Table 1.

Characteristics of Cortisol Eligible Subjects at Study Entry (n = 65)

Variable	+PDM (n =19) Mean (SD)	#HPs (n = 27) Mean (SD)	Usual Care (n =19) Mean (SD)	Total sample Mean (SD)	p-value
Age	56.6(18.6)	54.3(15.3)	60.4(17.3)	56.8 (16.9) Range 25-93	.48
^APACHE III	58.2(15.8) Range 27-82	57.3(20.6) Range 15-96	55.7(17.6) Range 26-95	57.2 (18.3) Range 15-96	.92
	N(%)	N(%)	N(%)	N(%)
Male Gender	11(58%)	15(56%)	13(68%)	39(61%)	.66
Extubated at end of study	10(53%)	6(22%)	9(47%)	25(39%)	.07
	Median(range)	Median(range)	Median(range)	Median(range)
ICU days prior to study entry	5.9(.35-41)	16.3(.22-55)	4.8(1.6-20.4)	7.9(.22-55)	.30
Ventilator days prior to study entry	3.5(.35-35.5)	12.5(.27-55)	7.0(1.2-16.7)	6(1-55)	.60
Total Days Enrolled in Study	2.8(1-19)	4.3(1-30)	5.0(1-30)	4.2(1-30)	.62
Baseline Urinary Free Cortisol (mg/day)	29.3(1-181.4)	54.0(8.8-241)	33.0(5.9-264.8)	45.5(1-264.8)	.08
Total Study Days with Urine samples	19	30	30

Note: +PDM = patient-directed music; #HPs = headphones; ^APACHE = acute physiology, age, and chronic health evaluation