Objective: Asthmatic reactions to foods and drinks are a significant health
problem in the community, however, the true extent of this problem is uncl
ear. In this study, a new food allergy questionnaire (FAO) was designed to
specifically investigate the prevalence and characteristics of asthmatic re
actions triggered by alcoholic drinks, as well as other foods and chemicals
. The questionnaire's validity and reliability were assessed by comparing r
espondents' answers with data from clinical interview and repeat applicatio
n.
Methods: Twenty consecutive outpatients attending a Hospital Asthma Clinic
completed the FAQ and subsequently were interviewed independently by their
respiratory physician. The FAQ's ability to classify the asthma severity an
d atopic status of respondents, and to identify those asthmatics sensitive
to alcoholic drinks, sulphite-containing foods and aspirin was assessed by
comparison with clinical interview. The questionnaire's reliability was ass
essed in a separate and diverse community group of 20 asthmatic volunteers
using the test-retest method.
Results: Responses to the FAQ were found to correlate highly with assessmen
t by clinical interview for all of the parameters assessed. Specifically, t
he FAQ identified reactions to alcoholic drinks with a coefficient of agree
ment of 88.9%, a sensitivity of 100%, and a specificity of 83.3%. Responses
to the FAQ were also found to be reproducible for all of the parameters as
sessed.
Conclusion and implications: The FAQ is a useful and reliable tool for asse
ssing the sensitivity of asthmatics to alcoholic drinks and various foods a
nd chemicals, and provides a means to collect data relating to the prevalen
ce and characteristics of these responses in community-based populations.