Case-control studies | Case definition | Selection of cases | Selection of controls | Definition of controls | Control for most important factor1 | Control for any additional factor2 | Ascertainment of exposure | Same method of ascertainment for cases and controls | Non-response rate | Total scores |
Mourouti et al., 2015 [70] | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 8 |
Castello et al., 2014 [67] | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 8 |
Tumas et al., 2014 [69] | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
Karimi et al., 2013 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 7 |
Bessaoud et al., 2012 [15] | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 7 |
Demetriou et al., 2012 [66] | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 8 |
Buck et al., 2011 [64] | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 5 |
Zhang et al., 2011 [65] | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 | |
Cho et al., 2011 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
Wu et al., 2009 [12] | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 9 |
De Stefani et al., 2009 [61] | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
Murtaugh et al., 2008 [11] | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 8 |
Edefonti et al., 2008 [60] | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
Hirose et al., 2007 [59] | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 6 |
Cui et al., 2007 [16] | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 8 |
Ronco et al., 2006 [58] | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 7 |
Nkondjock and Ghadirian, 2005 [57] | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 8 |
Cohort studies | Selection of exposed cohort | Selection of non-exposed cohort | Ascertainment of exposure | Outcome was not present as baseline | Control for most important factor1 | Control for any additional factor2 | Assessment of outcome | Adequate follow-up period for outcome | Adequacy of follow up of cohorts | Total scores |
Shin et al., 2016 [78] | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 7 |
Harris et al., 2016 [17] | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 7 |
Kojima et al., 2016 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 7 |
Catsburg (CSDLH), 2015 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 7 |
Catsburg (NBSS), 2015 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 7 |
Link et al., 2013 [13] | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 6 |
Baglietto et al., 2011 [77] | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 8 |
Cottet et al., 2009 [10] | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
Agurs-Collins et al., 2009 [76] | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
Velie et al., 2005 [75] | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
Adebamowo et al., 2005 [73] | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 7 |
Fung et al., 2005 [74] | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
Mannisto (NLCS), 2005 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 7 |
Mannisto (ORDET), 2005 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 6 |
Mannisto (SMC), 2005 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 7 |
Sieri et al., 2004 [72] | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 6 |
Terry et al., 2001 [71] | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |