Table 3. Comparison between BMI of sleeve gastrectomy and Roux-en-Y gastric bypass groups.

*Significance P value < 0.05; **high significance P value < 0.01

Items	Sleeve gastrectomy (n=50)	Roux-en-Y gastric bypass (n=50)	p-value
	BMI after 1 year	29.70	28.64	0.04*
	BMI after 4 years	30.67	30.32	0.001**
Difference 1vs 4 years	0.97	1.68	0.001**
Difference baseline vs 4 years	13.23	12.41	0.226