Table 2.

Development of MCIH in open group

Characteristics	Patients	Development of MCIH within 2 year	Development of MCIH total	Incidence of total MCIH (%)	P value
Gender
Male	146	11	11	7.5	0.028
Female	64	8	12	18.8
Initial side
Right	104	6	6	5.8	0.007
Left	89	13	17	19.1

MCIH, metachronous contralateral inguinal hernia.