Madrid 1997.

Methods	Abstract Randomised trial. No information available regarding randomisation method.
Participants	120 patients.
Interventions	Laparoscopic versus open mesh inguinal herniorrhaphy. Laparoscopic group: (n=60) repair performed by the TEP technique. Open group: (n=60) repair performed by the Lichtenstein technique. General anaesthesia was administered to all patients.
Outcomes	Included data items: Operation time (minutes) Hospital stay (hours) Return to work (days) Hernia recurrence Other data items: Use of analgesia Hospital costs (data not reported)
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear