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Table 3 Methodological quality of included studies

From: Posterior pericardiotomy to prevent new-onset atrial fibrillation after coronary artery bypass grafting: a systematic review and meta-analysis of 10 randomized controlled trials

Study ID Random sequence generation (selection bias) Allocation concealment (selection bias) Blinding of participants and personnel (performance bias)
Kaya [34] Random number table Described blinding All patients provided informed consent and were treated blindly
Kaygin [33] Described randomization Described blinding All patients provided informed consent and were treated blindly
Fawzy [35] Described randomization Not described All patients provided informed consent
Zhao [29] Random number table Opaque envelope All patients provided informed consent
Kuralay [18] Random number table Not described All patients provided informed consent
Asimakopoulos [32] Described randomization Not described Not described
Ekim [20] Described randomization Not described All patients provided informed consent
Farsak [19] Random number table Not described All patients provided informed consent
Kongmalai [22] Described randomization Opaque envelope Patients provided informed written consent individually
Arbatli [21] Described randomization Not described Not described
Blinding of outcome assessment (detection bias) Incomplete outcome data (attrition bias) Selective reporting (reporting bias) Other bias
Described blinding Complete No No
Described blinding Complete No No
Not described Complete No No
Not described Complete No No
Not described Complete No No
Not described Complete No No
Not described Complete No No
Not described Complete No No
Researchers analyzed data blinded Complete No No
Not described Complete No No