Table 1.

Patient characteristics.

Variable
Number of patients	236
female %	87
Age at operation (years)	37.9 ± 10.0*
Weight (kg)	119.5 ± 19.4*
BMI kg/m2	45.0 ± 6.8*
Liver biopsy
NASH	87
normal liver histology	35
mean degree of steatosis	33.6 ± 24.7*
HbA1c > 6.5%	23

*mean ± standard deviation.