	22.2	32
Other	12.8	10	22.2	32

n = number; N = total number; NDI = National Death Index; % = percent;

^*p < 0.05;

^**p < 0.01.