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Asian Pac J Allergy Immunol. 2004 Dec;22(4):175-81.

Surveying the prevalence of asthma, allergic rhinitis and eczema in school-children in Khon Kaen, Northeastern Thailand using the ISAAC questionnaire: phase III.

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  • 1Department of Pediatrics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.


This is the second survey of schoolchildren in Khon Kaen, Northeastern Thailand, using the Thai version of the ISAAC questionnaire to examine the trend in the prevalence of asthma, allergic rhinitis and eczema, and to compare the results with the ISAAC Phase I data. We analyzed 5,075 questionnaires comprising 2,119 six- to seven- and 2,956 thirteen- to fourteen-year-old children (48 and 42 percent male, respectively). The cumulative vs. 12-month prevalence according to the written questionnaires were: 14.3 vs. 9.8% for wheezing, 42.6 vs. 33.3% for rhinitis and 13.5 vs. 11.2% for eczema, respectively. The cumulative vs. 12-month prevalence for the wheezing module, based on the video questionnaire, was 9.2 vs. 6.3%, respectively. Most Phase III prevalence was significantly lower than the first survey except for the steady, 12-month prevalence of wheeze. Our study confirms the high prevalence of allergic diseases among school-children in Northeastern Thailand; albeit, prevalence has not increased in recent years. The Thai version of the English-language ISAAC questionnaire needs to be validated before further use in epidemiological research.

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