Patient details
| Placebo group | Synbiotic group | |
|---|---|---|
| IQR, interquartile range. | ||
| No of patients | 65 | 72 |
| Age (y) (median (IQR)) | 71 (66–80) | 71 (47–76) |
| Sex (M:F) | 42:23 | 38:34 |
| POSSUM score (median (IQR)) | 28 (25–32) | 30 (25–33) |
| Diagnosis | ||
| Gastrointestinal malignancy | 43 | 43 |
| Inflammatory bowel disease | 7 | 10 |
| Diverticular disease | 7 | 6 |
| Aortic aneurysm | 3 | 2 |
| Other | 5 | 11 |