| BMI | Body Mass Index |
| CI | Confidence Interval |
| CPAP | Continuous Positive Airway Pressure |
| DM | Diabetes Mellitus |
| HT | Hypertension |
| KCDC | Korea Centers for Disease Control and Prevention |
| KNHANES | Korea National Health and Nutrition Examination Survey |
| OR | Odds Ratio |
| OSA | Obstructive Sleep Apnea |