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Table 2 The risk of bias table in this meta-analysis

From: Safety of outpatient anterior cervical discectomy and fusion: a systematic review and meta-analysis

  Adamson [16] Liu [18] McGirt [27] Silvers [21] Stieber [22] Trahan [24] Wohns [25]
Random sequence generation Not Low Low Low Low High Low
Allocation concealment Low Low Low Low Not Low High
Blinding of participants and personnel High High High High High High High
Blinding of outcome assessment Low High Low High Low Low Low
Incomplete outcome data Low Low Not Low Low Low Low
Selective reporting Low Low Low Low Low Not Low
Other bias Not Low Not Not Not Low Low