| Abbreviation | Meaning |
| ABCDEF | Assess, Prevent, and Manage Pain; Both Spontaneous Awakening Trials and Spontaneous Breathing Trials; Choice of Analgesia and Sedation; Delirium Assessment, Prevention, and Management; Early Mobility and Exercise; Family Engagement and Empowerment |
| CABG | Coronary Artery Bypass Grafting |
| CAM | Confusion Assessment Method |
| CAM-ICU | Confusion Assessment Method for the Intensive Care Unit |
| CG | Control Group |
| CI | Confidence Interval |
| DDS | Delirium Detection Score |
| DOSS | Delirium Observation Screening Scale |
| DSM-5 | Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition |
| EG | Experimental Group |
| ERAS | Enhanced Recovery After Surgery |
| HELP | Hospital Elder Life Program |
| ICDSC | Intensive Care Delirium Screening Checklist |
| ICU | Intensive Care Unit |
| MD | Mean Difference |
| Nu-DESC | Nursing Delirium Screening Scale |
| OPCABG | Off-Pump Coronary Artery Bypass Grafting |
| PICOS | Population, Intervention, Comparator, Outcomes, and Study Design |
| PRISMA | Preferred Reporting Items for Systematic Reviews and Meta-Analyses |
| PROSPERO | International Prospective Register of Systematic Reviews |
| RASS | Richmond Agitation-Sedation Scale |
| RCT | Randomized Controlled Trial |
| RoB 2 | Risk of Bias 2 |
| ROBVIS | Risk-of-Bias Visualization |
| RR | Risk Ratio |
| SCCM | Society of Critical Care Medicine |
| SMD | Standardized Mean Difference |
| TAES | Transcutaneous Acupoint Electrical Stimulation |
| 4AT | 4 A’s Test |