Table 3a. State-specific Standardized Infection Ratios (SIRs) and facility-specific percentiles, NHSN facilities reporting during 2010: Central Line–associated Bloodstream Infections (CLABSI), All Locations ¹

The Central Line–associated Blood Stream Infections (CLABSI) Score is reported using a Standardized Infection Ratio (SIR). This calculation compares the number of central line infections in a hospital’s intensive care unit to a national benchmark based on data reported to NHSN from 2006 – 2008. The result is adjusted based on certain factors such as the type and size of a hospital or ICU.

A score of less than 1 means that the hospital had fewer CLABSIs than hospitals of similar type and size.
A score of 1 means the hospital's CLABSI score was no different than hospitals of similar type and size.
A score of more than 1 means the hospital had more CLABSIs than hospitals of similar type and size.

Lower numbers are better. A score of zero (0) – meaning no CLABSIs – is best.

State	No. of Facilities Reporting	No. of Infections		SIR	95% CI for SIR		Facility–specific SIRs at Key Percentiles²
State	No. of Facilities Reporting	Observed	Predicted	SIR	Lower	Upper	10%	25%	Median (50%)	75%	90%
Alabama	69	280	254.957	1.098	0.973	1.235	0.000	0.081	0.754	1.348	2.119
Alaska	1-4	.	.	.	.	.	.	.	.	.	.
Arizona	24	168	195.617	0.859	0.734	0.999	0.267	0.426	0.883	1.471	1.911
Arkansas	22	91	159.006	0.572	0.461	0.703	.	.	.	.	.
California	365	2910	4,516.662	0.644	0.621	0.668	0.000	0.191	0.495	0.809	1.328
Colorado	60	204	308.068	0.662	0.574	0.760	0.000	0.224	0.601	1.047	1.445
Connecticut	30	100	146.003	0.685	0.557	0.833	0.000	0.370	0.619	1.083	1.347
Delaware	8	78	86.346	0.903	0.714	1.127	.	.	.	.	.
Dist. of Columbia	11	75	109.505	0.685	0.539	0.859	.	.	.	.	.
Florida	51	278	368.542	0.754	0.668	0.848	0.000	0.098	0.685	0.963	1.347
Georgia	36	274	339.935	0.806	0.713	0.907	0.000	0.335	0.682	1.044	1.953
Hawaii	6	15	16.149	0.929	0.519	1.532	.	.	.	.	.
Idaho	1-4	.	.	.	.	.	.	.	.	.	.
Illinois	147	689	1,016.152	0.678	0.628	0.731	0.000	0.159	0.564	0.920	1.450
Indiana	34	185	177.977	1.039	0.895	1.201	.	.	.	.	.
Iowa	25	15	34.871	0.430	0.241	0.710	.	.	.	.	.
Kansas	15	71	123.820	0.573	0.448	0.723	.	.	.	.	.
Kentucky	21	97	147.884	0.656	0.532	0.800	.	.	.	.	.
Louisiana	31	87	109.111	0.797	0.639	0.984	.	.	.	.	.
Maine	7	55	60.608	0.907	0.684	1.181	.	.	.	.	.
Maryland	47	370	404.467	0.915	0.824	1.013	0.106	0.395	0.737	1.315	1.854
Massachusetts	70	284	490.744	0.579	0.513	0.650	0.000	0.000	0.575	0.888	1.700
Michigan	51	183	444.985	0.411	0.354	0.475	0.000	0.074	0.379	0.547	0.736
Minnesota	1-4	.	.	.	.	.	.	.	.	.	.
Mississippi	16	167	213.919	0.781	0.667	0.908	.	.	.	.	.
Missouri	13	114	151.582	0.752	0.620	0.903	.	.	.	.	.
Montana	10	18	38.308	0.470	0.278	0.743	.	.	.	.	.
Nebraska	10	124	142.636	0.869	0.723	1.037	.	.	.	.	.
Nevada	23	110	143.003	0.769	0.632	0.927	.	.	.	.	.
New Hampshire	24	28	50.266	0.557	0.370	0.805	.	.	.	.	.
New Jersey	72	439	554.943	0.791	0.719	0.869	0.000	0.351	0.737	1.292	1.690
New Mexico	18	42	98.423	0.427	0.308	0.577	.	.	.	.	.
New York	180	1,390	1,619.639	0.858	0.814	0.905	0.000	0.434	0.814	1.165	1.882
North Carolina	39	275	387.516	0.710	0.628	0.799	.	.	.	.	.
North Dakota	1-4	.	.	.	.	.	.	.	.	.	.
Ohio	32	219	374.245	0.585	0.510	0.668	0.000	0.282	0.437	0.828	1.189
Oklahoma	51	163	301.139	0.541	0.461	0.631	0.000	0.000	0.437	0.748	0.842
Oregon	48	77	156.665	0.491	0.388	0.614	0.000	0.000	0.457	0.720	0.836
Pennsylvania	224	1559	2,938.275	0.531	0.505	0.558	0.000	0.230	0.483	0.770	1.158
Puerto Rico	0	.	.	.	.	.	.	.	.	.	.
Rhode Island	1-4	.	.	.	.	.	.	.	.	.	.
South Carolina	73	685	796.960	0.860	0.796	0.926	0.000	0.320	0.749	1.123	1.525
South Dakota	1-4	.	.	.	.	.	.	.	.	.	.
Tennessee	91	772	868.024	0.889	0.828	0.954	0.211	0.383	0.676	1.115	1.662
Texas	82	265	414.920	0.639	0.564	0.720	0.000	0.000	0.332	0.879	1.499
Utah	1-4	.	.	.	.	.	.	.	.	.	.
Vermont	8	17	21.751	0.782	0.455	1.251	.	.	.	.	.
Virginia	81	372	553.155	0.673	0.606	0.744	0.000	0.000	0.430	0.829	1.496
Washington	65	185	381.068	0.485	0.418	0.561	0.000	0.034	0.420	0.685	1.174
West Virginia	38	79	163.487	0.483	0.383	0.602	0.000	0.000	0.434	0.648	1.513
Wisconsin	42	160	226.956	0.705	0.600	0.823	0.000	0.393	0.658	0.887	1.484
Wyoming	0	.	.	.	.	.	.	.	.	.	.
US All	2,389	13,812	20,184.815	0.684	0.673	0.696	0.000	0.232	0.564	0.961	1.525

Footnotes for Table 3a:

Data from all ICUs, wards. For this table, wards also include stepdown, specialty care areas (including hematology/oncology, bone marrow transplant,) and LTAC locations (or facilities), and NICUs.
To improve estimating SIR distributions, facility–specific key percentiles were only calculated for states in which ≥20 facilities had a predicted number of CLABSIs ≥1.0 during the reporting period. If a single facility’s predicted number of CLABSIs was <1.0, a facility-specific SIR was neither calculated nor included in the determinations of the distribution of facility-specific SIRs.

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