| HRT | Hormone replacement therapy |
| IBD | Inflammatory bowel disease |
| PGA | Physician global assessment |
| OD | Odds ratio |
| CL | Confidence level |
| OCP | Oral contraceptive pill |
| CD | Crohn’s disease |
| UC | Ulcerative colitis |
| NC | North Carolina |
| USA | United States of America |
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