First author and publication year | Country | 1. Was there an adequate description of study design? | 2. Was there an adequate description of eligibility criteria? | 3. Is the study population representative of the target population? | 4. Is there an adequate description of outcomes? | 5. Is there an adequate description of the study participants? | Overall assessment |
---|---|---|---|---|---|---|---|
Meikle 1999 [31] | Australia | Yes | Yes | Yes | No | No | Medium |
Lowry 1990 [41] | Canada (BC) | No | Unclear | Yes | No | No | Low |
Lowry 1971 [40] | Canada (BC) | No | Unclear | Unclear | No | No | Low |
Applegarth 2000 [30] | Canada (BC) | Yes | Yes | Yes | Yes | No | Medium |
Nelson 2003 [18] | Australia (W) | Yes | No | Yes | Yes | No | Medium |
Gomez 2012 [39] | Colombia (B&C) | Yes | No | Yes | Yes | No | Medium |
Malm 2008 [33] | Denmark | No | Unclear | Yes | Yes | No | Low |
Baehner 2005 [32] | Germany | Yes | Yes | Yes | No | No | Medium |
Poorthuis 1999 [37] | Netherlands | Yes | Unclear | Yes | Yes | No | Medium |
Moammar 2010 [34] | Saudi Arabia | Yes | Unclear | No | Yes | No | Low |
Lin 2009 [38] | Taiwan | Yes | Unclear | Yes | No | No | Low |
Al-Jasmi 2010 [25] | UAE | Yes | Unclear | Yes | Yes | No | Medium |
Nelson 1997 [17] | UK (NI) | Yes | Unclear | Yes | No | No | Low |