Table 2.

The association between Helicobacter pylori and body mass index in the study

Group	Change in BMI		Crude		Adjusted
	Value	P value	RR (95%CI)	P value	RR (95%CI)	P value
Model 1 in all the subjects
H. pylori (+)	-0.118	< 0.001	0.963 (0.901-1.029)	0.264	0.988 (0.924-1.057)	0.729
H. pylori (-)	-0.080	< 0.001	1.000		1.000
Model 2 in the subjects with obesity
H. pylori (+)	-0.431	< 0.001	1.020 (0.791-1.317)	0.876	1.038 (0.794-1.357)	0.786
H. pylori (-)	-0.411	< 0.001	1.000		1.000
Model 3 in the subjects with overweight
H. pylori (+)	-0.136	< 0.001	0.942 (0.852-1.042)	0.245	0.968 (0.874, 1.072)	0.529
H. pylori (-)	-0.196	< 0.001	1.000		1.000
Model 4 in the subjects with normal and underweight
H. pylori (+)	0.0563	0.159	0.987 (0.908-1.074)	0.764	1.009 (0.926-1.1)	0.835
H. pylori (-)	0.0435	0.057	1.000		1.000

H. pylori: Helicobacter pylori.