Table 1.

Definitions of Regularity of Testing and Control Categories for Matching, Process Measures, and Outcomes

Category	Definition	Reference
Matching
Previous regularity of HbA1c or LDL testing*		AACE (2000), Goldstein et al. (2004)
Regular	Patient was tested yearly for previous 2 years
Irregular	Patient was tested once in previous 2 years
No testing	Not tested in previous 2 years
Previous HbA1c or LDL control†		AACE (2000), Haffner (2004)
Controlled	One or more test and
	Mean HbA1c≤7.2
	Mean LDL≤100
Uncontrolled	One or more test and
	Mean HbA1c>7.2
	Mean LDL>100
Unknown	Not testing or unknown regularity
Process measures
Timeliness of testing	Test ordered and …	Goldstein et al. (2004), Haffner (2004)
HbA1c	≤6 months since last test
LDL	<1 year since last test
Tested if overdue	Test ordered and …	Goldstein et al. (2004), Haffner (2004)
HbA1c	≥7 months since last test
LDL	≥13 months since last test
In control	Most recent test result	Goldstein et al. (2004), Haffner (2004)
HbA1c	<7.0
LDL	<100
Outcome measures
HbA1c and LDL	Last level and adjusted change in level

^*Definitions are for those diagnosed 2 or more years prior to trigger date. If diagnosis was between 1 and 2 years from trigger date, testing was regular if conducted last year. If the patient was diagnosed within last year, testing regularity was unknown.

^†Control was unknown if no testing was conducted or diagnosis was made within 1 year.

HbA1c, glycosylated hemoglobin; LDL, low-density lipoprotein.