[Table, Empirical Evaluation Results Tables]. - Refinement of the HCUP Quality Indicators

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Indicator 2: Carotid endarterectomy volume
Type: Volume
Definition: Provider level. Number of Carotid Endarterectomy Procedures Threshold 1: 50/yr, Threshold 2: 101/yr
Procedure volume:		Number of procedures performed per year
Procedure volume:	# Hosp with >=1 procedures/yr	Mean	Standard deviation	50^th percentile	90^th percentile	95^th percentile
1995	893	52	60	32	127	158
1996	904	52	60	31.5	129	169
1997	884	54	64	32	133	175

Refinement of the HCUP Quality Indicators.

Technical Reviews, No. 4.

Davies SM, Geppert J, McClellan M, et al.

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