Table 7.

Multivariate conditional logistic regression analysis

Factors	β	SE	Wald	P value	OR	95% CI
Hot food	0.84	0.31	7.63	0.006	2.32	1.28–4.23
Onion or garlic	−1.05	0.33	10.11	0.001	0.35	0.18–0.67
Fresh fruit	−0.60	0.29	4.34	0.037	0.55	0.31–0.97
Pickled vegetables	1.39	0.35	15.44	<0.001	4.05	2.01–8.03
Tea consumption	−1.35	0.49	7.77	0.005	0.26	0.10–0.67
Often feel troubled	0.79	0.30	7.03	0.008	2.21	1.23–3.98
PG I	−0.01	0.00	3.96	0.047	0.99	0.99–1.00
PG I/II ratio	−0.32	0.07	20.82	<0.001	0.73	0.63–0.83

PG, pepsinogen.