Dunker 2002.

Methods	RCT sample size calculation; randomisation preoperative; no conversions.
Participants	n = 30; Inclusion: colonic resection for inflammatory disease. Exclusion: blood transfusions.
Interventions	laparoscopic vs. conventional Conversions: none ileocecal resection for crohn's disease: 6 vs. 7, colectomy for colitis or FAP: 10 vs. 7
Outcomes	Main study criterium: inflammatory and immune response.
Notes	Laparoscopic technique: gas insufflation Conventional incision: not stated Analgetic drugs: not stated. Evans & Pollock: Design 28, Analysis 12, Presentation 12, Total 52.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear