. Author manuscript; available in PMC: 2016 Dec 1.

Published in final edited form as: J Am Coll Radiol. 2015 Sep 26;12(12 0 0):1427–1433. doi: 10.1016/j.jacr.2015.06.037

Table 1.

Patient demographics and admission status by year

	1993	2003	2012
Number of discharges
	4,624	5,780	5,880
Mean age, years (95% CI)
	53.0 (51.6 – 54.4)	55.3 (54.2 – 56.3)	55.5 (54.6 – 56.3)
Gender, percentage (95% CI)
Male	60 (57 – 63)	66 (64 – 69)	65 (62 – 68)
Female	39 (30 – 48)	34 (31 – 36)	35 (32 – 38)
Race, percentage (95% CI)
White	61 (52 – 70)	59 (52 – 67)	66 (63 – 70)
Non-white	39 (30 – 48)	41 (33 – 48)	34 (30 – 37)
Admission type, percentage (95% CI)
Elective	21 (16 – 26)	28 (21 – 34)	28 (24 – 31)
Non-Elective	79 (74 – 84)	72 (66 – 79)	72 (69 – 76)