Table 4.
Multivariable Cox regression analysis of risk factors for recurrence and surgery during long‐term follow‐up
| Hazard ratio | P | |
|---|---|---|
| Recurrence | ||
| Age (per year) | 0·995 (0·98, 1·01) | 0·481 |
| History of diverticulitis | 1·71 (1·17, 2·48) | 0·005 |
| History of abdominal surgery | 0·63 (0·42, 0·98) | 0·040 |
| Rebound tenderness | 0·72 (0·46, 1·13) | 0·152 |
| Sigmoid resection during short‐term follow‐up | 0·15 (0·05, 0·48) | 0·001 |
| Surgery | ||
| Age (per year) | 1·02 (1·001, 1·03) | 0·042 |
| Alcohol consumption | 0·64 (0·29, 1·39) | 0·218 |
| Co‐morbidity | 1·49 (0·96, 2·31) | 0·078 |
| History of diverticulitis | 1·30 (0·88, 1·93) | 0·190 |
| Duration of symptoms (per day) | 1·01 (0·996, 1·03) | 0·136 |
| Nausea | 1·72 (1·03, 2·85) | 0·037 |
| Vomiting | 1·82 (1·13, 2·93) | 0·014 |
| Diffuse abdominal pain | 0·60 (0·29, 1·25) | 0·161 |
| Distant abscess | 0·72 (0·42, 1·23) | 0·221 |
| Free peridiverticular air | 1·39 (0·91, 2·12) | 0·129 |
| Percutaneous drainage | 1·08 (0·69, 1·69) | 0·736 |
Values in parentheses are 95 per cent confidence intervals.