Author, year | Selection bias | Study design | Confounders | Blinding | Data collection methods | Withdrawals and dropouts | Global rating |
---|---|---|---|---|---|---|---|
Angerer et al., 2015 [36] | weak | moderate | weak | weak | weak | moderate | weak |
Braun et al., 2014 [37] | weak | moderate | weak | weak | weak | moderate | weak |
Chen et al., 2001 [38] | strong | moderate | weak | weak | moderate | strong | weak |
Hankonen et al., 2017 [39] | moderate | strong | strong | moderate | moderate | weak | moderate |
Lee et al., 2011 [40] | moderate | strong | strong | moderate | strong | strong | strong |
Sickinger et al., 2018 [41] | moderate | moderate | weak | weak | weak | weak | weak |
Spook et al., 2016 [42] | moderate | strong | strong | weak | moderate | weak | weak |
Verloigne et al., 2017 [43] | moderate | moderate | weak | weak | strong | weak | weak |
Walter et al., 2013 [44] | moderate | strong | strong | weak | strong | strong | moderate |