Telephone triage (n= 11) | | | | |
Bunn et al2 | 2004 | Various | Meta-analysis/systematic review | 2++ |
Dunt et al13 | 2005 | Australia | Before–after/interrupted time series | 3 |
Graber et al14 | 2003 | New Zealand | Cross-sectional study | 3 |
Lattimer et al15 | 2005 | UK | Before–after /interrupted time series | 3 |
Munro et al16 | 2001 | UK | Non-comparative (case series/study) | 3 |
Munro et al17 | 2005 | UK | Before–after /interrupted time series | 3 |
Shekelle and Roland 18 | 1999 | Various | Non-comparative (case series/study) | 3 |
Stacey et al19 | 2003 | Various | Meta-analysis/systematic review | 2++ |
Stewart et al20 | 2006 | UK | Cohort study | 2+ |
South Wiltshire Out of Hours Project21 | 1997 | UK | Non-comparative (case series/study) | 3 |
Vedsted and Olesen22 | 1999 | Denmark | Before–after /interrupted time series | 3 |
Walk in clinics (n= 2) | | | | |
Chalder et al24 | 2003 | UK | Cross-sectional study | 3 |
Salisbury et al25 | 2007 | UK | Before–after /interrupted time series | 3 |
|
Community health centres (n= 2) | | | | |
Choudhry et al29 | 2006 | US | Non-comparative (case series/study) | 3 |
Rust et al30 | 2009 | US | Cross sectional study | 3 |
|
GP out of hours/GP cooperatives (n= 11) | | | | |
Bury et al31 | 2006 | Ireland | Cross-sectional study | 3 |
Moll van Charante et al32 | 2007 | The Netherlands | Cross-sectional study | 3 |
O’Keeffe et al33 | 2008 | Ireland | Before–after /interrupted time series | 3 |
O’Kelly et al34 | 2001 | Ireland | Before–after /interrupted time series | 3 |
Pickin et al36 | 2004 | UK | Before–after /interrupted time series | 3 |
Philips et al35 | 2010 | Belgium | Non-randomised controlled trial | 1– |
Salisbury et al25 | 1997 | UK | Cross-sectional study | 3 |
Van Uden and Crebolder38 | 2004 | The Netherlands | Before–after /interrupted time series | 3 |
van Uden et al39 | 2005 | The Netherlands | Before–after /interrupted time series | 3 |
van Uden et al37 | 2006 | The Netherlands | Cross-sectional study | 3 |
Vedsted and Christensen40 | 2001 | Denmark | Before–after /interrupted time series | 3 |
Emergency nurse practitioner (n= 1) | | | | |
|
Codde et al41 | 2010 | Australia | Before–after /interrupted time series | 3 |
Various (n= 7) | | | | |
|
Arendts et al42 | 2010 | Australia | Non-comparative (case series/study) | 3 |
Bickerton et al28 | 2011 | UK | Before–after /interrupted time series | 3 |
Coleman et al27 | 2001 | UK | Non-comparative (case series/study) | 3 |
Cooke et al4 | 2004 | Various | Meta-analysis/systematic review | 2++ |
Health Services Utilization and Research Committee2 | 1997 | Canada | Meta-analysis/systematic review | 2++ |
Liebowitz et al23 | 2003 | Various | Meta-analysis/systematic review | 2++ |
Murphy7 | 1998 | Various | Meta-analysis/systematic review | 2++ |