Table 1.

Patient Demographics

	Comparison Group		Study Group
	Pre (n = 154)	Post (n = 119)	Pre (n = 365)	Post(n = 368)
Mean age, y	57.0	59.5	54.9	57.4
Male, %	53.9	47.9*	58.4	57.6
White, %	59.1	59.7	57.3	57.1
Diagnosis, %
Malignancy	5.4	7.0	14.5	15.5
Ortho	44.1†	35.2	6.4	10.1
HIV	6.5	4.2	28.5*	16.8*
Other	44.1†	53.5	50.6	57.6

^*Significantly different when comparing the study group with the comparison group within the same pre or post period, P < .05 (χ² statistic).

^†Significantly different within the same study or comparison group when comparing the pre with the post period, P < .05 (Fisher's exact test).