3. Characteristics of the included interventions: format.
| Study (PEM) | Format* | Appearance§ | Length¥ |
| Austin 2003 (HERS trial report) | 1 | 1 | 1 |
| Austin 2004‐A (WHI trial report) | 1 | 1 | 1 |
| Austin 2004‐B (ALLHAT trial report) | 1 | 1 | 1 |
| Austin 2005 | 1 | 1 | 1 |
| Avorn 1983 | 2 | 3 | 3 |
| Azocar 2003 | 2 | 3 | 2 |
| Barbaglia 2009 (WHI trial report) | 1 | 1 | 1 |
| Bearcroft 1994 | 3 | 3 | 3 |
| Beaulieu 2004 | 2 | 3 | 2 |
| Bjornson 1990 | 1 | 1 | 1 |
| Black 2002 (EHC‐OM bulletin) | 4 | 1 | 1 |
| Buyle 2010 | 4 | 3 | 3 |
| Coopersmith 2002 | 6 | 3 | 1 |
| Denig 1990 | 4 | 1 | 3 |
| Dormuth 2004 | 4 | 2 | 1 |
| Fijn 2000 | 3 | 3 | 3 |
| Fonarow 2009 (MIRACL trial report) | 1 | 1 | 1 |
| Fonarow 2009 (PROVE‐IT TIMI 22 trial report) | 1 | 1 | 1 |
| Fonarow 2009 (ACC‐AHA‐STEMI guidelines) | 3 | 1 | 1 |
| Fonarow 2009 (AHA‐AHA‐NS guidelines) | 3 | 1 | 1 |
| Fukuda 2009 | 3 | 3 | 3 |
| Guay 2007 (WHI publication) | 1 | 1 | 1 |
| Haas 2004 (HERS publication) | 1 | 1 | 1 |
| Haas 2004 (WHI publication) | 1 | 1 | 1 |
| Hersh 2004 (WHI; HERS; HERSIII publications) | 1 | 1 | 1 |
| Jackevicius 2001 | 1 | 1 | 1 |
| Jameson 2010 | 3 | 3 | 3 |
| Jousimaa 2002 | 3 | 3 | 1 |
| Juurlink 2004 | 1 | 1 | 1 |
| Kabir 2007 (LIFE publication) | 1 | 1 | 1 |
| Kabir 2007 (ALLHAT publication) | 1 | 1 | 1 |
| Kabir 2007 (VALUE trial report) | 1 | 1 | 1 |
| Kajita 2012 | 3 | 3 | 3 |
| Kottke 1989 | 5 | 3 | 1 |
| Lam 2009 | 1 | 1 | 1 |
| Majumdar 2003 (HOPE trial report) | 1 | 1 | 1 |
| Majumdar 2003 (RALES trial report) | 1 | 1 | 1 |
| Majumdar 2004 (WHI trial report) | 1 | 1 | 1 |
| Mason 1998 | 4 | 1 | 1 |
| Mason 2001 (EHC‐OM bulletin) | 4 | 1 | 1 |
| Matowe 2002 | 3 | 3 | 3 |
| Meyer 2007 | 3 | 3 | 3 |
| Oakeshott 1994 | 3 | 3 | 2 |
| Perria 2007 | 3 | 3 | 3 |
| Roberts 2007 | 3 | 1 | 1 |
| Santerre 1996 | 3 | 3 | 3 |
| Shah 2008 | 1 | 1 | 1 |
| Stafford 2004 (ALLHAT trial report) | 1 | 1 | 1 |
| Tsuji 2009 | 6 | 3 | 3 |
| Wang 2005 (ADA guidelines; ATP III trial report) | 1 | 1 | 1 |
| Watson 2001 | 3 | 3 | 3 |
| Weiss 2011 | 3 | 2 | 1 |
* Format: 1 = publication of RCT in peer‐reviewed journal; 2 = quick reference of clinical guidelines; 3 = full clinical guidelines; 4 = newsletter/bulletin; 5 = manual of peer‐reviewed clinical article reprints; 6 = other.
§ Appearance: 1 = black and white, with a few figures/tables; 2 = enhanced communication format (colour, picture, or figure); 3 = unclear.
¥ Length: 1 = more than two pages; 2 = two pages or less; 3 = unclear.