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Table 4

Crude, sex and age-adjusted ORs, and 95% CI for H. pylori infection defined by ELISA

Groups	Crude OR (95% CI)	Adjusted OR (95% CI)
Low risk	1.0	1.0
Moderate risk	3.30 (1.40–7.78)	3.34 (1.36–8.20)
High risk	10.33 (3.16–33.80)	10.21 (2.98–34.96)
	P trend <0.001	P trend <0.001

Groups	Crude OR (95% CI)	Adjusted OR (95% CI)
Low risk	1.0	1.0
Moderate risk	3.30 (1.40–7.78)	3.34 (1.36–8.20)
High risk	10.33 (3.16–33.80)	10.21 (2.98–34.96)
	P trend <0.001	P trend <0.001