TABLE 3. Correlation Matrix, Means, and SDs for Study Day 1^a (N = 119).

	constrict	smother	tight	work	hunger	effort	suffocate
smother	.682
tight	.789	.604
work	.722	.723	.612
hunger	.662	.697	.717	.630
effort	.700	.693	.650	.787	.696
suffocate	.645	.789	.579	.693	.646	.701
Mean	2.03	1.29	1.68	2.29	1.77	2.49	1.11
SD	2.88	2.91	2.73	3.16	3.14	3.24	2.77

^aStudy Day 1 = day of enrollment in study.

P < .001 for all correlation coefficients