Additive interaction between hepatitis B virus infection and tobacco smoking on the risk of gastric cancer in a Chinese population

Table 3 Multiplicative interaction analysis of HBV infection and smoking with GC

Research factor		Case n(%)	Control n(%)	Multiplicative interaction OR(95%CI)
HBV	Smoke
No	No	177(43.28)	852(66.82)	1
No	Yes	178(43.52)	344(26.98)	2.00(1.19,3.34)
Yes	No	33(8.07)	51(4.00)	4.27(1.97,9.26)
Yes	Yes	21(5.13)	28(2.20)	4.73(1.85,12.08)
HBV*Smoke				0.55(0.17,1.79)

Note: Adjusted for sex, age, marital status, education level, income, BMI, smoke, drink, drinking tea, taste, history of diabetes, history of hypertension

ISSN: 1750-9378