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Table 3 Risk of bias of included studies

From: Perioperative systemic steroid for rapid recovery in total knee and hip arthroplasty: a systematic review and meta-analysis of randomized trials

Author (year) 1 2 3 4 5 6 7
Koh et al. (2013) [12] + + + + + ? ?
Fujii et al. (2005) [13] + + + ? ? ? ?
Jules-Elysee et al. (2011) [14] + + + + ? + ?
McLawhorn et al. (2014) [15] + + + ? + ? ?
Jules-Elysee et al. (2012) [16] + + + + ? + ?
Bergeron et al. (2009) [17] + ? + + - + -
Lunn et al. (2011) [20] + + + + + + ?
Backes et al. (2013) [21] + + + + + ? ?
Sculco et al. (2015) [22] + + + + + + ?
Lunn et al. (2013) [23] + + + + + + ?
Kardash et al. (2007) [24] + ? + + + + ?
  1. 1: sequence generation; 2: allocation concealment; 3: blinding of participants, 4: blinding of outcome assessor; 5: incomplete outcome data; 6: reporting bias, 7: other bias, +: low risk of bias; -: high risk of bias, ?: unclear risk of bias