Table 1.

Characteristics of admitted adults with incident episodes of bloodstream infection according to acquisition classification, Calgary, 2000-2007

	Hospital Acquired (HA-BSI)	Healthcare-Associated (HCA-BSI)	Community-Acquired (CA-BSI)	HA vs HCA P	HA vs CA P	HCA vs CA p
Age (IQR) years	68.0 (53.1-78.0)	70.8 (54.9-81.0)	61.2 (45.7-75.0)	< 0.001	< 0.001	< 0.001
Male (%)	1,282 (60%)	1,284 (52%)	1,654 (54%)	< 0.001	< 0.001	0.131
Poly-microbial	183 (9%)	206 (8%)	170 (6%)	0.710	< 0.001	< 0.001
Median Charlson (IQR) score	2 (1-4)	2 (0-4)	1 (0-2)	< 0.001	< 0.001	< 0.001
Charlson category				< 0.001	< 0.001	< 0.001
0	422 (20%)	633 (25%)	1,525 (49%)
1	327 (15%)	433 (17%)	687 (22%)
2	453 (21%)	535 (21%)	355 (12%)
≥ 3	928 (44%)	890 (36%)	520 (17%)
In-hospital all-cause crude mortality	639/2,132 (30%)	449/2,492 (18%)	335/3,088 (11%)	< 0.001	< 0.001	< 0.001