| ATC | Anatomic Therapeutic Chemical Codes |
| BEACH | Bettering the Evaluation of Care of Health study |
| COPD | Chronic Obstructive Pulmonary Disease |
| CVS | Cardiovascular System |
| GORD | Gastro Oesophageal Reflux Disease |
| HIV | Human Immunodeficiency Disease |
| IBD | Intestinal Inflammatory Bowel Disease |
| MPE | Mean Percentage Error |
| NHS | National Health Survey |
| PBS | Pharmaceutical Benefits Scheme |
| PE | Percentage Error |
| SPSS | Statistical Package for the Social Sciences |
| WHO | World Health Organization |