[Table/Fig-2]:

Overall recurrence Odds Ratio Courtesy Paolo Millo et al., [9]

Study	Odds Ratio	95% CI	Number of patients
Barcelona	0.55	0.29-1.06	219
Braga	0.8	0.42-1.54	268
CLASSIC	1.06	0.62-1.79	794
COLOR	1.2	0.88-1.63	1076
COST	0.86	0.62-1.20	863
Curet	1	0.06-17.33	73
Kaiser	2.28	0.22-23.68	48
Liang	0.74	0.40-1.37	269
Mirza	1.55	0.66-3.64	233