The aim of the present study was To determine the frequency and amount
of chili taken by peptic ulcer patients and control subjects. One hun
dred three Chinese patients with peptic ulcer and 87 control patients
were interviewed using a standard questionnaire. Those subjects who de
liberately avoided chili use because of symptoms or advice from friend
s or medical practitioners were excluded. The median number of times o
f chili use per month was eight in the ulcer group (25-75% quartiles 1
-30) compared to 24 (8-56) in the control group (P < 0.001). The media
n amount of chili used per month was 312 units (25-75% quartiles 38-89
9) in the ulcer group compared to 834 units (274-1892) in the control
group (P < 0.001). The odds ratio of having peptic ulcer disease, adju
sted for age, sex, analgesic use, and smoking by multiple logistic reg
ression, was 0.47 (95% confidence intervals: 0.25-0.89) for subjects w
ho had a higher intake of chili both in terms of frequency as well as
amount used compared to those who took less chili. Our data support th
e hypothesis that chili use has a protective effect against peptic ulc
er disease.