Table 2 Quality assessment of studies included in review
Author; year | Selection bias | Study design | Confounders | Blinding | Data collection | Withdrawals | Global score |
|---|---|---|---|---|---|---|---|
Beenackers; 2012 | Weak | Moderate | Strong | Moderate | Weak | Weak | Weak |
Boarnet; 2005 | Weak | Moderate | Weak | Moderate | Moderate | N/A | Weak |
Brown; 2008 | Weak | Moderate | Strong | Moderate | Strong | Weak | Weak |
Clark; 2014 | Weak | Moderate | Weak | Moderate | Strong | N/A | Weak |
Cohen; 2012 | Weak | Moderate | Moderate | Moderate | Strong | N/A | Moderate |
Cohen; 2014 | Weak | Moderate | Weak | Moderate | Strong | N/A | Weak |
Cohen; 2015 | Weak | Moderate | Weak | Moderate | Strong | N/A | Weak |
D’Haese; 2015 | Moderate | Moderate | Strong | Weak | Strong | Moderate | Moderate |
Dill; 2014 | Weak | Moderate | Strong | Moderate | Strong | Moderate | Moderate |
Fitzhugh; 2010 | Weak | Moderate | Weak | Moderate | Weak | N/A | Weak |
Giles-Corti; 2013 | Weak | Moderate | Strong | Moderate | Weak | Moderate | Weak |
Goodman; 2014 | Weak | Moderate | Strong | Moderate | Strong | Weak | Weak |
Gustat; 2012 | Moderate | Moderate | Moderate | Moderate | Weak | N/A | Moderate |
Harduar-Morano; 2008 | Strong | Weak | Weak | Weak | Weak | N/A | Weak |
Knuiman; 2014 | Weak | Moderate | Strong | Moderate | Weak | Weak | Weak |
Lott; 1979 | Weak | Moderate | Weak | Moderate | Weak | N/A | Weak |
McDonald; 2013 | Moderate | Moderate | Strong | Moderate | Moderate | N/A | Strong |
Morrison; 2004 | Weak | Weak | Weak | Moderate | Weak | Moderate | Weak |
Parker; 2011 | Weak | Moderate | Weak | Moderate | Weak | N/A | Weak |
Parker; 2013 | Weak | Moderate | Weak | Moderate | Weak | N/A | Weak |
Quigg; 2011 | Weak | Moderate | Strong | Moderate | Strong | Strong | Moderate |
Ranchod; 2013 | Weak | Moderate | Moderate | Moderate | Strong | Strong | Moderate |
Roemmich; 2014 | Weak | Moderate | Weak | Moderate | Strong | N/A | Weak |
Shu; 2014 | Weak | Moderate | Weak | Moderate | Weak | N/A | Weak |
Tester; 2009 | Weak | Moderate | Weak | Moderate | Strong | N/A | Weak |
Veitch; 2012 | Weak | Moderate | Weak | Moderate | Strong | N/A | Weak |
West; 2011 | Weak | Moderate | Weak | Moderate | Weak | Weak | Weak |
West; 2015 | Weak | Moderate | Moderate | Moderate | Weak | Moderate | Weak |