| Study characteristics |
| Methods |
Randomized, controlled |
| Participants |
On‐pump CABG using a saphenous vein graft only |
| Interventions |
Propranolol vs. Control |
| Outcomes |
AF or atrial flutter; Mortality |
| Follow‐Up |
6 days |
| Concurrent Antiarrhythmic Medications |
None |
| Notes |
|
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Random sequence generation (selection bias) |
High risk |
Randomization based on last digit of hospital clinical record |
| Allocation concealment (selection bias) |
Unclear risk |
Insufficient information |
| Blinding of participants and personnel (performance bias)
All outcomes |
High risk |
No information of attempts to blind control group |
| Blinding of outcome assessment (detection bias)
All outcomes |
Unclear risk |
Insufficient information |
| Incomplete outcome data (attrition bias)
All outcomes |
High risk |
Withdrawn patients from treatment arm with high rate of clinical events |
| Selective reporting (reporting bias) |
Low risk |
|
| Intention‐to‐treat analysis |
Unclear risk |
Not reported |
