Table 1.

Baseline demographic and clinical characteristics of suicide attempters compared to random sample of non-attempters

	No prospective suicidal behavior	Prospective suicidal behavior	χ2 or t	p-value
Demographics and clinical characteristics
Gender, male, n (%)	232 (45)	59 (36)	3.53a	0.06
Past suicide attempt, n (%)	171 (31)	131 (73)	96.82a	<0.01
Age, years, mean (SD)	39.00 (12.90)	35.46 (12.05)	−3.08	<0.01
PDQ score-, mean (SD)	36.86 (18.40)	48.07 (16.92)	6.57	<0.001
Proposed acute suicide risk factors, mean (SD
Suicidal ideation	0.16 (0.34)	0.34 (0.48)	5.61	<0.01
Loss of interest	0.45 (0.64)	0.71 (0.78)	4.49	<0.01
Abnormal anxiety	4.74 (5.49)	5.89 (5.54)	2.47	0.01
Psychomotor agitation	0.24 (0.40)	0.38 (0.54)	3.63	<0.01
High-risk behavior	0.08 (0.27)	0.13 (0.35)	2.32	<0.01
Global functioning, mean (SD)
CGI overall	2.92 (1.26)	3.61 (1.17)	6.58	<0.001
GAF in last month	61.07 (12.09)	55.99 (12.03)	−4.95	<0.001
Mood effects, mean (SD)
Elevated mood	1.76 (3.37)	2.00 (3.54)	0.82	0.41
Abnormal irritability	3.87 (4.87)	5.98 (5.75)	4.89	<0.001
Depressed mood	0.43 (0.70)	0.52 (0.84)	1.07	0.29
Alcohol/substance abuse and headaches/migraines
Alcohol use (drinks per day), mean (SD)	0.74 (1.92)	0.82 (2.90)	0.44	0.66
History of substance use, n (%)	93 (16)	40 (22)	2.56a	0.11
History of migraines, n (%)	149 (26)	66 (35)	6.17a	0.01

Suicidal ideation, loss of interest, psychomotor agitation, high-risk behavior, and depressed mood are rated on a scale from −2 to +2. Abnormal anxiety, elevated mood, and abnormal irritability were rated as days in the last two weeks.

PDQ = Personality Disorders Questionnaire; CGI = Clinical Global Impression rating scale; GAF = Global Assessment of Functioning rating scale.

^aChi-square.