76 Chapter 2 Supplemental Table 4. QUIPS Risk of bias domain scoring Author (year) Study participation Study attrition Bostrom et al. (2003) 37 ● ● Daniel et al. (2016) 12 ● ● Domenech et al. (2014) 38 ● ● Drigan et al. (1992) 48 ● ● Eipel et al. (2016) 39 ● ● Eipel et al. (2013) 40 ● ● Eiser et al. (2006) 51 ● ● Felder-Puig et al. (2007) 4 ● ● Harris et al. (1986) 41 ● ● Hinds et al. (2007) 13 ● ● Hough et al. (2016) 42 ● ● Igarashi et al. (2005) 43 ● ● Kaymak et al. (2017) 44 ● ● Marino et al. (2009) 45 ● ● Messina et al. (1989) 49 ● ● Mitchell et al. (2005) 46 ● ● Mrakotsky et al. (2011) 25 ● ● Pound et al. (2012) 52 ● ● Rogers et al. (2014) 54 ● ● Sanford et al. (2008) 55 ● ● Vallance et al. (2010) 56 ● ● Warris et al. (2016) 9 ● ● Warris, et al. (2016) 53 ● ● Yetgin et al. (2003) 47 ● ● Black= high risk of bias. Grey= moderate risk of bias. White= low risk of bias.
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