Questionaires on symptoms of respiratory disease have been used in´Korea to elicit the probable; health effects of air pollution in epidemiologic studies. The objectives .Of. such studies often include comparing prevalence of symptoms of respiratory system between different population: groups or between the same population groups at different times. Unfortunately, little attention has been paid to standardization of those questionaires, whether those are Korean versions or not. Furthermore, no attempt to develop Korean questionaire on respirator* symptoms and relevant information has been made.
Followed by `a comparative study on responses to Korean version questionaires (English origin) of CMI, MRC, and ATS-DLD-78´13 two types of questionaires on respiratory symptoms and relevant information for Korean adult, which are short form (SU_TN=81-AS) and long forms (optional questions are added to the short one, SUN-81-AL), have been designed suitable to Korean background by authors (see Annex). The self-administered and closed-question questionaire :,ere tested their validity and reliability by administration to 180 normal´,adults(medical and nursing students) and 60 clinical patients of Seoul National University Hospital, with spirometric exam.
The results obtained and conclusions drawn are as follow:
1. It took less than 10 minutes to complete the questionaire SNU-81-AS and SNU-81-AT .
2. The test-retest reliability of each questions in AS and AL were observed as 92.7o a-- 92.1%, respectively. And all of the level of agreement are statistically significant v,-ith %a pa statistic.
3. In addition to higher prevalence rate of symptoms in patients group compared with r_crmal_ group, the correlations between FEV 1.0/FVC predictive value(%) and number of symntom;> were statistically significant in patients group (See Fig. 1 and Tabu 7).
A. The answer rate to optional questions in AL form among those who alr4 not to do was about100%, while the no-answer rate among who are to do was about 15-o in Normal (medical and nursing students) group.
´5. From the viewpoints of validity and reliability, the new Korean questio afire (SNU-8I-AS and AL) developed by
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