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 |