Skip to main content
. Author manuscript; available in PMC: 2006 Jun 11.
Published in final edited form as: J Am Coll Cardiol. 2005 Dec 13;47(1):45–51. doi: 10.1016/j.jacc.2005.04.071

Figure 2:

Figure 2:

Calendar Time Trend - The geometric mean door-to-needle times for 68,439 patients (white squares) and geometric mean door-to-balloon times for 33,647 patients (black diamonds) for each month from January 1999 to December 2002. There was no significant trend for either door-to-needle times (p=0.956) or door-to-balloon times (p=0.094).