Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Further recurrence
Systematic review	199 people 6 RCTs in this analysis	Further recurrence with TAPP laparoscopic repair with open mesh repair	RR 1.32 95% CI 0.53 to 3.31 See further information on studies for discussion of clinical relevance of results		Not significant
RCT 3-armed trial	82 men with recurrent inguinal hernia	Rates of recurrence within 3 years 2/24 (8%) with TAPP laparoscopic repair 5/32 (16%) with open mesh repair	Significance not assessed
RCT	147 patients with recurrent inguinal hernia	Cumulative recurrence rates at 5 years 12/73 (19%) with TAPP laparoscopic repair 12/74 (18%) with open mesh repair	Reported as not significant P value not reported		Not significant