Table 1.

Comparison of general data

Item	Open surgery group (n=9)	Laparoscopic surgery group (n=3)	χ2/t	P
Gender (male/female)	7:2	2:1	0.148	0.700
Age (year)	47.8±28.6	50.1±32.3	0.117	0.909
Stricture location (left/right)	7:2	2:1	0.148	0.700
Stricture length (cm)	4.3±1.5	4.7±1.7	0.389	0.705
Mean duration of disease (month)	38.98±8.98	39.21±9.21	0.038	0.970