Table 3.

Presence of serum IgG against H pylori in Betel chewers (oral cancer patients and healthy betel chewers) in relation to other factors

	H pylori positive (n = 20)	H pylori negative (n = 84)	Chi-square test (Table value 3.84;p = 0.05)
Use of tobacco and areca nut	19 [95%]	53 [63.1%]	p < 0.05 significant
Swallowing the quid	4 [20%]	14 [16.7%]	p > 0.05 Not significant
Sleeping with quid during night	10 [50%]	4 [4.8%]	p > 0.05 Not significant
Washing the mouth routinely after chewing betel	12 [60%]	62 [73.8%]	p > 0.05 Not significant