TABLE 1.

Demographic and Baseline Clinical Characteristics of Depressed Subjects With Expressed Suicidal Intent^a Measured Before an Acute Course of ECT (Baseline Acute Phase)

	Total Study Group (N=444)		Subjects With Expressed Suicidal Intent
Baseline Variable			Low (N=313)		High (N=131)		Analysis
	N	%	N	%	N	%	χ2 (df=1)b	p
Female gender	303	68.2	221	70.6	82	62.6	2.7	0.09
Psychotic	132	29.7	97	30.1	35	26.7	0.8	0.37
Caucasian	407	91.7	287	91.7	120	91.6	0.0	0.98
Completed acute course	355	80.0	253	80.8	102	77.8	0.5	0.48
	Mean	SD	Mean	SD	Mean	SD	t (df=442)c	p
Age (years)	55.6	16.8	59.1	16.6	47.2	13.8	7.2	<0.001
Number of ECT sessions	7.3	3.4	7.2	3.4	7.5	3.2	−0.7	0.47
24-item Hamilton depression rating scale score	35.1	7.2	33.6	6.6	38.6	7.3	−7.1	<0.001

^aPatients with low levels of expressed suicidal intent had scores of 1 or 2, and patients with high levels had scores of 3 or 4 on item 3 of the 24-item Hamilton Depression Rating Scale.

^bComparing proportions (%) for lower versus higher expressed suicidal intent groups.

^cIndependent sample (pooled test) comparing means for lower versus higher expressed suicidal intent groups.