Table 2. Total Number of Patients in Observed Practices Diagnosed with Both New and Current Disease, Correlating to Time Periods and Number (%) Taking Aspirin

Aspirin Use by Disease	January-December 2007		January-December 2008		January 2009 to May 2010		June 2010 to May 2011
Aspirin Use by Disease	New Diagnosis	Current Disease	New Diagnosis	Current Disease	New Diagnosis	Current Disease	New Diagnosis	Current Disease
Cardiovascular disease
Total, n	2,890	12,666	2,906	15,572	4,692	20,264	2,256	22,520
Patients taking aspirin, n (%)	1,159 (40.1)	4,840 (38.2)	1,159 (39.9)	5,999 (38.5)	1,944 (41.4)	7,943 (39.2)	938 (41.6)	8,881 (39.4)
Diabetes
Total, n	2,904	11,343	2,509	13,852	4,722	18,574	2,355	20,929
Patients taking aspirin, n (%)	822 (28.3)	2,988 (26.3)	712 (28.4)	3,700 (26.7)	1,570 (33.2)	5,270 (28.4)	838 (35.6)	6,108 (29.2)
Chronic kidney disease
Total, n	414	1,096	464	1,560	864	2,424	485	2,909
Patients taking aspirin, n (%)	151 (36.5)	380 (34.7)	168 (36.2)	548 (35.1)	326 (37.7)	874 (36.1)	192 (39.6)	1,066 (36.6)
Peripheral vascular disease
Total, n	491	1,494	631	2,125	983	3,108	385	3,493
Patients taking aspirin, n (%)	174 (35.4)	521 (34.9)	230 (36.5)	751 (35.3)	365 (37.1)	1,116 (35.9)	156 (40.5)	1,272 (36.4)
Hyperlipidemia
Total, n	11,773	42,041	11,863	53,904	20,439	74,343	10,075	84,418
Patients taking aspirin, n (%)	1,998 (17.0)	6,976 (16.6)	1,816 (15.3)	8,792 (16.3)	4,121 (20.2)	12,913 (17.4)	2,472 (24.5)	15,385 (18.2)
Hypertension
Total, n	8536	35,732	8,175	43,907	14,409	58,316	7,066	65,382
Patients taking aspirin, n (%)	1689 (19.8)	6,321 (17.7)	1,500 (18.3)	7,821 (17.8)	3,366 (23.4)	11,187 (19.2)	2,020 (28.6)	13,207 (20.2)