Table 1 Cutoff times defining redundant RCTs

From: Assessment of redundant randomized clinical trials among patients with ST segment elevation myocardial infarction

Therapy	Mainland China		United States
Therapy	Publication of CPGs	Cutoff times	Publication of CPGs	Cutoff times
Reperfusion	August 2010 [20]	August 2011	August 2004 [22]	August 2005
P2Y₁₂ receptor inhibitors	August 2010 [20]	August 2011	January 2008 [23]	January 2009
Statins	April 2007 [21]	April 2008	January 2008 [23]	January 2009
Anticoagulants	August 2010 [20]	August 2011	January 2008 [23]	January 2009

The cutoff times for defining redundant RCTs by the therapy and the country. The cutoff times are defined as when a therapy was established as routine therapy in CPGs for the first time and remained so in the following updates
CPG clinical practice guidelines, RCT randomized clinical trials

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