eTable 5. Failure of conservative treatment and recurrence risk in patients with acute complicated diverticulitis without free perforation.
| Author | Country | Study type | n | Primary failure of conservative treatment & resection | Recurrence in follow-up of non-resected patientss | Period | Cumulative resection rate |
| Buchwald (e34) |
New Zealand | Retrospective, single-center | 107 | Not specified | 28% | Median 4 months |
4% |
| Devarai (e16) |
USA | Retrospective, single-center | 210 | 12% | 61% | Median 3.5 months |
43% |
| Garfinkle (e39) |
Canada | Retrospective, single-center | 135 | 23% | 39% | 2 years | 51% |
| Gaertner (e38) |
USA | Retrospective, single-center | 218 | 10% | 42% | 7 years | 73% |
| Gregersen (12, 15) |
Denmark | National registry | 3 148 | 6% | 14% | max. 12 years |
16% |
| Jalouta (e17) |
USA | Retrospective, 2 hospitals | 165 | 28% | 10% | 1 year | 64% |
| Lamb (e69) |
Meta-analysis | 22 studies 1051 patients | 30% | 28% | 12–90 months |
66% | |
| Lambrichts (e14) |
Netherlands | Retrospectivemulticenter | 447 | 9% | 27% | max. 12 years |
36% |
| You (16) |
USA | Single-center RCT | 81 (arm 2) |
11% | 32% | 36 months | 14% |
RCT, randomized controlled trials