. Author manuscript; available in PMC: 2009 Jul 29.

Published in final edited form as: Arch Intern Med. 2008 Oct 27;168(19):2104–2110. doi: 10.1001/archinte.168.19.2104

Table 3.

Changing trends in the occurrence of stroke after acute myocardial infarction (Worcester Heart Attack Study).

	Model 1^†	Model 2^‡
Study years	Odds Ratio (95% CI)	Odds Ratio (95% CI)
1986 / 1988^*	1.0	1.0
1990 / 1991	0.76 (0.30, 1.95)	0.83 (0.38, 1.81)
1993 / 1995	1.36 (0.62, 3.40)	1.48 (0.74, 2.97)
1997 / 1999	1.98 (1.02, 3.83)	2.34 (1.19, 4.59)
2001 / 2003	1.53 (0.78, 3.01)	1.87 (0.93, 3.78)
2005	1.01 (0.41, 2.47)	1.37 (0.54, 3.47)

Referent years

^†

Adjusted for age, sex, co-morbid conditions (history of angina, diabetes, hypertension, heart failure, atrial fibrillation) and AMI associated characteristics (AMI order and type).

^‡

Additional adjustments for development of hospital complications (atrial fibrillation, heart failure, cardiogenic shock), and receipt of in-hospital thrombolytic therapy and cardiac procedures (cardiac catheterization, percutaneous coronary intervention, coronary artery bypass graft surgery).