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J Am Coll Cardiol, 1999; 34:1689-1695
© 1999 by the American College of Cardiology Foundation
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Clinical practice guidelines in unstable angina improve clinical outcomes by assuring early intensive medical treatment

Elias A. Iliadis, MDa, Lloyd W. Klein, MD, FACP, FACCa, Betsy J. Vandenberg, MSa, Diana Spokas, RNa, Tony Hursey, MPHa, Joseph E. Parrillo, MD, FACC, FACPa and James E. Calvin, MD, FACC, FRCPCa

a Section of Cardiology, Rush Presbyterian–St. Luke’s Medical Center, Chicago, Illinois, USA



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Figure 1 Frequency of the use of oral beta-blocker (A), coronary angiogram (B), aspirin (ASA), (C) and IV heparin (D) as a function of the hospital day on which they were started or performed. Day 0 = admission day.

 


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Figure 2 The use of beta-blockers over the study periods of both groups 1 (control) and 2 (guideline reminders). The bold vertical line indicates the beginning of the test period. The upper horizontal line inside the box represents the median value, and the lower horizontal line the mean value. The bottom of each box plot represents the 25th and 75th percentiles. The whiskers at the end of the horizontal lines represent the 95th percentiles. Solid circles = before guideline reminders were instituted; open circles = after guideline reminders were instituted; rectangular boxes = box plots before and after guideline reminders were instituted.

 


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Figure 3 The use of aspirin (ASA) over the study periods of both groups 1 (control) and 2 (guideline reminders). See Figure 2 for explanation of symbols.

 




 
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